PsiQuantum jobs - 63 jobs

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: We're looking for a social media-savvy remote Freelance Junior Video Editor to help repurpose our existing content library for digital platforms. You'll work closely with our Video Producer to transform longer-form interviews and branded content into engaging social media edits. Responsibilities: * Edit short-form content (reels, stories, clips) from existing edits and raw footage for LinkedIn, Instagram, Twitter/X, and other social platforms. * Create multiple cutdowns and variations of existing video content optimized for different platforms and audiences. * Add captions, subtitles, graphics, and on-brand text overlays. * Stay current on social media trends, formats, and best practices across platforms. * Organize and manage footage libraries and project files. * Collaborate on creative approaches to maximize engagement and reach. * Light color correction and audio mixing as needed Experience/Qualifications: Ideal Candidate: Someone who lives and breathes social media, understands platform-specific editing styles, and can work independently to create thumb-stopping content. Adobe Premiere Pro experience required. After Effects experience is a plus. Technical Requirements: Fast/fiber internet connection is essential for remote editing workflows. * In order to be considered for this opportunity, applicants must provide a link to your reel* PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies.

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: The Engineering and New Product Introduction (NPI) Buyer is responsible for expeditious selecting suppliers and executing Purchase Requisitions and Purchase Orders for materials, components, sub-assemblies, assemblies, machinery, equipment, tools, supplies, and / or services necessary for the operation and deployment of PsiQuanum's Linear Optical Quantum Computer. This role will be responsible for driving short lead-times, on-time delivery, cost reduction, while building strong supplier relationships. As then Engineering and NPI Buyer, you will be negotiating with suppliers, develop strategic plans for sourcing material, reporting on delivery, analyzing supplier performance, expediting material, and sourcing parts from appropriate suppliers. Responsibilities: Execute the purchase of Engineering and NPI goods, materials, components, sub-assemblies, assemblies, equipment, and / or services in line with specified cost, quantity, quality, and delivery targets. Monitor shipments to ensure timely delivery and resolve problems related to undelivered goods. Review purchase requests for goods and services for compliance to PsiQuantum procedures and policies, and then prepare and issue Purchase Orders. Evaluate suppliers based on price, quality, selection, service, support, availability, reliability, delivery, and production capabilities. Act as an interface between suppliers and other relevant departments on purchasing processes and new projects and activities. Prepare reports and updates as and when required. Work closely with others in the Supply Chain team and ensure the continuous improvements of quality, service, and cost. Negotiate pricing, vendor agreements and contracts, terms, and review opportunities to cost savings and quality improvements utilizing negotiation and procurement best practice tools and methods. Solicit RFQ, RFP, and quotes for review / analysis process. Build, maintain and manage supplier relationships and keep up good communications. Ability to compile data and perform analysis relating to supplier performance and capabilities to enable evaluation and qualification in the supply chain process. Contact suppliers to resolve price, quality, delivery, or invoice issues. Other duties and responsibilities as assigned. Experience/Qualifications: Bachelor's Degree in Supply Chain, Operations Management, General Business, or similar field. 5+ years' experience working in procurement, supply chain or related role in an R&D or high-tech environment. Strong negotiation and expediting experience. Project management and schedule management skills desired. Strong problem-solving skills, organizational skills, and attention to detail. Experience in a fast-paced and demanding start-up environment preferred. Experience with ERP system, NetSuite preferred. Familiar with procurement tools and processes. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $115,000-$131,000 USDBay Area Pay Range $155,000-$170,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: This position is an hourly position to support multiple manufacturing activities related to buuil and assembly of components and utilize machines in the process. Support build products by assembling parts and componenents according to engineering specifications. Would require work on a manufacturing line, receiving batches of smaller parts to integrate into a complete product. Perform some repair, alignment or calibration. Will train to operate cryogenic test systems aand room temperature. Support lab, cleanroom operations and maintenance activities additional duties as assigned Responsibilities: Perform material inventory as required. Able to work overtime and weekend as required. Support sub-assembly testing. Install sub-assembly into cryostat. Cleave and Splice Fiber Opticas Cables. Utilize hand tools and small parts such as screws, welds and press fits to assemble equipment and connect circuits between individual pieces. Update MES (manufacturing execution system) by generation transactions for all work completed. Create and submit a daily pass-down of all activities and results during shift. Communicate with others when help needed during the shift with manager, other operation team and/or engineering team. Ability to work independently with limited direction. Demonstrated ability to juggle multiple priorities. Demonstrated interest in PsiQ's mission and vision for quantum computing, with an ability to contribute in a start-up environment consistent with PsiQ's values of communication, collaboration, respect, results and challenge. Read and follow manufacturing sub assembly instructions. Experience/Qualifications: Experience in operating tooling. Requires minimum supervision. Able to inspect own work and perform quality assurance and inspect their own work and the work of their team. Able to follow instruction and provide recommendations and improvements. Maintain safe work environment. At least 2 years of related experience in a semiconductor, optical, or R&D test position. Strong attention to detail, ability to follow procedures, and take initiative to solve problems. High dexterity working with small components using precision tools and instruments. Proficiency with MS Office software and Windows/Windows applications. Physical agility and manual dexterity, specific knowledge of safe material handling (able to lift 50lbs). Willingness to "wear multiple hats", perform a wide range of different tasks, utilize various tools to support engineering R&D and operational efforts. Demonstrate excellent communication skills both verbal and written. High school diploma or 4 years equivalent experience. