PHD Researcher jobs at Lawrence Livermore National Laboratory - 35 jobs

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $138,480 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description We have an opening for a Finite Element and HPC - Postdoctoral Researcher to perform research and development of finite element (FEM) discretizations and automatic differentiation (AD) algorithms in support of LLNL multiphysics high-performance computing (HPC) applications based on the MFEM finite element library. Of particular interest are applications involving high-order Arbitrary Lagrangian Eulerian (ALE) radiation-hydrodynamics as well as structural mechanics with contact running on large GPU system like LLNL's El Capitan. This position will be part of the MFEM team in the Numerical Analysis & Simulations Group of the Center for Applied Scientific Computing (CASC) Division within LLNL's Computing Directorate. You will Collaborate with a broad spectrum of scientists at LLNL on a joint research effort to enable differentiable simulations in large-scale multi-physics simulation codes. Research new algorithms for efficient and scalable high-order finite element meshing, discretizations and solvers in the context of differentiable multi-physics HPC applications. Implement and test the new methods in the MFEM finite element library, targeting flexible user interface, applicability to variety of applications, and parallel GPU scalability. Work with LLNL application teams to incorporate, evaluate and improve the performance of the new differentiable algorithms in specific applications. Document complex research and development progress via technical reports, journal publications, and conference presentations. Perform other duties as assigned. Qualifications Ph.D. in Mathematics, Applied Mathematics, Computational Science or a related field. Knowledge of finite element methods for PDE discretizations on unstructured meshes. Experience in developing complex C++ software in a Linux environment. Ability to perform independent research projects as demonstrated through publications of peer-reviewed literature. Proficient verbal and written communication skills necessary to author technical and scientific reports and papers and deliver scientific presentations. Ability to work independently as well as in multidisciplinary research teams. Desired Qualifications Knowledge of high-order finite element methods and familiarity with the MFEM library. Knowledge of automatic differentiation techniques and tools like Enzyme. Experience with ALE radiation-hydrodynamics algorithms or similar physics. Experience in developing large-scale parallel scientific software with MPI. Experience with GPU programming with CUDA or HIP. Additional Information #LI-Hybrid Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance None required. However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process. This process includes completing an online background investigation form and receiving approval of the background check. (This process does not apply to foreign nationals.) National Defense Authorization Act (NDAA) The 2025 National Defense Authorization Act (NDAA), Section 3112, generally prohibits citizens of China, Russia, Iran and North Korea without dual US citizenship or legal permanent residence from accessing specific non-public areas of national security or nuclear weapons facilities. The restrictions of NDAA Section 3112 apply to this position. To be qualified for this position, Candidates must be eligible to access the Laboratory in compliance with Section 3112. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. 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The National Energy Research Scientific Computing Center (NERSC) at Berkeley Lab seeks a highly motivated Postdoctoral Researcher - Scientific Machine Learning (NESAP) to join the Workflow Readiness team as part of NERSC's Science Acceleration Program (NESAP). You will join a multidisciplinary team building AI-driven scientific workflows for the upcoming Doudna supercomputer. Doudna will deliver over 10x the performance of Perlmutter and connect directly to DOE experimental and observational facilities so research teams can stream and analyze data in near real time. You will collaborate with NERSC staff, domain scientists, and partners at NVIDIA and Dell to prepare high-impact workflows for 12,000+ NERSC users. What You Will Do Contribute to one or more NESAP AI-based scientific workflows targeting NERSC HPC resources, edge resources, and the DOE ESnet network. Develop and apply advanced workflow capabilities to improve performance, portability, and productivity of scientific software. Collaborate with computational and domain scientists to integrate state‑of‑the‑art AI with simulation and data analysis, including modern agentic approaches. Publish and present results in peer‑reviewed venues. Examples of NESAP project themes Development, performance analysis and optimization of end‑to‑end science workflows, including those originating at DOE facilities. Deployment of capabilities such as AI training and inference at scale, and tight AI‑simulation coupling. What is Required PhD in Physics, Chemistry, Computational Science, Data Science, Computer Science, Applied Mathematics, or a related numerical field. Programming experience in one or more of: Python, C++, Fortran, Julia. Hands‑on experience building and training AI models with frameworks such as TensorFlow or PyTorch. Ability to succeed in an interdisciplinary team and communicate results clearly in writing and presentations. Desired Qualifications Knowledge of GPU architecture and GPU programming. Interest or experience in distributed training on large scientific datasets and staying current with new training methods and architectures. Experience with performance and profiling tools such as Perftools, NVIDIA Nsight, AMD uProf, or Omniperf. Debugging experience with distributed‑memory parallel applications. Experience with containers (Docker, Podman, Shifter or similar) and modern software practices such as Git, unit testing, CI/CD, and collaborative development. Publications in ML‑for‑Science, HPC, or systems venues (SC/ISC, PPoPP, IPDPS, MLSys, NeurIPS workshops). Preferred Application Materials Resume/CV Notes This is a full‑time, 2 year, postdoctoral appointment with the possibility of renewal based upon satisfactory job performance, continuing availability of funds and ongoing operational needs. You must have less than 3 years of paid postdoctoral experience. Salary for Postdoctoral positions depends on years of experience post‑degree. This position is represented by a union for collective bargaining purposes. The monthly salary range for this position is $8,570 - $9,935 and is expected to start at $8,570 or above. Postdoctoral positions are paid on a step schedule per union contract and salaries will be predetermined based on postdoctoral step rates. Each step represents one full year of completed post‑Ph.D. postdoctoral experience. This position is subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment. This position requires substantial on‑site presence, but is eligible for a flexible work mode, and hybrid schedules may be considered. Hybrid work is a combination of performing work on‑site at Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA and some telework. Individuals working a hybrid schedule must reside within 150 miles of Berkeley Lab. Work schedules are dependent on business needs. In rare cases, full‑time telework or remote work modes may be considered. A REAL ID or other acceptable form of identification is required to access Berkeley Lab sites. Want to learn more about working at Berkeley Lab? Please visit: careers.lbl.gov Equal Employment Opportunity The foundation of Berkeley Lab is our Stewardship Values: Team Science, Service, Trust, Innovation, and Respect; and we strive to build community with these shared values and commitments. Berkeley Lab is an Equal Opportunity Employer. We heartily welcome applications from all who could contribute to the Lab's mission of leading scientific discovery, excellence, and professionalism. In support of our rich global community, all qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, protected veteran status, or other protected categories under State and Federal law. Berkeley Lab is a University of California employer. It is the policy of the University of California to undertake affirmative action and anti‑discrimination efforts, consistent with its obligations as a Federal and State contractor. Misconduct Disclosure Requirement: As a condition of employment, the finalist will be required to disclose if they are subject to any final administrative or judicial decisions within the last seven years determining that they committed any misconduct, are currently being investigated for misconduct, left a position during an investigation for alleged misconduct, or have filed an appeal with a previous employer. #J-18808-Ljbffr

The National Energy Research Scientific Computing Center (NERSC) at Berkeley Lab seeks a highly motivated Postdoctoral Researcher - Scientific Machine Learning (NESAP) to join the Workflow Readiness team as part of NERSC's Science Acceleration Program (NESAP). You will join a multidisciplinary team building AI-driven scientific workflows for the upcoming Doudna supercomputer. Doudna will deliver over 10x the performance of Perlmutter and connect directly to DOE experimental and observational facilities so research teams can stream and analyze data in near real time. You will collaborate with NERSC staff, domain scientists, and partners at NVIDIA and Dell to prepare high-impact workflows for 12,000+ NERSC users. What You Will Do Contribute to one or more NESAP AI-based scientific workflows targeting NERSC HPC resources, edge resources, and the DOE ESnet network. Develop and apply advanced workflow capabilities to improve performance, portability, and productivity of scientific software. Collaborate with computational and domain scientists to integrate state-of-the-art AI with simulation and data analysis, including modern agentic approaches. Publish and present results in peer-reviewed venues. Examples of NESAP project themes Development, performance analysis and optimization of end-to-end science workflows, including those originating at DOE facilities. Deployment of capabilities such as AI training and inference at scale, and tight AI-simulation coupling. What is Required PhD in Physics, Chemistry, Computational Science, Data Science, Computer Science, Applied Mathematics, or a related numerical field. Programming experience in one or more of: Python, C++, Fortran, Julia. Hands‑on experience building and training AI models with frameworks such as TensorFlow or PyTorch. Ability to succeed in an interdisciplinary team and communicate results clearly in writing and presentations. Desired Qualifications Knowledge of GPU architecture and GPU programming. Interest or experience in distributed training on large scientific datasets and staying current with new training methods and architectures. Experience with performance and profiling tools such as Perftools, NVIDIA Nsight, AMD uProf, or Omniperf. Debugging experience with distributed‑memory parallel applications. Experience with containers (Docker, Podman, Shifter or similar) and modern software practices such as Git, unit testing, CI/CD, and collaborative development. Publications in ML‑for‑Science, HPC, or systems venues (SC/ISC, PPoPP, IPDPS, MLSys, NeurIPS workshops). Preferred Application Materials Resume/CV Notes This is a full‑time, 2 year, postdoctoral appointment with the possibility of renewal based upon satisfactory job performance, continuing availability of funds and ongoing operational needs. You must have less than 3 years of paid postdoctoral experience. Salary for Postdoctoral positions depends on years of experience post‑degree. This position is represented by a union for collective bargaining purposes. The monthly salary range for this position is $8,570 - $9,935 and is expected to start at $8,570 or above. Postdoctoral positions are paid on a step schedule per union contract and salaries will be predetermined based on postdoctoral step rates. Each step represents one full year of completed post‑Ph.D. postdoctoral experience. This position is subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment. This position requires substantial on‑site presence, but is eligible for a flexible work mode, and hybrid schedules may be considered. Hybrid work is a combination of performing work on‑site at Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA and some telework. Individuals working a hybrid schedule must reside within 150 miles of Berkeley Lab. Work schedules are dependent on business needs. In rare cases, full‑time telework or remote work modes may be considered. A REAL ID or other acceptable form of identification is required to access Berkeley Lab sites. Want to learn more about working at Berkeley Lab? careers.lbl.gov Equal Employment Opportunity Employer The foundation of Berkeley Lab is our Stewardship Values: Team Science, Service, Trust, Innovation, and Respect; and we strive to build community with these shared values and commitments. Berkeley Lab is an Equal Opportunity Employer. We heartily welcome applications from all who could contribute to the Lab's mission of leading scientific discovery, excellence, and professionalism. In support of our rich global community, all qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, protected veteran status, or other protected categories under State and Federal law. Berkeley Lab is a University of California employer. It is the policy of the University of California to undertake affirmative action and anti‑discrimination efforts, consistent with its obligations as a Federal and State contractor. Misconduct Disclosure Requirement As a condition of employment, the finalist will be required to disclose if they are subject to any final administrative or judicial decisions within the last seven years determining that they committed any misconduct, are currently being investigated for misconduct, left a position during an investigation for alleged misconduct, or have filed an appeal with a previous employer. #J-18808-Ljbffr

A top-tier research institution in Berkeley seeks a highly motivated Postdoctoral Researcher in Scientific Machine Learning. Join the Workflow Readiness team to build AI-driven scientific workflows for the Doudna supercomputer. The candidate will have a PhD in a relevant field and programming experience in Python, C++, or similar. This full-time position includes collaboration with experts in AI and computational science, focusing on advanced workflow development. #J-18808-Ljbffr

The Molecular Foundry at Lawrence Berkeley National Lab's (LBNL) is seeking to hire a Staff Scientist in the Nanofabrication Facility. This individual is expected to develop and lead a research program in quantum phenomena focused on fundamental understanding and materials targeting breakthroughs in coherence and scalability for quantum computing and quantum sensing. Candidates at every level of experience, ranging from early-career (career track) to experienced staff scientist, are encouraged to apply. This is an opportunity to join a vibrant research community dedicated to excellent science and international collaboration. The Molecular Foundry at Lawrence Berkeley National Lab's (LBNL) is a national user center for nanoscale science - one of five Department of Energy Nanoscale Science Research Centers. A multidisciplinary research center at the forefront of nanoscale science, the Molecular Foundry is a knowledge-based user facility that provides state-of-the-art expertise and instrumentation to a diverse, international community, drawing users from academia, national labs and industry. Here, you will be able to establish a leading research program taking advantage of our collaborative, interdisciplinary center. The Staff Scientist position at the Molecular Foundry is a full-time principal investigator position with a working model based on equal division (50%/50%) of effort between user support and independent, world-class research. Beyond your own scientific research, you will support the research of a diverse and collaborative user community, who access the Molecular Foundry via a peer‑reviewed proposal process. Your unique research portfolio will attract and expand the Molecular Foundry user community and complement the environment of ongoing multidisciplinary research across LBNL. This position is open to both career-track and career applications and the level at which the candidate will be hired is based on the experience and accomplishments. What You Will Do: Design and lead a robust individual research program related to the Molecular Foundry's research theme around materials for quantum science. This individual is expected to develop and lead a program on fundamental understanding of quantum phenomena in materials targeting breakthroughs in coherence and scalability in quantum computing and sensing. Develop a thriving multidisciplinary user program, drawing from industry, academia, and national labs, through the development of unique expertise and capabilities. Provide users with support through your own efforts, hands‑on and with your expert knowledge, in the area of nanofabrication. Manage research efforts surrounding the characterization and measurement of superconducting devices using our low‑temperature and high magnetic field physical property measurement system, as well as our ultra‑low temperature dilution refrigerator measurement tools. Use our newly commissioned quantum information science cluster deposition system and low temperature materials characterization capabilities to develop world class novel superconductor fabrication processes for next‑generation superconducting quantum devices. Integrate results from our materials deposition systems into unified data architectures enabling automatic characterization of superconducting thin films during growth. Combine the in‑process data, room temperature materials characterization, and low temperature material and device performance into fundamental datasets to enable machine learning models capable of predicting the key materials properties and process parameters for highly performant superconducting materials and device designs. Collaborate with other Foundry scientific staff members to provide scientific support for users and create and participate in collaborative research efforts beyond the single laboratory effort. Prepare scientific data for publication in refereed journals; and present findings at seminars and conferences. Supervise, mentor, and coach scientific and technical staff as appropriate. Provide technical direction to graduate students, postdocs, and research associates as appropriate, and assist in the management of research projects. Maintain a safe working environment and demonstrate respect for environmental protection, health and safety, and help instill those aspects in all staff and users of the Nanofabrication Facility. Maintain and develop a multidisciplinary and inclusive working environment using and building upon existing programs within the Molecular Foundry and Berkeley Lab. Share in user‑related operations, maintenance/administration, and development responsibilities within the Nanofabrication Facility. In addition to the responsibilities above, a Career Staff Scientist will: Perform all of the duties above with a high level of independence and autonomy and have demonstrated abilities for the above tasks. Have an extensive and proven track record of publications and collaborations within the scope of the primary research responsibilities for the position. What is Required: Ph.D. or equivalent degree in physics, chemistry, materials science and engineering, or another discipline relevant to nanofabrication, nanotechnology and nanoscience. Willingness to provide users with support through your own efforts, hands‑on and with your expert knowledge, in the area of nanofabrication. Excellent oral and written communications skills, open‑mindedness, and the desire and ability to collaborate with multiple research groups across disciplines. Productivity in areas related to nanoscale materials research, demonstrated by (for example) publications, talks at national and international meetings, and patents. Demonstrated ability to carry out independent research in a diverse, collaborative environment. Theoretical and practical expertise in nanofabrication instrumentation including reactive ion etching, atomic layer deposition, electron beam evaporation, sputtering, electron beam lithography and integrated ultra high vacuum systems. Knowledge and experience of safety practices and safety culture in a lab setting. In addition to the requirements above, a Career Staff Scientist: At least 5 years of professional research experience and an established track record working in nanoscience at academic, industrial or other research institutions. Be recognized as an active, high‑impact contributor in their specialized scientific field. Desired Qualifications: Experience running or directing ultra‑low temperature characterization experiments including but not limited to electrical transport measurements, high magnetic field characterization, and low background (ionizing radiation, EMI, IR/RF background, vibration…) device and material properties characterization. Demonstrated ability in performing and leading research, and an established track record working in nanoscience at academic, industrial or other research institutions. Excellent analytical and interpersonal skills; ability to work collaboratively with others towards broader shared goals, using clear judgment. Proven ability to communicate effectively and articulate a compelling scientific vision across all stakeholder groups. Required Application Materials: Statement of research