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. Bay Area Only Pay Range$27-$34 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: PsiQuantum's applications team is uniquely focused on algorithms in the fault tolerant regime and is very tightly integrated with quantum architecture development. Within that team, the role of a quantum applications software engineer is to design, build and deploy tools which drive the development of quantum applications for solving the world's most pressing problems. As a crucial member within the team, a quantum application software engineer's job is to work closely with quantum applications architects and engineers to develop software toolkits and workflows, without which the team could not do their job. Such tools include (but are not limited to): quantum simulators, quantum resource estimators, quantum circuit compilation, and domain-specific quantum application integration. This work takes quantum algorithms from concept to reality, may involve close collaboration with external partners on specific use cases, and directly enables the discovery of both new quantum application use-cases and novel algorithmic techniques. Responsibilities: Lead the design, development, and deployment of quantum applications software tools to support both internal and external users. Maintain, service and upgrade a high-quality codebase supported by a fast and reliable simulation infrastructure. Work closely with internal and external partners and other members of the quantum applications team to design, implement and analyze quantum algorithms for real-world use cases. Assist with full system analysis to evaluate and optimize resource requirements for fault tolerant computations. Assist with the optimization of quantum algorithms at the subroutine, circuit, and compiled gate-set level. Experience/Qualifications: Graduate degree in Physics, Math, or Computer Science or equivalent required (MSc or PhD). Practical experience in quantum computing, programming quantum applications, or quantum circuit compilation. 5+ years professional experience programming and releasing production code in Python, C++, or similar languages. Experience with quantum algorithms or compiling in the regime of fault tolerant gates preferred. Experience with deployment of code in distributed environments, cloud application development, and RESTful API-driven architectures. A results-driven “doer”, preferably with experience in a high-throughput, rapid-delivery work environment. A problem solver, with an analytical mindset. Proven team player with an ability to work effectively across departments, sites, and time zones. Ability to work independently and contribute in fast-moving start-up environment. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $140,000-$160,000 USDBay Area Pay Range $170,000-$185,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: PsiQuantum is seeking an experienced Director of Equipment Engineering to lead the bring-up, installation, and commissioning of next-generation quantum computing hardware. This role will be responsible for end-to-end delivery of complex systems, including cryostats, vacuum infrastructure, and electronic racks, working closely with internal engineering teams, facilities, and external equipment suppliers. The ideal candidate brings deep experience in vacuum systems, manufacturing start-ups, and facility-integrated equipment, with strong technical project management and supplier leadership skills. Prior cryostat experience is a plus but not required. Responsibilities: Lead the bring-up and commissioning of the equipment supporting the next generation of Quantum Computing hardware. Own equipment project management from specification through installation, acceptance, and operation. Serve as the primary technical and programmatic interface to external equipment suppliers. Coordinate equipment installation with facilities, EHS, manufacturing, and R&D teams. Develop and execute installation, qualification, and commissioning plans. Establish equipment documentation and readiness plans to support manufacturing start-up and scale-up. Identify technical and schedule risks and drive mitigation strategies. Experience/Qualifications: Required Qualifications. Bachelor's degree or higher in Mechanical Engineering, Electrical Engineering, Physics, or related field. 10+ years of experience in equipment engineering or hardware bring-up. Strong experience with vacuum systems (UHV/HV). Experience supporting manufacturing start-ups. Experience managing supplier-delivered capital equipment. Excellent project management and leadership skills. Preferred Qualifications: Experience with cryogenic systems or cryostats. Background in semiconductor, quantum, or photonics environments. Experience scaling equipment from prototype to production. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $175,000-$190,000 USDBay Area Pay Range $225,000-$250,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: *We are currently only reviewing applications of candidate's that have their Ph.D. or are currently enrolled in a Ph.D. program. Quantum architecture internships offer a chance to work in cutting edge research to move quantum computing from a theoretical concept to a real-world technology. As an intern you will work with our quantum architecture team to contribute to the development of a full-stack quantum computing architecture. Topics can include theory and modelling of linear optical networks, fusion-based quantum computing, fault tolerance, decoding methods, logical architecture, simulation and modeling methods. Internships take place through ought the year with durations from 3 to 6 months. We offer placement opportunities in Palo Alto, California (United States), Brisbane (Australia) as well remote positions. Location options will be dependent on the internship project topic. The internship role requires a challenging mix of creativity, analytical skills, and knowledge in one of the above areas. Enthusiasm for quantum computing is essential! Responsibilities: Develop and study methods for fault-tolerant FBQC. Project topics could include: linear optical networks, FBQC protocols, quantum error correcting codes, decoding methods, simulation and modelling methods Model the origin and propagation of errors. Simulate and benchmark different protocols. Document and communicate results. Experience/Qualifications: Degree in Physics, Math or Computer Science or equivalent required. Currently studying for, or completed a postgraduate degree related to linear optics, fault tolerance or another aspect of quantum computing. Knowledge of quantum information is required. Familiarity with some of the following is desirable: quantum networks, graph states, stabilizer methods, quantum error-correcting codes, linear optical quantum computing, error modelling, graphical calculus (e.g, tensor networks, ZX calculus). Experience programming in Python, C++ or similar languages. Competent use of collaborative software development tools (e.g., GitHub) is desirable. A creative and adaptable approach to problem solving. Ability to work effectively in a highly collaborative team. Education level COMPLETED Hourly Rate Housing/Commuter Stipend Bachelors: In Process $27.50 Variable based on permanent residency location Bachelor's Degree $31.00 Variable based on permanent residency location Master's: 1st Year $36.00 Variable based on permanent residency location Master's Degree $40.00 Variable based on permanent residency location PhD: In Process $44.00 Variable based on permanent residency location PhD: Near Completion $47.00 Variable based on permanent residency location PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies.

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today's most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more. PsiQuantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier-1 semiconductor fabs such as GlobalFoundries where we leverage high-volume semiconductor manufacturing processes, the same processes that are already producing billions of chips for telecom and consumer electronics applications. We also benefit from the quantum mechanics reality that photons don't feel heat or electromagnetic interference, allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity. In 2024, PsiQuantum announced two government-funded projects to support the build-out of our first Quantum Data Centers and utility-scale quantum computers in Brisbane, Australia and Chicago, Illinois. Both projects are backed by nations that understand quantum computing's potential impact and the need to scale this technology to unlock that potential. And we won't just be building the hardware, but also the fault tolerant quantum applications that will provide industry-transforming results. Quantum computing is not just an evolution of the decades-old advancement in compute power. It provides the key to mastering our future, not merely discovering it. The potential is enormous, and we have the plan to make it real. Come join us. There's much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey! Job Summary: PsiQuantum's Quantum Applications Software Team is uniquely focused on building a world-class software environment for quantum application developers. These tools allow quantum applications developers to find, build, utilize, optimize and visualize large-scale quantum algorithms applied to solve classically-intractable problems. The primary role of the Quantum Applications Software Quality Engineer (QASQE) is to ensure that these tools meet the high standards expected by external users by implementing robust quality assurance processes. The QASQE will be responsible for designing, developing, and executing comprehensive testing strategies, including test plans, test cases, and automated tests, to validate the functionality, performance, and usability of the PsiQuantum application software stack. They will collaborate closely with software developers, product managers, and domain experts to ensure quality is integrated throughout the software development lifecycle. Responsibilities: Develop and execute test plans: Create detailed test plans and test cases for quantum applications software tools, covering functional, performance, usability, and security aspects. Implement test automation: Design, implement, and maintain automated testing frameworks and scripts using appropriate tools and languages. Collaborate with development teams: Work closely with developers to understand software features and specifications, ensuring comprehensive test coverage. Integrate testing into CI/CD pipelines: Incorporate automated tests into Continuous Integration/Continuous Deployment pipelines to enable continuous testing and rapid feedback. Identify and report defects: Document and track software defects using issue-tracking systems, providing clear and actionable reports to the development team. Ensure compliance with quality standards: Advocate for and ensure adherence to software quality standards and best practices throughout the development process. Assess software tools across multiple domains: Evaluate tools for quantum simulation, algorithm programming, compilation and optimization, resource estimation, and more. Provide technical guidance: Offer insights and recommendations on tool improvements, feature enhancements, and potential integrations with other technologies. Stay current with industry trends: Keep abreast of the latest developments in quantum computing and software quality engineering to apply best practices. Document and communicate findings: Prepare comprehensive reports and presentations on testing activities, results, and quality metrics for stakeholders. Experience/Qualifications: Education: Bachelors in a related technical area of study, such as Computer Science, Physics, Engineering, Maths, Chemistry, etc., required; a postgraduate degree (Masters or PhD) is preferred Technical expertise: 3+ years of hands-on experience in software quality assurance, including test planning, execution, and automation. Quantum computing expertise and knowledge: 3+ years of hands-on experience using, designing, and implementing quantum application software tools; familiarity with quantum computing concepts and quantum programming languages is highly desirable. Testing methodologies: Proficiency in software testing methodologies, including unit, integration, system, and acceptance testing. Automation skills: Experience with test automation frameworks (e.g., pytest, Selenium) and scripting languages (e.g., Python). CI/CD familiarity: Knowledge of Continuous Integration/Continuous Deployment tools and processes. Programming skills: Strong programming abilities in relevant languages (e.g., Python, C++). Analytical mindset: Ability to critically evaluate and analyze software tools, with strong problem-solving skills. Attention to detail: Meticulous approach to identifying issues and ensuring software quality. Communication skills: Excellent verbal, written, and presentation abilities. Team collaboration: Proven ability to work effectively across departments, sites, and time zones; a team player who contributes positively to the work environment. Adaptability: Ability to work independently and thrive in a fast-moving start-up environment with a results-driven approach. Results-driven: A results-driven “doer”, preferably with experience in a high-throughput, rapid-delivery work environment. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $120,000-$165,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: The NPI Materials Program Manager will support PsiQuantum's Engineering and Operations team to drive supplier selection and on-boarding for pre-alpha, alpha, pre-beta, and beta builds; to track, negotiate, and drive down costs; to help track shortages and expedite deliveries; to help analyze if and when builds will be done internally or outsourced to a supplier. We are looking for an individual with experience in managing suppliers and supply chains in a technology environment, with particular experience in New Product Introduction, supporting Engineering builds, identifying and developing new suppliers, negotiating cost, and tracking build and release status of systems. Experience in cryogenics, electro-optical assemblies, and / or semiconductor wafer manufacturing is a plus. Responsibilities: Negotiate delivery, pricing, and other contract terms with key technology suppliers. Buildup, oversee, and project manage builds of specific engineering builds. Identify and select suppliers, in partnership with engineering, for key technologies sub-systems, and conduct screening and onboard. Expedite delivery of components as necessary to achieve project milestones. Experience/Qualifications: Bachelor's Degree in a business or technical field, MBE or ME of value. 