experience and interests. (3 page limit) Application date: Priority consideration will be given to candidates who apply by December 15, 2025. Applications will be accepted until the job posting is removed. Appointment type: This is a full‑time 2‑year, career‑track term appointment that may be renewed to a maximum of five years and that may be converted to career based upon satisfactory job performance, continuing availability of funds, and ongoing operational needs. A Career position will be considered for those who have relevant experience or for existing Career‑Track or Term staff who have already exhausted the number of years eligible to hold a Career‑Track role. Salary range: The expected salary for this position is $129,924 - $207,900, which fits into the full salary of $129,924 - $311,820 depending upon the candidate's skills, knowledge, and abilities. This includes education, certifications, and years of experience. Background check: This position is subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment. Work modality: Work will be primarily performed at: Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA (4+ days of work onsite per week, with occasional work from home opportunities and travel‑related work opportunities). A REAL ID or other acceptable form of identification is required to access Berkeley Lab sites. Want to learn more about working at Berkeley Lab? Please visit: careers.lbl.gov Equal Employment Opportunity Employer: The foundation of Berkeley Lab is our Stewardship Values: Team Science, Service, Trust, Innovation, and Respect; and we strive to build community with these shared values and commitments. Berkeley Lab is an Equal Opportunity Employer. We heartily welcome applications from all who could contribute to the Lab's mission of leading scientific discovery, excellence, and professionalism. In support of our rich global community, all qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, protected veteran status, or other protected categories under State and Federal law. Berkeley Lab is a University of California employer. It is the policy of the University of California to undertake affirmative action and anti‑discrimination efforts, consistent with its obligations as a Federal and State contractor. Misconduct Disclosure Requirement: As a condition of employment, the finalist will be required to disclose if they are subject to any final administrative or judicial decisions within the last seven years determining that they committed any misconduct, are currently being investigated for misconduct, left a position during an investigation for alleged misconduct, or have filed an appeal with a previous employer. #J-18808-Ljbffr

A leading research institute in San Francisco is seeking a Staff Scientist in the Nanofabrication Facility to develop a research program on quantum phenomena for applications in quantum computing. The role includes user support and independent research, offering opportunities to collaborate internationally. Candidates with a Ph.D. and expertise in nanofabrication are encouraged to apply. The position entails managing research projects and mentoring staff. #J-18808-Ljbffr

Apply for JobJob ID696170 Full/Part TimeFull-Time Regular/TemporaryTemporary Add to Favorite JobsEmail this Job About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies. Life-changing careers. Learn more about Sandia at: *These benefits vary by job classification. What Your Job Will Be Like We are seeking Postdoctoral Appointee candidates with demonstrated publication record or relevant experience to join Sandia's Quantum Performance Laboratory to pursue world-leading research in the design and application of machine learning (ML) and artificial intelligence (AI) methods for the characterization, calibration, benchmarking, and simulation of quantum computers. You will be part of Sandia's much broader QIS and ML/AI programs and will have an opportunity to engage with researchers and teams across the QIS industry. Postdocs in our group work at the frontier of practical and theoretical quantum computing research, publish widely, and have broad latitude to identify compelling research problems, take leadership, and solve them. On any given day, you may: Work with a team developing and implementing new ML and AI methods for assessing and improving the performance of quantum computers; Interact and collaborate with a diverse set of software developers, experimentalists, and theorists at Sandia, academic institutions, other national labs, and private companies; Take ownership of technical projects, publish outstanding new developments in peer-reviewed scientific journals, and present your work at conferences. The location for this position may be on the main Sandia campus in Albuquerque, NM, or Livermore, CA, hybrid, or remote work. Qualifications We Require A PhD in Computer Science, Physics, Electrical Engineering, Mathematics, Chemistry, or a related science or engineering field, PhD must be conferred within 5 years of employment. Experience in scientific software development in Python, including collaborative code development, code verification, and modern software quality practices. Experience with ML code development, using ML software such as TensorFlow, and the application of ML to scientific research problems Qualifications We Desire Record of research as demonstrated by publications in peer-reviewed journals, competitive conference proceedings, or high-impact program deliverables Experience with mathematical techniques for modelling or characterization noisy quantum computers. Demonstrated research experience in quantum computation and information science. Experience turning math into code. About Our Team You will be a member of the Quantum Performance Laboratory (QPL), a multidisciplinary research and development group within Sandia National Laboratories. Our team develops and deploys cutting-edge techniques for assessing and improving the performance of quantum computing hardware, serving the needs of the U.S. government, industry, and academia. We are geographically dispersed, but maintain a strong culture of collaboration. The QPL works closely with a wide range of partners in industry and academia to develop new performance assessment tools and apply them to newly developed quantum computing platforms. We are committed to advancing the field of quantum computing, and we publish our research in scientific journals including Nature, Nature Physics, Nature Communications, Physical Review X, PRX Quantum, and Physical Review Letters. Our culture values work-life balance; we offer programs such as flexible work schedules with alternate Fridays off, on-site fitness facilities, and three weeks of vacation. Sandia provides employees with a comprehensive benefits package that includes medical, dental, vision, and a 401(k) with company-match. Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation. We are a world-class team of scientists, engineers, technologists, post docs, and visiting researchers all focused on cutting-edge technology, ranging from homeland defense, global security, biotechnology, and environmental preservation to energy and combustion research, computer security, and nuclear defense. Posting Duration This posting will be open for application submissions for a minimum of seven (7) calendar days, including the 'posting date'. Sandia reserves the right to extend the posting date at any time. Security Clearance This position does not currently require a Department of Energy (DOE) security clearance. Sandia will conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Furthermore, employees in New Mexico need to pass a U.S. Air Force background screen for access to Kirtland Air Force Base. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause access to be denied or terminated, resulting in the inability to perform the duties assigned and subsequent termination of employment. Under federal law, citizens and agents of the People's Republic of China, the Islamic Republic of Iran, the Democratic People's Republic of North Korea, and the Russian Federation are generally prohibited from accessing Sandia National Laboratories. Accordingly, such individuals will not be considered for employment unless they are also a citizen of the United States. If hired without a clearance and it subsequently becomes necessary to obtain and maintain one for the position, or you bid on positions that require a clearance, a pre-processing background review may be conducted prior to a required federal background investigation. Applicants for a DOE security clearance need to be U.S. citizens. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted. Members of the workforce (MOWs) hired at Sandia who require uncleared access for greater than 179 days during their employment, are required to go through the Uncleared Personal Identity Verification (UPIV) process. Access includes physical and/or cyber (logical) access, as well as remote access to any NNSA information technology (IT) systems. UPIV requirements are not applicable to individuals who require a DOE personnel security clearance for the performance of their SNL employment or to foreign nationals. The UPIV process will include the completion of a USAccess Enrollment, SF-85 (Questionnaire for Non-Sensitive Positions) and OF-306 (Declaration of for Federal Employment). An unfavorable UPIV determination will result in immediate retrieval of the SNL issued badge, removal of cyber (logical) access and/or removal from SNL subcontract. All MOWs may appeal the unfavorable UPIV determination to DOE/NNSA immediately. If the appeal is unsuccessful, the MOW may try to go through the UPIV process one year after the decision date. EEO All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status and any other protected class under state or federal law. NNSA Requirements for MedPEDs If you have a Medical Portable Electronic Device (MedPED), such as a pacemaker, defibrillator, drug-releasing pump, hearing aids, or diagnostic equipment and other equipment for measuring, monitoring, and recording body functions such as heartbeat and brain waves, if employed by Sandia National Laboratories you may be required to comply with NNSA security requirements for MedPEDs. If you have a MedPED and you are selected for an on-site interview at Sandia National Laboratories, there may be additional steps necessary to ensure compliance with NNSA security requirements prior to the interview date. Position Information This postdoctoral position is a temporary position for up to one year, which may be renewed at Sandia's discretion up to five additional years. The PhD must have been conferred within five years prior to employment. Individuals in postdoctoral positions may bid on regular Sandia positions as internal candidates, and in some cases may be converted to regular career positions during their term if warranted by ongoing operational needs, continuing availability of funds, and satisfactory job performance.