10 years working in Supply Chain in technology driven company, or 15 years overall in Supply Chain; at least 5 years experience working in New Product Introduction. Demonstrated business acumen in managing trade-offs for technical supplier selections. Successful ramp up of small and/or immature supply chains. Contract negotiation and management experience. Strong project management and problem solving skills PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $130,000-$145,000 USDBay Area Pay Range $155,000-$170,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: We are looking for a hands-on MES Integrator to support the implementation and maintenance of Manufacturing Execution System (MES) solutions across our production and R&D environments. This role will report into Operations and work closely with engineers, scientists, and operations staff to ensure MES tools are configured, integrated, and used effectively. As an MES Integrator, you will focus on system setup, user training, process rollout, and ongoing support. You will play a key role in enabling teams to use MES platforms to improve quality, traceability, and efficiency on the production floor and in R&D. Responsibilities Assist with MES implementation and rollout in production and R&D environments. Train and support end users, including operators, engineers, and technicians, on MES tools and workflows. Work with vendors and internal teams to qualify MES solutions and work with the technical team to adapt them to evolving needs. Help integrate MES with ERP, SCADA, PLC, and other manufacturing systems in collaboration with the technical team. Maintain documentation, training materials, and SOPs to support adoption and compliance. Troubleshoot MES-related issues and assist in resolving system and workflow problems. Support standardization of MES workflows and data models under guidance from senior staff. Experience / Qualifications 3+ years of experience in MES implementation, manufacturing systems, or process engineering. Understanding of manufacturing workflows and digital systems used in production environments. Familiarity with MES platforms and their integration with enterprise systems (ERP, SCADA, PLC). Strong communication and teamwork skills; able to work effectively with both technical and non-technical stakeholders. Experience providing training or user support for manufacturing software. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $95,000-$120,000 USDBay Area Pay Range $120,000-$140,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: PsiQuantum is seeking a Senior High-Speed Photonics Engineer to help develop active components and circuits for the world's first fault-tolerant quantum computer. The candidate will independently own the design, modeling, testing, and data analysis of active photonic devices and circuits. The Senior Active Photonics Engineer will collaborate closely with teams across PsiQuantum-including electronics, manufacturing, test, packaging, and system validation-to achieve these goals. A successful candidate is expected to have hands-on experience and knowledge in active photonic technologies such as electro-optic phase shifters, switches, modulators, and related components. Responsibilities: Design, simulate, and optimize novel integrated photonic devices and photonic integrated circuits for quantum computing. Take a leading role in photonic tapeouts, including hands-on layout, DOE and circuit design, planning, and interfacing with stakeholders (e.g., packaging teams or electronic driver designers). Collaborate with our dedicated test team to Plan and execute automated high-volume tests Develop new test methods when needed Work with assembly test engineers to help plan and execute assembly-level characterization. Analyze measurement data and interpret analysis results to understand and improve components and circuits. Develop and implement new analysis methods as necessary. Collaborate with photonic engineers, test engineers, materials scientists, electronic engineers, process engineers, and packaging engineers to build and characterize high-performance photonic chips and assemblies. Mentor junior staff members Experience/Qualifications: MS or PhD in electrical engineering, applied physics, optical engineering, or related discipline. Minimum 3+ years of industrial experience (this does not include academic experience) in integrated photonics technologies, including Deep expertise in integrated photonic devices-including both passive and active components-with a strong focus on electro-optic phase shifters and modulators (e.g., in thin-film lithium niobate, BTO, doped silicon, or III-V materials such as InP, GaAs, AlGaAs, InGaAsP); experience with high-speed operation (10 GHz bandwidth and beyond) is a strong plus Experience in the design and modeling of photonic and electro-optic components using industry-standard tools such as Ansys Lumerical, Tidy3D, COMSOL Multi-physics, Meep, etc. Knowledge in modeling of photonic circuits (e.g using Lumerical Interconnect or SAX) is a plus. Knowledge RF concepts, signal integrity and experience with simulation tools such as HFSS and ADS is a plus. Experience leading photonic tapeouts and understanding of the foundry process. Photonic layout experience (using e.g. IPKISS, GDSFactory, etc.) Understanding or hands on experience with photonic packaging is a plus. Understanding of photonic-electronic interfaces (drivers, TIAs, etc.) is a plus. This role does not involve hands-on experimental work, but it does require deep expertise in the characterization of integrated passive and active photonic components. Familiarity with high-speed characterization techniques-such as S-parameter measurements and large-signal time-domain analysis of active photonic devices-is a strong plus.Proficient in programming language such as Python and Matlab. Strong data analysis skills, including visualization and making data-driven design decisions. Collaborative in a multi-disciplinary startup environment. Ability to work independently with limited direction. Experience in project planning and management. Proven team player with an ability to work with local and remote team members. Excellent verbal and written communication skills with an ability to communicate effectively to various audiences. Strong critical thinking, creative, innovative, analytical, and detail oriented problem-solving skills. [We are open to adjusting the compensation to experience level] PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $150,000-$185,000 USDBay Area Pay Range $170,000-$202,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: Join PsiQuantum's Strategy & Central Business Operations team in a critical supporting role, contributing to high-impact projects that span corporate strategy, executive operations, cross-functional initiatives, and organizational effectiveness. This role is ideal for candidates eager to work alongside senior leaders and gain exposure to a wide range of strategic and operational topics. Responsibilities: Corporate & Functional Strategy Support development of company strategy together with CEO, founders, and executive team including defining company priorities and resource allocation. Partner with CEO, CBO, and functional leaders to frame and answer key strategic questions. Help identify issues as they arise in the organization and assist in developing best paths to resolution Executive Enablement & Strategic Alignment Help drive clarity and alignment across execs and functional leads on strategic priorities and company goals. Provide analytical and operational support to senior leaders to enable data-driven decision-making. Support the organization and facilitation of leadership offsites (Exec, Founders, CBO Office) and strategic planning sessions. Support preparation for high profile speaking engagements and critical stakeholder meetings. Cross-Functional Program Leadership Collaborate on special projects and company-wide initiatives that span across Sales, Marketing, Product e.g., EU, Gulf, Qlimate, company values. Participate in cross-functional workstreams - from market expansion to product GTM - ensuring timely, aligned, and high-quality outcomes e.g., driving series-e-pmo, key announcements. Help identify gaps and inefficiencies across the org and work proactively to resolve blockers. Organizational Effectiveness Assist in maintaining and improving operating cadences such as KPI reviews and quarterly planning. Help build dashboards, templates, and systems to streamline information flow and enhance exec visibility. Support coordination across People, Finance, and functional. Experience/Qualifications: 2-5 years of experience in management consulting or investment banking at a top-tier firm. Strong analytical and problem-solving skills, with the ability to break down complex issues and develop actionable recommendations. Proven track record of supporting high-impact projects in fast-paced, ambiguous environments. Exceptional communication skills - able to craft clear, concise materials and effectively engage with senior stakeholders. Highly organized and detail-oriented, with strong project management capabilities. Demonstrated interest in technology, innovation, or deep tech sectors; prior exposure to deep tech, semiconductors, computational chemistry or other scientific domains a plus but not required. Bachelor's degree in a technical, business, or quantitative field (e.g., engineering, physics, economics, finance); advanced degree a plus but not required. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $140,000-$165,000 USDBay Area Pay Range $165,000-$185,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: The mission of PsiQuantum's Principal Hardware Design Engineer role is to support the Electronics team by owning hardware designs integral to the underlying system of the quantum computer. This engineer will collaborate in cross-functional teams of thermal, mechanical, firmware, optical engineers. The designs will meet the requirements of the overall system architecture and physical framework of the quantum computer. Responsibilities: Design, create schematics, and oversee PCB layout of analog and digital circuitry consisting of but not limited to high-speed transceivers, 10+ Gbps electrical and optical data links, FPGA's, microcontrollers, clock distribution, and power distribution. Ensure signal integrity and EMI suppression is accounted for in all designs. Design and create test set-ups for testing of electro-optic modules. Characterize, optimize, and debug analog, digital, and electro-optic circuitry using equipment such as mixed signal & sampling oscilloscopes, vector network analyzers, signal generators, multimeters, DC power supplies. Develop software to drive measurements. Analyze data and extract key performance parameters. Maintain detailed documentation of hardware designs, test results, and design changes. Software tools: Orcad Schematic Capture and Allegro PCB Layout C++, Python, RTL (VHDL or Verilog) Keysight PathWave ADS Microsoft Office Experience/Qualifications: 12 years of experience with a Master Degree. 8-15 years of experience with a B.S. Degree. Results oriented. Delivers on commitments. Attention to detail. Data-driven in decision-making. Strong problem-solving skills. Proven team player with an ability to work effectively across departments, sites, time zones in direct and matrix team environments. Excellent verbal and written communication skills with an ability to communicate effectively to a variety of audiences ranging from senior leadership and technical experts to entry-level staff. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $230,000-$250,000 USDBay Area Pay Range $240,000-$260,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: The Senior Director of Packaging Engineering will manage a team of opto-mechanical package design engineers and be responsible for subassembly and BOX designs with quality for RD and volume system integration and deployment at PsiQ QC (quantum computer) sites. This role requires good engineering disciplines in thermal, mechanical and optical designs and associated quality standard, a strong “can do” attitude in a fast-paced environment, problem-solving, excellent communication with teams across multiple disciplines. Responsibilities: Design subassemblies and boxes for QC sub-systems with electronics and silicon photonics chips for both cryogenic and room temperature environment in vacuum systems. Establish and maintain design flow, conduct design reviews with necessary mechanical, thermal, structural, stress analysis from simulation and measurement - to meet design target and requirement by sub-system team. Work with cross functional team and suppliers on DFM, FMEA to finalize design, and support process team to finalize assembly process flow; Release design document in the system with change controls. Work with supply chain and suppliers to deliver and verify first article piece parts and provide reports vs. design. Support process team of the initial sub-assembly build and related verification per FMEA and DFM; and follow on piece part quality control. Manage budget, capex, hiring per AOP including associated CAD tool licenses and machines. Project-managing and deliverable, execution milestone, schedule tracking for internal and external suppliers. Experience/Qualifications: Experience working within small startup and/or large companies managing opto-mechanical packaging teams with proven track record to bring product in volume (e.g in datacom, telecom optical communication industry). Experienced with optical and photonics systems; Cryogenic system experience is a plus. Familiar with key opto-mechanical packaging supplier base and the quality system. Demonstrated ability to manage short deadlines, and to follow a disciplined work process. Able to work in a fast-paced environment. Ability to build relationships with multiple groups with strong interpersonal, communication skills to be able to work with all levels of the organization from the founders of the company to techs. A lead by example person, lead from the front attitude when all hands-on-deck situations arise, get involved in day-to-day tasks to assure peak performance and safe work environment for everyone Master's degree or higher in an applicable engineering discipline, such as Mechanical Engineering, Optical Engineering, or Applied Physics. 15+ years of experience applying engineering principles to solve complex thermal, mechanical and optical problems. Proficient in 2D & 3D packaging tools (Solidworks), thermal, structure and stress simulation (Ansys) and measurement tools with hands-on experience. Experience in design, analysis and assembly of subsystems, NPI and manufacture support including supplier management. Excellent written and verbal communication skills; Self-starter. Demonstrated strong analytical and problem-solving skills. Ability to provide technical leadership in ambiguous situations. Strong management skills. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $275,000-$300,000 USDBay Area Pay Range $275,000-$300,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: We are seeking a Silicon Photonics Test Engineer to develop, maintain, and execute automated optical/electrical test systems for wafer-level photonic devices. The ideal candidate will have hands-on experience with photonics testing, data analysis, and test automation, and a solid understanding of optoelectronic device physics and semiconductor processes. Responsibilities: Design and perform optical and electrical characterization of silicon photonic components (e.g., modulators, detectors, filters, couplers). Develop and maintain automated test setups for wafer-level and die-level testing. Interface with design, process, and packaging teams to define test requirements, performance metrics, and data formats. Analyze large datasets to extract key device parameters and identify performance trends or process drifts. Collaborate with software engineers to implement data acquisition and control in Python, MATLAB, or similar frameworks. Perform calibration, alignment, and validation of optical test stations. Document test methodologies, standard operating procedures (SOPs), and support transfer of test processes to production. Contribute to the continuous improvement of measurement accuracy, throughput, and system reliability. Experience/Qualifications: Required Qualifications B.S. or M.S. in Electrical Engineering, Physics, Optics, Photonics, or a related field. 2-5 years of experience in photonics testing or optical characterization (academic or industry). Hands-on experience with optical and electrical instrumentation, including power meters, tunable lasers, polarization controllers, photodiodes (PDs), optical vector analyzers, VNAs, SMUs, and optical/electrical switches. Proficiency in data analysis and automation scripting, especially in Python. Familiarity with semiconductor wafer probing, electrical test systems, and instrumentation control interfaces (e.g., GPIB, VISA, TCP/IP). Solid understanding of silicon photonics device physics and integrated optics. Demonstrated problem-solving ability, strong documentation skills, and effective team collaboration. Preferred Qualifications Experience with wafer-level photonic probing or automated probe stations. Knowledge of optical packaging, fiber alignment, and coupling techniques. Familiarity with statistical data analysis, yield tracking, and process control methodologies. Experience with database systems (e.g., SQL) or automated test data pipelines. Experience using version control systems (Git) and implementing CI/CD pipelines for test automation. Proficiency with optical simulation tools such as Zemax (or Lumerical/COMSOL). Experience developing or maintaining production-grade test management systems. Key Competencies Strong experimental and analytical mindset. Excellent cross-disciplinary communication, especially across optical, electrical, and software domains. Self-motivated, detail-oriented, and capable of working independently. Comfortable operating in fast-paced R&D and production environments. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $104,500-$121,000 USDBay Area Pay Range $125,000-$148,000 USD