Apply for JobJob ID696588 Full/Part TimeFull-Time Regular/TemporaryTemporary Add to Favorite JobsEmail this Job About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies. Life-changing careers. Learn more about Sandia at: *These benefits vary by job classification. What Your Job Will Be Like We are seeking a postdoctoral researcher to work on the development and applications of scanning electron microscopy techniques for functional characterization of electronic materials and devices. The department currently has two customized microscopes with unique capabilities that include electron beam induced current, cathodoluminescence, scanning ultrafast electron microscopy, and electron plume imaging. The candidate should be self-motivated, able to work independently, and contribute creatively to team efforts. The candidate will be expected to present results at national/international meetings and publish research in high profile peer-reviewed journals. On any given day, you may be called on to: Conduct experiments using state-of-the-art characterization instrumentation.. Analyze data using established and custom modeling tools. Introduce new capabilities by integrating custom hardware. Present research progress at group meetings, peer review events, and technical conferences. Write and publish manuscripts in scientific journals Due to the nature of the work, the selected applicant must be able to work onsite. Qualifications We Require PhD degree in physics, electrical engineering, materials science, chemistry, or a closely related field Hands-on experience with electron sources and their application to semiconductor characterization. A record of publications in peer-reviewed journals and presentations at scientific conferences, consisting of a minimum of three (3) first-author or co-authored scientific publications. Highest degree received not more than five years prior to the date of application and all degree requirements completed before starting the appointment. Ability to obtain and maintain a DOE Q-level security clearance. Qualifications We Desire Experience with operando electronic device characterization. Experience with data acquisition hardware and software Experience with finite element modeling About Our Team The Materials Physics department performs fundamental research on the structure and properties of materials to support programs in energy research, device physics, materials reliability, and national security. Specific activities include experimental and modeling studies of surface electronic structure and surface atomic structure and dynamics of metals, oxides, low dimensional semiconductors, and adsorbates; atomic-scale structure and composition analysis of metals, semiconductors, and composites; electrical and optical properties of low-dimensional semiconductors and optoelectronic devices; and the structural and electrochemical characterization of solid-state ionic materials. The Department supports internal and external sponsors and government agencies that seek solutions to problems of fundamental scientific inquiry, energy sustainability, and national security Posting Duration This posting will be open for application submissions for a minimum of seven (7) calendar days, including the 'posting date'. Sandia reserves the right to extend the posting date at any time. Security Clearance Sandia is required by DOE to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants for employment need to be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted. Applicants offered employment with Sandia are subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. EEO All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status and any other protected class under state or federal law. NNSA Requirements for MedPEDs If you have a Medical Portable Electronic Device (MedPED), such as a pacemaker, defibrillator, drug-releasing pump, hearing aids, or diagnostic equipment and other equipment for measuring, monitoring, and recording body functions such as heartbeat and brain waves, if employed by Sandia National Laboratories you may be required to comply with NNSA security requirements for MedPEDs. If you have a MedPED and you are selected for an on-site interview at Sandia National Laboratories, there may be additional steps necessary to ensure compliance with NNSA security requirements prior to the interview date.

Apply for JobJob ID696432 Full/Part TimeFull-Time Regular/TemporaryTemporary Add to Favorite JobsEmail this Job About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies. Life-changing careers. Learn more about Sandia at: *These benefits vary by job classification. What Your Job Will Be Like We are seeking a highly motivated and driven postdoctoral appointee to join a multidisciplinary team focused on a multiscale effort to predict metallic microstructure evolution and mechanical failures in extreme environments. Ideal candidates will be creative problem solvers with a solid foundation in uncertainty quantification, AI/ML, and materials modeling, along with experience in scientific computing, as demonstrated by relevant publications and code contributions. On any given day, you may be called on to: conduct research to develop effective supervised and unsupervised learning algorithms to facilitate large-scale computational studies of phase field and polycrystalline structure evolution. The selected candidate will work closely with Sandia Principal Investigators and will also collaborate with scientists from other national laboratories and universities involved in the project. Due to the nature of the work, the selected candidate must be able to work onsite. Qualifications We Require PhD in a field of physical sciences, applied mathematics, engineering, or other relevant field conferred within five years prior to employment. Knowledge and expertise in machine learning and/or uncertainty quantification. Knowledge and expertise in computational science and/or software development. Ability to obtain and maintain DOE Q-level security clearance. Qualifications We Desire Proficiency in using open-source machine learning libraries such as PyTorch or JAX for developing, training, and deploying advanced machine learning models tailored to complex scientific problems. Expertise in operator learning and generative models with a focus on their applications in the physical sciences. Experience with reduced order modeling and latent space representations. Strong programming skills in C++ and Python and integration of machine learning solutions into existing scientific workflows. Collaborative research experience. Excellent interpersonal and communication skills. About Our Team The Quantitative Modeling and Analysis Department conducts research, development, and systems engineering in computer science and engineering to address important, complex national security problems. Key research areas include uncertainty quantification, optimization, inference modeling, data analysis, and algorithm development. Much of our application development work focuses on verification, validation and uncertainty quantification of complex problems. We provide trusted design and software development for large, operations software as well as detailed scientific computing software. The work is focused on providing efficient, validated information and technologies for use in predictive modeling and decision making. Posting Duration This posting will be open for application submissions for a minimum of seven (7) calendar days, including the 'posting date'. Sandia reserves the right to extend the posting date at any time. Security Clearance Sandia is required by DOE to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants for employment need to be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted. Applicants offered employment with Sandia are subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. EEO All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status and any other protected class under state or federal law. NNSA Requirements for MedPEDs If you have a Medical Portable Electronic Device (MedPED), such as a pacemaker, defibrillator, drug-releasing pump, hearing aids, or diagnostic equipment and other equipment for measuring, monitoring, and recording body functions such as heartbeat and brain waves, if employed by Sandia National Laboratories you may be required to comply with NNSA security requirements for MedPEDs. If you have a MedPED and you are selected for an on-site interview at Sandia National Laboratories, there may be additional steps necessary to ensure compliance with NNSA security requirements prior to the interview date.