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today's most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more. PsiQuantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier-1 semiconductor fabs such as GlobalFoundries where we leverage high-volume semiconductor manufacturing processes, the same processes that are already producing billions of chips for telecom and consumer electronics applications. We also benefit from the quantum mechanics reality that photons don't feel heat or electromagnetic interference, allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity. In 2024, PsiQuantum announced two government-funded projects to support the build-out of our first Quantum Data Centers and utility-scale quantum computers in Brisbane, Australia and Chicago, Illinois. Both projects are backed by nations that understand quantum computing's potential impact and the need to scale this technology to unlock that potential. And we won't just be building the hardware, but also the fault tolerant quantum applications that will provide industry-transforming results. Quantum computing is not just an evolution of the decades-old advancement in compute power. It provides the key to mastering our future, not merely discovering it. The potential is enormous, and we have the plan to make it real. Come join us.There's much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey! Job Summary: The Principal Electro-Optics Systems Engineer is a technical lead role in which he/she drives and own design and execution of fiber optic systems. This role is responsible for leading from early development to productization of optical network and communications, including design, validation and woking with vendors to deliver full optical development for large quantum systems. Responsibilities: Technical Lead of full optical design and distribution network for large systems & multiple systems. Own, define & develop design requirements and document requirements for system level behaviors. Work effectively with cross functional team: quantum architect, electronics, mechanical and thermal teams and assess how to negotiate for tradeoffs and meet requirements. Work with vendors and evaluate advanced fiber optic components, and qualify such components for use in quantum computing applications. Assess how to push technical boundaries to meet tight optical specs (optical loss and thermal stability). Lead & execute designs, development , debug for optical communication for racks. Lead build and test prototypes, maintain a BOM. Lead validation tests plans & deliver proof of concept to productization, working closely with the system build and validation team. Deliver electro-optical network for full quantum systems in a fast paced environment. Some Python scripting, calling Controls SW APIs / drivers to control lab equipment and proprietary systems. Write and maintain documentation of system performance. Clear communication and technical lead engineer teams Experience/Qualifications: M.S. or PhD in Physics, Optical or Electrical Engineering with 10+ years industry experience. >5+ years experience designing, validating and testing optical systems. Expertise in cross-functional product development. Systems experience working with complex products. Experience designing fiber optic systems, working with photonic integrated circuits (PICs), fiber networking. Experience working with optical test equipment including power meters, optical backscatter reflectometers (OBR), optical spectrum analyzer (OSA). Experience working with instrumentation used in the photonics and/or the electronics industry. Experience with software controls in Python. Experience developing test methods and optimization, tuning algorithms. Experience in product lifecycles, transitioning from R&D to product development. Strong organizational skills, excellent communication skills, attention to detail and ability to multitask. Strong critical thinking, creative, innovative, analytical, and detail oriented problem-solving skill. Ability to lead and work in a fast paced environment & collaborate with cross functional team. Preferred Skills & Experience: Industry experience with electro-optics systems. Industry experience with optical systems in vacuum. Managed and lead on how to do large optical routing and management. Understanding of photonics & non-linear optics, thermal stability. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $230,000-$260,000 USD

Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a real quantum computer. PsiQuantum is on a mission to build the first real, useful quantum computers, capable of delivering the world-changing applications that the technology has long promised. We know that means we will need to build a system with roughly 1 million qubits that supports fault tolerant error correction within a scalable architecture, and a data center footprint. By harnessing the laws of quantum physics, quantum computers can provide exponential performance increases over today's most powerful supercomputers, offering the potential for extraordinary advances across a broad range of industries including climate, energy, healthcare, pharmaceuticals, finance, agriculture, transportation, materials design, and many more. PsiQuantum has determined the fastest path to delivering a useful quantum computer, years earlier than the rest of the industry. Our architecture is based on silicon photonics which gives us the ability to produce our components at Tier-1 semiconductor fabs such as GlobalFoundries where we leverage high-volume semiconductor manufacturing processes, the same processes that are already producing billions of chips for telecom and consumer electronics applications. We also benefit from the quantum mechanics reality that photons don't feel heat or electromagnetic interference, allowing us to take advantage of existing cryogenic cooling systems and industry standard fiber connectivity. In 2024, PsiQuantum announced two government-funded projects to support the build-out of our first Quantum Data Centers and utility-scale quantum computers in Brisbane, Australia and Chicago, Illinois. Both projects are backed by nations that understand quantum computing's potential impact and the need to scale this technology to unlock that potential. And we won't just be building the hardware, but also the fault tolerant quantum applications that will provide industry-transforming results. Quantum computing is not just an evolution of the decades-old advancement in compute power. It provides the key to mastering our future, not merely discovering it. The potential is enormous, and we have the plan to make it real. Come join us. There's much more work to be done and we are looking for exceptional talent to join us on this extraordinary journey! Job Summary: We are seeking a technically adept and hands-on Senior Cryogenic Engineer to lead and support the installation, integration, commissioning, and operation of multiple helium cryoplants and associated cryogenic systems-particularly in support of quantum computing applications. The ideal candidate will possess a unique combination of strategic program and project management expertise, exceptional troubleshooting abilities, and deep technical knowledge in vacuum systems and helium cryogenics. Proven experience with process instrumentation and control systems is essential. This role requires excellence in both field execution and system-level design leadership. Responsibilities: Coordinate and supervise the installation, commissioning, and operation of two helium cryoplants and related infrastructure. Optimize helium process and system control strategies. Integrate cryoplants with cryogenic distribution systems and cryostats used in quantum computing environments. Provide expert-level troubleshooting of cryogenic systems, including instrumentation faults, vacuum failures, and control logic anomalies. Lead the commissioning of cryoplants and cryostats, including system calibration, leak checking, and vacuum pumping procedures. Lead and manage operational teams, including training and guiding operators during startup, maintenance, and fault recovery. Develop maintenance strategies for cryoplants and support equipment. Participate in FATs and SATs, and lead the commissioning of process automation and control systems, including sensor validation and PLC tuning. Spearhead the development and review of P&IDs, and participate in operability and HAZOP reviews for safety and performance assurance. Maintain high-performance vacuum systems, identify and repair leaks. Experience/Qualifications: M.Sc. in Mechanical, Electrical, or Chemical Engineering. 5+ years of hands-on experience with cryogenic systems, including helium refrigeration, LNG, superconducting magnets, or similar technologies. Proven ability to troubleshoot complex cryogenic and process systems, including instrumentation, vacuum integrity, and control issues. Strong working knowledge of PLC-based industrial control systems and process instrumentation (pressure, flow, temperature, vacuum sensors). Ability to provide technical leadership and resolve issues in high-pressure, ambiguous situations. Familiarity with design and implementation of control/instrumentation systems for industrial or scientific facilities. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $150,000-$180,000 USDBay Area Pay Range $170,000-$200,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: We are seeking an experienced IT Infrastructure Manager to lead and maintain our IT systems across a global footprint. This role is responsible for achieving and maintaining operational resilience in network infrastructure, data centers, and enterprise platforms, with a strong emphasis on enabling the business. Responsibilities: Network and Data Center Manage global network architecture (LAN, WAN, VPN), ensuring availability, reliability, and performance across offices and remote teams. Build and maintain on-premises server rooms and data center facilities, working cross-functionally to address space, power, and cooling requirements. Supervise all data center operations, ensuring uptime, compliance, and efficiency in hardware and cooling infrastructure. Compute and Storage Deploy and maintain hardware to address physical server and storage needs. Maintain and automate virtual infrastructure and platforms, ensuring optimal performance and resource allocation. Collaborate cross-functionally to integrate hybrid-cloud infrastructure, leveraging platforms such as AWS, Azure, or GCP. Infrastructure Resilience Design and implement enterprise-wide Disaster Recovery technology and processes. Ensure DR readiness through scheduled audits, simulations, and recovery tests with measurable outcomes. Act as the primary infrastructure liaison during security incidents, coordinating response actions and post-incident reviews. Work with the Information Security and Physical Security teams to ensure organizational security goals are achieved. Monitoring & Performance Implement comprehensive monitoring of the environment to ensure the company's availability, performance, and capacity objectives are achieved. Foster a culture of identifying and addressing the root cause of infrastructure issues and putting measures in place to prevent recurrence. Collaboration & Cross-Functional Leadership Collaborate within the IT and Security organization to build and implement a cohesive technology and service roadmap. Partner cross-functionally to identify and address organizational objectives. Lead cross-functional projects in network modernization, hybrid-cloud integration, and zero-trust initiatives. Represent IT Infrastructure in strategic planning meetings, audits, compliance assessments, and executive reviews. Operational Governance Own lifecycle and vendor management for infrastructure assets. Manage infrastructure budgets, procurement cycles, and SLA compliance for third-party vendors and MSPs. Maintain inventory accuracy and lead the enforcement of configuration baselines and asset hygiene. Team Leadership Lead, coach, and grow a high-performing team of infrastructure engineers and support technicians across regions. Foster a high-trust, execution-driven team culture with clear ownership and accountability. Define operational KPIs and ensure team alignment with infrastructure and security goals. Experience/Qualifications: 7+ years of progressive experience in IT infrastructure, with 3+ years in leadership capacity, managing distributed teams. Strong enforcement background in network security, data center resilience, SIEM/SOC collaboration, and incident command. Expertise in hybrid cloud infrastructure, virtualization, and backup/recovery technologies. Hands-on experience managing enterprise firewalls (e.g., Palo Alto, Fortinet), IDS/IPS, and endpoint management platforms. Deep understanding of regulatory and security frameworks (e.g., NIST, ISO 27001, CMMC). Proven ability to enforce technical standards and compliance across IT operations. Excellent organizational, troubleshooting, and communication skills, especially in high-stakes scenarios. Relevant certifications preferred (e.g., CISSP, CCNP, ITIL, CISM, AWS/Azure Certified). PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $130,000-$150,000 USDBay Area Pay Range $170,000-$185,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: At PsiQuantum, we are developing and testing prototype modules that will scale into a datacenter-sized, fault-tolerant quantum computer. Once integrated into the full system, these modules and sub-systems must be regularly calibrated to ensure the reliable production of single photons and entangled states - the foundation of our quantum computing architecture. The System Calibration Engineer will analyze the performance of calibration procedures and oversee their implementation in our control software. This role involves close collaboration with diverse engineering teams and a broad range of technologies, including RF electronics, active photonics, lasers, cryostats, analog mixed-signal hardware, embedded systems, complex data acquisition platforms, and quantum modules. Example projects include calibrating passive and active photonic components, synchronizing optical and electro-optical devices, and optimizing the sequencing and logistics of large-scale system bring-up across thousands of devices. Responsibilities: Analyze calibration procedures to quantify and minimize the effects of errors, noise, and timing overheads, optimizing calibration performance and system stability. Develop prototype software for implementing calibration procedures, including compact models that capture system behavior for planning purposes. Integrate calibration procedures into our calibration routine workflows, ensuring reliability and scalability. Contribute to the development of system-level calibrations of our photonic system that must work reliably across thousands of optical and electro-optical devices. Define and implement metrics to monitor system health and calibration