Apply for JobJob ID696504 Full/Part TimeFull-Time Regular/TemporaryTemporary Add to Favorite JobsEmail this Job About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies. Life-changing careers. Learn more about Sandia at: *These benefits vary by job classification. What Your Job Will Be Like We are seeking a postdoctoral researcher to work on emerging device concepts for analog electronics, sensors and computing including harsh environment applications. The work will focus on device characterization using a variety of unique tools, as well as basic fabrication and circuit design. The candidate should be self-motivated, able to work independently, and contribute creatively to team efforts. The candidate will be expected to present results at national/international meetings and publish research in high profile peer-reviewed journals. On any given day, you may be called on to: Fabricate test chips with emerging devices prototypes using established recipes and semiconductor fabrication equipment. Conduct experiments using state-of-the-art characterization instrumentation. Analyze device performance using established and custom modeling tools Design and layout a custom printed circuit board. Perform experiments at unique test facilities. Present research progress at group meetings, peer review events, and technical conferences. Write and publish manuscripts in scientific journals Due to the nature of the work, the selected applicant must be able to work onsite. Qualifications We Require PhD degree in electrical engineering, physics, or a closely related field Hands-on experience with electronic device fabrication and characterization A record of publications in peer-reviewed journals and presentations at scientific conferences and demonstrated ability to communicate in English to an international scientific audience is essential Highest degree received not more than five years prior to the date of application and all degree requirements completed before starting the appointment Ability to obtain and maintain a DOE Q-level security clearance Qualifications We Desire Experience with analog circuit design Experience with high temperature and/or radiation effects in electronics About Our Team The Materials Physics department performs fundamental research on the structure and properties of materials to support programs in energy research, device physics, materials reliability, and national security. Specific activities include experimental and modeling studies of surface electronic structure and surface atomic structure and dynamics of metals, oxides, low dimensional semiconductors, and adsorbates; atomic-scale structure and composition analysis of metals, semiconductors, and composites; electrical and optical properties of low-dimensional semiconductors and optoelectronic devices; and the structural and electrochemical characterization of solid-state ionic materials. The Department supports internal and external sponsors and government agencies that seek solutions to problems of fundamental scientific inquiry, energy sustainability, and national security. Posting Duration This posting will be open for application submissions for a minimum of seven (7) calendar days, including the 'posting date'. Sandia reserves the right to extend the posting date at any time. Security Clearance Sandia is required by DOE to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants for employment need to be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted. Applicants offered employment with Sandia are subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment. EEO All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status and any other protected class under state or federal law. NNSA Requirements for MedPEDs If you have a Medical Portable Electronic Device (MedPED), such as a pacemaker, defibrillator, drug-releasing pump, hearing aids, or diagnostic equipment and other equipment for measuring, monitoring, and recording body functions such as heartbeat and brain waves, if employed by Sandia National Laboratories you may be required to comply with NNSA security requirements for MedPEDs. If you have a MedPED and you are selected for an on-site interview at Sandia National Laboratories, there may be additional steps necessary to ensure compliance with NNSA security requirements prior to the interview date.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $138,480 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description We have an immediate opening for a Computational Optimizer to conduct research in the areas of stochastic, decentralized, and/or multi-level optimization, with specific application to critical infrastructure systems. You will be an integral part of a multi-disciplinary team of researchers, with skill sets ranging from computer and climate science to power and industrial engineering; projects are typically collaborative with partner academic institutions and other national labs. You will be developing advanced models of decision-making under uncertainty and adversarial contexts for critical infrastructure operations, planning, and resilience. The ability to conduct fluid engagement with domain experts and end-users to characterize, analyze, and communicate inputs and solutions is critical in this role. Development of advanced mathematical optimization models (e.g., MIP formulations) and scalable (e.g., via decomposition) solvers will be a primary technical focus. This position is in the Center for Applied Scientific Computing (CASC), which resides within the Computing Directorate at LLNL. The research will be conducted in conjunction with LLNL's Cyber and Infrastructure Resilience (CIR) program. In this role you will Develop and extend mathematical programming (e.g., MIP, NLP, and MINLP) formulations of core critical infrastructure operations and planning optimization models. Design and implement high-performance (parallel) solvers for stochastic, multi-level, and/or decentralized optimization models of critical infrastructure. Analyze and mitigate performance bottlenecks in parallel solver implementations. Publish research results in external peer-reviewed scientific journals and participate in conferences and workshops. Present formal and informal overviews of research progress at group meetings. Contribute to grant proposals and collaborate with others in a multidisciplinary team environment to accomplish research goals. Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internal and external to the Laboratory. Perform other duties as assigned. Qualifications Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. Ph.D. in Operations Research, Industrial Engineering, Computer Science, Applied Mathematics, or closely related field. Working knowledge of at least one algebraic modeling language (e.g., Pyomo, JuMP, AMPL, and GAMS) for mathematical optimization. Working knowledge of at least one widely used mathematical optimization solver (e.g., Gurobi, CPLEX, and Express). Experience developing software in a high-level language such as Python, Julia, and C++ (Python preferred). Experience developing advanced optimization solvers considering either adversarial (multi-level) behaviors, uncertain inputs, or decentralized contexts. Publication record in high-quality peer-reviewed journals and/or conferences. Analytical and problem-solving skills necessary to craft creative solutions to independently solve complex problems. Proficient verbal and written communication skills to effectively collaborate in a team environment, present and explain technical information to technical as well as non-technical audiences, document work and write research papers. Desired qualifications (optional) Experience with high-performance computing systems, specifically parallel programming libraries such as MPI. Experience with the application of mathematical optimization to critical infrastructure systems, including electricity grid and natural gas networks. Experience processing and analyzing geospatial information, including climate and weather data. Additional Information #LI-Hybrid Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $138,480 Annually Job Description We're looking for a Machine Learning Postdoctoral Researcher to contribute to fundamental R&D in machine learning and statistical methods in support of different projects related to AI Safety & Security, Foundation Models in areas such as material science or bio assurance, and uncertainty quantification for deep learning models. These will be interdisciplinary projects that aim to combine state-of-the-art machine learning models with various science objectives. Examples are multi-modal sequence-to-sequence models for molecules and chemical reactions or combine large language models with other modalities. Furthermore, you will develop methods to improve safety and trustworthiness of these models. This position will be in the Machine Intelligence Group in the Center for Applied Scientific Computing (CASC) Division within the LLNL Computing Directorate. You will Research, design, implement, and apply advanced machine learning methods for multiple applications in a collaborative scientific environment. Actively participate with project scientists and engineers in defining, planning, and formulating experimental, modeling, and simulation efforts for complex problems stemming from national security applications. Propose and implement advanced analysis methodologies, collect and analyze data, and document results in technical reports and peer-reviewed publications. Contribute to grant proposals and collaborate with others in a multidisciplinary team environment, including academic and industrial partners, to accomplish research goals. Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internal and external to the Laboratory. Perform other duties as assigned. Qualifications Must be eligible to access the Laboratory in compliance with Section 3112 of the National Defense Authorization Act (NDAA). See Additional Information section below for details. Recent Ph.D. in Machine Learning, Optimization, Computer Science, Mathematics or a related field. Demonstrated ability and desire to obtain substantial domain knowledge in fields of application to enable effective communication with subject matter experts, and to identify novel, impactful applications of machine learning. Experience developing, implementing and applying advanced statistical or machine learning models and algorithms using modern software libraries such as PyTorch, TensorFlow, or similar as evidence through medium to large scale deep learning models and experiments. Demonstrated research productivity, as documented by publications, reports, presentations, and/or open-source software in relevant venues (NeurIPS, ICML, ICLR, CVPR, AAAI, AISTATS, UAI, KDD, JMLR, Nature etc.) Experience with scientific programming in the Python ecosystem as evidence through software artifacts, such as deep learning models, workflows, simulations, or similar Experience with one or more of the following areas of deep learning: large language models, graph neural networks, multimodal models, generative models, robustness, explainable AI Qualifications We Desire Experience with high-performance computing, GPU programming, parallel programming, cloud computing, and/or related methods including running numerical simulations of complex workflows Demonstrated technical leadership in fields related to machine learning, such as mentorship or managing teams. Experience or interest in scientific applications, such as, material science, climate science, etc. Additional Information #LI-Hybrid Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance None required. However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process. This process includes completing an online background investigation form and receiving approval of the background check. (This process does not apply to foreign nationals.) National Defense Authorization Act (NDAA) The 2025 National Defense Authorization Act (NDAA), Section 3112, generally prohibits citizens of China, Russia, Iran and North Korea without dual US citizenship or legal permanent residence from accessing specific non-public areas of national security or nuclear weapons facilities. The restrictions of NDAA Section 3112 apply to this position. To be qualified for this position, Candidates must be eligible to access the Laboratory in compliance with Section 3112. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $117,900 - $135,060 Annually This is the lowest to highest salary in good faith we would pay for this role at the time of this posting. Pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description We have multiple openings for Postdoctoral Researchers. You will engage in cutting edge research, design, and deployment of statistical methods to solve important decision and detection problems stemming from the Laboratory's core mission spaces. You will have expertise in one of the following desired areas: Bayesian modeling, uncertainty quantification, analysis and design of computer experiments, statistical learning, statistical methods for “Big Data” or general statistical consulting. These positions are in the Computational Engineering Division (CED), within the Engineering Directorate. You will Conduct independent, as well as participate in team-based research in and development of one or more of the following areas: physical process modeling, image and video analysis, uncertainty quantification, calibration, design of computer experiments, large-scale model architectures. Design, implement, and analyze techniques in one or more of the above areas. Contribute to and actively participate with project scientists and engineers in the scope, planning, and formulating modeling/simulation efforts for physical, engineering, and computational systems in the areas of physics, cyber security, biological and environmental threat detection, uncertainty quantification, and others. Develop, implement, validate, and document specialized analysis software tools and models as required, including preparing complex and detailed progress reports, written analyses, and verbal briefings to support project needs and deadlines. Collaborate with others in a multidisciplinary team environment to accomplish research goals including industrial and academic partners. Organize, analyze and publish research results in peer-reviewed scientific or technical journals and present results at external conferences seminars and/or technical meetings. Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally to the Laboratory. Travel as needed to coordinate with research collaborators and to attend external meetings and conferences. Perform other duties as assigned. Qualifications Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. PhD degree in Statistics or related technical or scientific field. Fundamental knowledge and/or experience developing and applying statistical/machine learning models and algorithms for one or more of the following settings: calibration, uncertainty quantification, surrogate modeling, design of experiments, classification, clustering, anomaly detection. Effective initiative and interpersonal skills and ability to work in a collaborative, multidisciplinary team environment, including demonstrated desire and ability to obtain substantial domain knowledge in fields of application . Proficient verbal and written communication skills to collaborate effectively in a team environment, present and explain technical information, and effectively communicate with subject matter experts. Fundamental knowledge of and experience applying programming skills using at least one prototyping language Python/R/Matlab, as well as one of C/C++/Java to enable high performance statistical computation. Ability to develop independent research projects as demonstrated through publication of peer-reviewed literature. Additional Information #LI-Hybrid Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $117,900 - $135,060 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description We have an opening for a Space Hardware Postdoctoral Researcher to conduct research in the areas of structural mechanics, and engineering design of advanced materials for space applications. You will contribute to cutting-edge research focused on developing the next generation of large aperture optical space payloads, with a focus on novel structures, mechanisms and advanced materials. This position is in Advanced Space Development Group (ASDG) in the National Security Engineering Division (NSED), within the Engineering Directorate. This position requires full-time on-site presence due to the nature of the work. You will Conduct fundamental research in structural dynamics of novel materials for space payload applications. Develop custom structural and dynamic finite element simulations. Research and advise the Space Hardware group on research direction for novel materials. Contribute to the conception, design and execution of experiments related to novel material development and characterization. Support lab experiments to test and characterize mechanical response of novel materials for space applications. Communicate and collaborate with engineers, scientists and physicists supporting space payload development. Develop new computational tools for high performance computing studies. Support proposal development for the Space Hardware group. Design research plans, generate and analyze results, publish findings in peer- reviewed journals. Present research outcomes at conferences, seminars, and technical meetings. Contribute to technical reports for sponsors and stakeholders. Travel as needed to coordinate with research collaborators and visit field sites. Perform other duties as assigned. Qualifications Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. PhD in a related field physical science, engineering or applied mathematics discipline. Experience designing complex mechanical devices, accounting for material choices, thermal management, and preferably, optical performance. Experience developing innovative solutions to scientific and technical problems. Ability to perform and undertake independent and original research and communicate findings through publication of journal articles and presentations at seminars and scientific meetings. Proficient verbal and written communication skills and demonstrated leadership skills to collaborate effectively in a multidisciplinary team environment. Ability to travel. Qualifications We Desire Experience in mathematical modeling of material interactions in harsh environments. Demonstrated understanding of the requirements of space-bound mechanical components and mechanisms. Demonstrated understanding of the effects of radiation on space electronics and how to use novel material approaches to provide appropriate shielding. Additional Information #LI-Onsite Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $117,900 - $135,060 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description We have an opening for a Space Hardware Postdoctoral Researcher to conduct research in the areas of structural mechanics, and engineering design of advanced materials for space applications. You will contribute to cutting-edge research focused on developing the next generation of large aperture optical space payloads, with a focus on novel structures, mechanisms and advanced materials. This position is in Advanced Space Development Group (ASDG) in the National Security Engineering Division (NSED), within the Engineering Directorate. This position requires full-time on-site presence due to the nature of the work. You will * Conduct fundamental research in structural dynamics of novel materials for space payload applications. * Develop custom structural and dynamic finite element simulations. * Research and advise the Space Hardware group on research direction for novel materials. * Contribute to the conception, design and execution of experiments related to novel material development and characterization. * Support lab experiments to test and characterize mechanical response of novel materials for space applications. * Communicate and collaborate with engineers, scientists and physicists supporting space payload development. * Develop new computational tools for high performance computing studies. * Support proposal development for the Space Hardware group. * Design research plans, generate and analyze results, publish findings in peer- reviewed journals. * Present research outcomes at conferences, seminars, and technical meetings. * Contribute to technical reports for sponsors and stakeholders. * Travel as needed to coordinate with research collaborators and visit field sites. * Perform other duties as assigned. Qualifications * Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. * PhD in a related field physical science, engineering or applied mathematics discipline. * Experience designing complex mechanical devices, accounting for material choices, thermal management, and preferably, optical performance. * Experience developing innovative solutions to scientific and technical problems. * Ability to perform and undertake independent and original research and communicate findings through publication of journal articles and presentations at seminars and scientific meetings. * Proficient verbal and written communication skills and demonstrated leadership skills to collaborate effectively in a multidisciplinary team environment. * Ability to travel. Qualifications We Desire * Experience in mathematical modeling of material interactions in harsh environments. * Demonstrated understanding of the requirements of space-bound mechanical components and mechanisms. * Demonstrated understanding of the effects of radiation on space electronics and how to use novel material approaches to provide appropriate shielding. Additional Information #LI-Onsite Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? * Included in 2025 Best Places to Work by Glassdoor! * Flexible Benefits Package * 401(k) * Relocation Assistance * Education Reimbursement Program * Flexible schedules (*depending on project needs) * Our values - visit ***************************************** Security Clearance This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under "Find Your Job" of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here. Videos To Watch

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $9,907 monthly Job Description Note: This is a two-year Postdoctoral appointment with the possibility of extension to a maximum of three years. We are seeking a highly motivated Postdoctoral Researcher to conduct research in the field of synthetic biology for critical metal recovery. The successful candidate will contribute to cutting-edge research focused on using synthetic biology to recover critical metals from domestic feedstocks. This work will involve identifying, characterizing, engineering, and implementing novel proteins and pathways for sustainable biotechnology applications. This position is in the Synthetic Biology group in the Biosciences and Biotechnology Division within the Physical and Life Sciences Directorate. This position requires full-time on-site presence due to the nature of the work. You will Conduct fundamental and applied research in microbial synthetic biology for environmental and resource recovery applications. Develop and execute high throughput assays to evaluate the functionality of protein variants. Engineer and implement genetic circuits in environmentally relevant microorganisms and characterize performance in test beds of increasing complexity. Design research plans, generate and analyze results, publish findings in peer-reviewed journals. Present research outcomes at conferences, seminars, and technical meetings. Contribute to technical reports for sponsors and stakeholders Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally to the Laboratory. Perform other duties as assigned. Qualifications Must be eligible to access the Laboratory in compliance with Section 3112 of the National Defense Authorization Act (NDAA). See Additional Information section below for details. PhD in Microbiology, Synthetic Biology, Biochemistry, Bioengineering, or a related field with a strong emphasis in genetic engineering and molecular biology. Strong background in bacterial physiology and strain engineering for environmental or industrial applications. Experience in design, construction, and analysis of genetic circuits. Experience in high-throughput screening or selection methodologies. Demonstrated ability to conduct independent research as evidenced by peer-reviewed publications. Excellent verbal and written communication and interpersonal skills to collaborate effectively in a multidisciplinary team environment. Qualifications We Desire Expertise and knowledge in metalloprotein biochemistry and metal homeostasis, including metal sensing, metal transport, or metal storage mechanisms. Experience with protein design/engineering or microbial evolution techniques (e.g., adaptive laboratory evolution). Experience in genome and metagenome-wide association approaches to identify genetic determinants of microbial traits. Hands-on experience with gene manipulation of non-model microbial systems. Proficiency in bioinformatics or scientific programming (e.g., Python, C, C++, R, Java, Matlab). Additional Information #LI-Onsite Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance None required. However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process. This process includes completing an online background investigation form and receiving approval of the background check. (This process does not apply to foreign nationals.) National Defense Authorization Act (NDAA) The 2025 National Defense Authorization Act (NDAA), Section 3112, generally prohibits citizens of China, Russia, Iran and North Korea without dual US citizenship or legal permanent residence from accessing specific non-public areas of national security or nuclear weapons facilities. The restrictions of NDAA Section 3112 apply to this position. To be qualified for this position, Candidates must be eligible to access the Laboratory in compliance with Section 3112. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $118,068 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description Lawrence Livermore National Laboratory's Postdoctoral Research Programs provide mentored training to enhance professional skills and research independence for individuals who have recently earned their doctoral degree and are pursuing their chosen career path. We're looking for a Postdoctoral Researcher for the Center for Global Security Research (CGSR). CGSR was established at Lawrence Livermore National Laboratory (LLNL) in 1996 to serve as a bridge between the science & technology experts at the lab and the broader national security policy communities. Given LLNL's mission to support nuclear deterrence, CGSR's core topics are related to nuclear matters, including strategic deterrence, international stability, arms control, and nonproliferation. The Center also conducts work on other topics related to the changing security environment such as regional studies, emerging and potentially disruptive technologies, energy issues, and biosecurity. The five main research thrust areas at the Center are: Major Power Rivalry and Conflict, New Regional Challengers and Challenges, Toward Deterrence Strategy 3.0, Future of Long-Term Competitive Strategies, and Future of Cooperative Strategies to Reduce Global Dangers. Complete descriptions of the CGSR thrust areas and examples of the Center's work can be found at *********************** The Center works to achieve these objectives by 1) convening seminars with outside speakers to better understand national policy priorities and national and international developments bearing on the lab's missions, 2) providing analysis and expertise to laboratory leadership in support of strategic planning and to national leadership in policy development and implementation, and 3) advancing thinking about contemporary and emerging national security challenges related to strategic conflict through independent research, workshops, and publications. The Center's work is conducted on an entirely unclassified basis and is multidisciplinary and entirely nonpartisan in character. CGSR Postdoctoral Researchers will spend their time engaged in research and writing and are expected to participate in seminars and workshops and to interact and collaborate with leading scientists and researchers across the lab. They will have the opportunity to conduct research on the scientific and technical aspects of security topics, as well as to work in collaboration with CGSR research staff. The CGSR Postdoctoral Researcher provides an unparalleled opportunity for scholars to explore complex national and international security problems across the five thrust areas and innovative solutions in a collaborative research environment. Application Details Research abstract (200 words max) Research project prospectus or description of dissertation (1,500 words max, not including footnotes/endnotes) Writing sample (50 pages max) Three references (will be contacted if short-listed). All application updates and attachments should be submitted by January 17, 2026. Selected applicants are expected to start no later than September 1, 2026 You will Conduct research on politically significant national security topics in line with CGSR research thrust areas. Meet with your CGSR mentor at least once a month to review and refine your research topic, discuss project progress, and receive general career and intellectual guidance. Publish papers in external outlets such as peer-reviewed journals and/or via CGSR's in-house publication options. Communicate and present research findings to different audiences, including the laboratory, U.S. policymakers, officials in allied countries, academia, think tanks, or at workshops and conferences. Lead or contribute to the organization and execution of CGSR workshops. Respond effectively to the needs of CGSR and other LLNL managers with timely, high quality, finished analyses for presentation or publication. Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally. Collaborate with others in a multidisciplinary team environment to accomplish research goals. Complete brief quarterly fellowship reports in which you describe your research, writing, and presentation activities during that period. Qualifications PhD in Political Science, International Relations, the physical or life sciences, engineering, regional or area studies, or a related field. Experience researching, analyzing, and writing on one or more of the following subjects: nuclear deterrence, arms control, nonproliferation, emerging technologies, cybersecurity, biological & chemical security, regional studies, and energy security. Experience effectively conducting independent research, publishing papers (including publication of peer-reviewed literature), and presenting research findings via briefings, lectures, or general presentations. Ability to work effectively both individually and in a team environment to achieve results in a timely manner. Proficient verbal and written communication skills to collaborate effectively in a team environment and present and explain technical information. Attention to detail, rigorous logic skills, and familiarization with advanced analytic tools and methodologies. Additional Information All your information will be kept confidential according to EEO guidelines. Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? Included in 2025 Best Places to Work by Glassdoor! Flexible Benefits Package 401(k) Relocation Assistance Education Reimbursement Program Flexible schedules (*depending on project needs) Our values - visit ***************************************** Security Clearance This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under “Find Your Job” of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $9,907 monthly Job Description Note: This is a two-year Postdoctoral appointment with the possibility of extension to a maximum of three years. We are seeking a highly motivated Postdoctoral Researcher to conduct research in the field of synthetic biology for critical metal recovery. The successful candidate will contribute to cutting-edge research focused on using synthetic biology to recover critical metals from domestic feedstocks. This work will involve identifying, characterizing, engineering, and implementing novel proteins and pathways for sustainable biotechnology applications. This position is in the Synthetic Biology group in the Biosciences and Biotechnology Division within the Physical and Life Sciences Directorate. This position requires full-time on-site presence due to the nature of the work. You will * Conduct fundamental and applied research in microbial synthetic biology for environmental and resource recovery applications. * Develop and execute high throughput assays to evaluate the functionality of protein variants. * Engineer and implement genetic circuits in environmentally relevant microorganisms and characterize performance in test beds of increasing complexity. * Design research plans, generate and analyze results, publish findings in peer-reviewed journals. * Present research outcomes at conferences, seminars, and technical meetings. * Contribute to technical reports for sponsors and stakeholders * Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally to the Laboratory. * Perform other duties as assigned. Qualifications * Must be eligible to access the Laboratory in compliance with Section 3112 of the National Defense Authorization Act (NDAA). See Additional Information section below for details. * PhD in Microbiology, Synthetic Biology, Biochemistry, Bioengineering, or a related field with a strong emphasis in genetic engineering and molecular biology. * Strong background in bacterial physiology and strain engineering for environmental or industrial applications. * Experience in design, construction, and analysis of genetic circuits. * Experience in high-throughput screening or selection methodologies. * Demonstrated ability to conduct independent research as evidenced by peer-reviewed publications. * Excellent verbal and written communication and interpersonal skills to collaborate effectively in a multidisciplinary team environment. Qualifications We Desire * Expertise and knowledge in metalloprotein biochemistry and metal homeostasis, including metal sensing, metal transport, or metal storage mechanisms. * Experience with protein design/engineering or microbial evolution techniques (e.g., adaptive laboratory evolution). * Experience in genome and metagenome-wide association approaches to identify genetic determinants of microbial traits. * Hands-on experience with gene manipulation of non-model microbial systems. * Proficiency in bioinformatics or scientific programming (e.g., Python, C, C++, R, Java, Matlab). Additional Information #LI-Onsite Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? * Included in 2025 Best Places to Work by Glassdoor! * Flexible Benefits Package * 401(k) * Relocation Assistance * Education Reimbursement Program * Flexible schedules (*depending on project needs) * Our values - visit ***************************************** Security Clearance None required. However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process. This process includes completing an online background investigation form and receiving approval of the background check. (This process does not apply to foreign nationals.) National Defense Authorization Act (NDAA) The 2025 National Defense Authorization Act (NDAA), Section 3112, generally prohibits citizens of China, Russia, Iran and North Korea without dual US citizenship or legal permanent residence from accessing specific non-public areas of national security or nuclear weapons facilities. The restrictions of NDAA Section 3112 apply to this position. To be qualified for this position, Candidates must be eligible to access the Laboratory in compliance with Section 3112. Pre-Employment Drug Test External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor. Wireless and Medical Devices Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices. If you use a medical device, which pairs with a mobile device, you must still follow the rules concerning the mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit/Buffer Space within buildings. How to identify fake job advertisements Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under "Find Your Job" of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond. To learn more about recruitment scams: ***************************************************************************************** Equal Employment Opportunity We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws. Reasonable Accommodation Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. California Privacy Notice The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here. Videos To Watch

Join us and make YOUR mark on the World! Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place. We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory's mission. Pay Range $118,068 Annually This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. An employee's position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. Job Description Lawrence Livermore National Laboratory's Postdoctoral Research Programs provide mentored training to enhance professional skills and research independence for individuals who have recently earned their doctoral degree and are pursuing their chosen career path. We're looking for a Postdoctoral Researcher for the Center for Global Security Research (CGSR). CGSR was established at Lawrence Livermore National Laboratory (LLNL) in 1996 to serve as a bridge between the science & technology experts at the lab and the broader national security policy communities. Given LLNL's mission to support nuclear deterrence, CGSR's core topics are related to nuclear matters, including strategic deterrence, international stability, arms control, and nonproliferation. The Center also conducts work on other topics related to the changing security environment such as regional studies, emerging and potentially disruptive technologies, energy issues, and biosecurity. The five main research thrust areas at the Center are: * Major Power Rivalry and Conflict, * New Regional Challengers and Challenges, * Toward Deterrence Strategy 3.0, * Future of Long-Term Competitive Strategies, and * Future of Cooperative Strategies to Reduce Global Dangers. Complete descriptions of the CGSR thrust areas and examples of the Center's work can be found at *********************** The Center works to achieve these objectives by 1) convening seminars with outside speakers to better understand national policy priorities and national and international developments bearing on the lab's missions, 2) providing analysis and expertise to laboratory leadership in support of strategic planning and to national leadership in policy development and implementation, and 3) advancing thinking about contemporary and emerging national security challenges related to strategic conflict through independent research, workshops, and publications. The Center's work is conducted on an entirely unclassified basis and is multidisciplinary and entirely nonpartisan in character. CGSR Postdoctoral Researchers will spend their time engaged in research and writing and are expected to participate in seminars and workshops and to interact and collaborate with leading scientists and researchers across the lab. They will have the opportunity to conduct research on the scientific and technical aspects of security topics, as well as to work in collaboration with CGSR research staff. The CGSR Postdoctoral Researcher provides an unparalleled opportunity for scholars to explore complex national and international security problems across the five thrust areas and innovative solutions in a collaborative research environment. Application Details * Research abstract (200 words max) * Research project prospectus or description of dissertation (1,500 words max, not including footnotes/endnotes) * Writing sample (50 pages max) * Three references (will be contacted if short-listed). All application updates and attachments should be submitted by January 17, 2026. Selected applicants are expected to start no later than September 1, 2026 You will * Conduct research on politically significant national security topics in line with CGSR research thrust areas. * Meet with your CGSR mentor at least once a month to review and refine your research topic, discuss project progress, and receive general career and intellectual guidance. * Publish papers in external outlets such as peer-reviewed journals and/or via CGSR's in-house publication options. * Communicate and present research findings to different audiences, including the laboratory, U.S. policymakers, officials in allied countries, academia, think tanks, or at workshops and conferences. * Lead or contribute to the organization and execution of CGSR workshops. * Respond effectively to the needs of CGSR and other LLNL managers with timely, high quality, finished analyses for presentation or publication. * Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally. * Collaborate with others in a multidisciplinary team environment to accomplish research goals. * Complete brief quarterly fellowship reports in which you describe your research, writing, and presentation activities during that period. Qualifications * PhD in Political Science, International Relations, the physical or life sciences, engineering, regional or area studies, or a related field. * Experience researching, analyzing, and writing on one or more of the following subjects: nuclear deterrence, arms control, nonproliferation, emerging technologies, cybersecurity, biological & chemical security, regional studies, and energy security. * Experience effectively conducting independent research, publishing papers (including publication of peer-reviewed literature), and presenting research findings via briefings, lectures, or general presentations. * Ability to work effectively both individually and in a team environment to achieve results in a timely manner. * Proficient verbal and written communication skills to collaborate effectively in a team environment and present and explain technical information. * Attention to detail, rigorous logic skills, and familiarization with advanced analytic tools and methodologies. Additional Information All your information will be kept confidential according to EEO guidelines. Position Information This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date. Why Lawrence Livermore National Laboratory? * Included in 2025 Best Places to Work by Glassdoor! * Flexible Benefits Package * 401(k) * Relocation Assistance * Education Reimbursement Program * Flexible schedules (*depending on project needs) * Our values - visit ***************************************** Security Clearance This position requires a Department of Energy (DOE) Q-level clearance. If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship. 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