performance. Work closely with software engineers to implement production-quality calibration functions and routines. Support the aggregation and organization of documentation required to calibrate the system from across the company. Collaborate with validation teams to test, debug, and validate calibration procedures and routines. Experience/Qualifications: M.S. or PhD in Electrical Engineering, Optical Engineering, Physics, or a related discipline. Proven ability to independently contribute to complex systems integrating optical electronic, and control software components. Demonstrated experience with some of the following: Active photonics, RF engineering, hardware design Optics, lasers, quantum computation, experimental control software Experience with embedded systems, firmware, RTL, or signal processing is desired, but not required. Extensive experience developing data analysis and experimental control software in python or a similar scripting language. Experience modelling communication or data acquisition systems to optimize system performance. Proven ability to collaborate effectively across disciplines, departments, and time zones. Experience documenting projects, processes, or hardware designs. Excellent verbal and written communication skills with an ability to communicate effectively to a variety of audiences including senior leadership and technical experts. Demonstrated interest in PsiQuantum's mission and vision for quantum computing, with an ability to contribute within a fast-paced start-up environment consistent with PsiQuantum's values of communication, collaboration, respect, results, and challenge. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $120,000-$137,000 USDBay Area Pay Range $135,000-$160,000 USD

PsiQuantum's mission is to build the first useful quantum computers-machines capable of delivering the breakthroughs the field has long promised. Since our founding in 2016, our singular focus has been to build and deploy million-qubit, fault-tolerant quantum systems. Quantum computers harness the laws of quantum mechanics to solve problems that even the most advanced supercomputers or AI systems will never reach. Their impact will span energy, pharmaceuticals, finance, agriculture, transportation, materials, and other foundational industries. Our architecture and approach is based on silicon photonics. By leveraging the advanced semiconductor manufacturing industry-including partners like GlobalFoundries-we use the same high-volume processes that already produce billions of chips for telecom and consumer electronics. Photonics offers natural advantages for scale: photons don't feel heat, are immune to electromagnetic interference, and integrate with existing cryogenic cooling and standard fiber-optic infrastructure. In 2024, PsiQuantum announced government-funded projects to support the build-out of our first utility-scale quantum computers in Brisbane, Australia, and Chicago, Illinois. These initiatives reflect a growing recognition that quantum computing will be strategically and economically defining-and that now is the time to scale. PsiQuantum also develops the algorithms and software needed to make these systems commercially valuable. Our application, software, and industry teams work directly with leading Fortune 500 companies-including Lockheed Martin, Mercedes-Benz, Boehringer Ingelheim, and Mitsubishi Chemical-to prepare quantum solutions for real-world impact. Quantum computing is not an extension of classical computing. It represents a fundamental shift-and a path to mastering challenges that cannot be solved any other way. The potential is enormous, and we have a clear path to make it real. Come join us. Job Summary: The Process Engineer will be responsible for assisting in the module assembly processes and maintenance of typical back-end semiconductor packaging equipment and supporting Process Engineers on the development of key assembly steps leading to R&D and volume system process solutions at PsiQuantum. This role requires hand-on experiences in packaging, processing and equipment handling, a strong “can do” attitude ensuring high-quality standards and precision in all tasks. Your expertise will contribute to delivering exceptional product solutions to our internal and future external customers. Responsibilities: By working with process engineers; fabricate and assemble electro-optical devices, including die attach, wire-bonding and inspection, with a focus on precision and quality. Under the guidance of Process Engineers, co- design and co-develop assembly process flow, and build subassemblies for QC sub-systems with electronics and silicon photonics chips on PCBAs for both cryogenic and room temperature vacuum systems. Lead and manage assembly and testing tools to ensure optimal performance and throughput. Develop and implement “best practice” to enhance product integrity and operational efficiency. Collaborate with cross-functional teams, including engineering and manufacturing, to streamline assembly design and production. Conduct complex troubleshooting and analysis of assembly equipment to resolve technical issues. Document processes, results, deviations from the standard operating procedures and lessons learned, contributing to continuous improvements. Experience/Qualifications: Preferred Skills & Experience: Ability to use data processing tools such as Python and JMP to assist Process Engineers. Demonstrated ability to support short deadline tasks, and to follow a disciplined work process. Able to work in a fast-paced environment. Familiarity with back-end semiconductor assembly processes, testing methodologies and equipment, including die attach, wire-bonding, visual inspection. Excellent analytical and problem-solving skills, particularly in high-pressure environments. Positive attitude and always open to learn new knowledge and operation of new equipment. Good team worker and bring in positive attitude and always ready to help others. Qualifications: Bachelors degree or equivalent experience in engineering, physics, or a related field. 2+ years of experience applying engineering principles to solve complex opto-mechanical assembly process problems. Exposure to photonics sub-assembly with experience in semiconductor packaging and inspection equipment, processes and material system (die attach, wire bonding, optical coupling, flip chip, underfill … etc.). Familiar with key opto-mechanical packaging and assembly equipment and part supplier base and the quality system. Excellent written and verbal communication skills; Self-starter. Demonstrated strong analytical and problem-solving skills. PsiQuantum provides equal employment opportunity for all applicants and employees. PsiQuantum does not unlawfully discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, military or veteran status, marital status, domestic partner status, sexual orientation, genetic information, or any other basis protected by applicable laws. Note: PsiQuantum will only reach out to you using an official PsiQuantum email address and will never ask you for bank account information as part of the interview process. Please report any suspicious activity to *************************. We are not accepting unsolicited resumes from employment agencies. The ranges below reflect the target ranges for a new hire base salary. One is for the Bay Area (within 50 miles of HQ, Palo Alto), the second one (if applicable) is for elsewhere in the US (beyond 50 miles of HQ, Palo Alto). If there is only one range, it is for the specific location of where the position will be located. Actual compensation may vary outside of these ranges and is dependent on various factors including but not limited to a candidate's qualifications including relevant education and training, competencies, experience, geographic location, and business needs. Base pay is only one part of the total compensation package. Full time roles are eligible for equity and benefits. Base pay is subject to change and may be modified in the future. U.S. Base Pay Range $43-$47 USDBay Area Pay Range $52-$55 USD