Post job

Principal engineer jobs in Frederick, MD

- 4,299 jobs
All
Principal Engineer
Systems Engineer
Senior Engineer
Product Engineer
Development Engineer
Design Engineer
Software Engineer
Senior Systems Engineer
Staff Engineer
Research Engineer
Lead Engineer
Principal Software Engineer
Electrical Engineer
Project Engineer
Principal Network Engineer
  • Senior AI/ML Engineer (TS/SCI)

    Vantor

    Principal engineer job in Herndon, VA

    Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. To be eligible for this position, you must be a U.S. Person, defined as a U.S. citizen, permanent resident, Asylee, or Refugee. Note on Cleared Roles: If this position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. We're seeking a Senior AI/ML Solutions Engineer to support mission-driven users working on complex national security challenges. In this agile environment, you'll be part of a small, multi-disciplinary team applying AI/ML and data science to real-world problems and apply them into operations. This role offers direct collaboration with end users and technologists to ensure solutions are impactful, scalable, and mission-aligned. Responsibilities: Design, develop, integrate and deploy AI-driven solutions to extract insights from complex, high-volume datasets offering expertise in AI/ML, Large Language Models (LLM), Generative AL, and/or Natural Language Processing (NLP) Apply statistical and deep learning techniques to support predictive modeling, classification, natural language processing, and pattern recognition Collaborate with analysts, engineers, and mission partners to understand requirements and translate them into robust, data-driven solutions Communicate results and technical concepts through effective visualizations, dashboards, and clear reporting to both technical and non-technical audiences Minimum Qualifications: U.S. citizen with active TS/SCI clearance and polygraph; willing to work onsite 80% or as mission needs dictate. Bachelor's or advanced degree (or equivalent experience) in AI/ML, Data Science, Math, or related technical field. 8+ years of experience in data science, AI/ML, large language models (LLMs), and emerging technologies, including solution architecture, model development, and deployment in complex environments. Proficient in Python, R, and/or Java for machine learning, data processing, and algorithm development; experienced in building robust, scalable solutions for operational deployment. Hands-on experience with machine learning frameworks (TensorFlow, PyTorch, scikit-learn) and tools for model development and operationalization (Jupyter, MLflow, AWS SageMaker) in production environments. Experienced working in Linux-based and hybrid cloud/on-prem infrastructures, deploying and maintaining AI/ML solutions in secure, production-grade environments; strong collaboration and communication skills with distributed teams and stakeholders. Preferred Qualifications: Understanding of commercial and custom AI ML methods, statistical and analytical concepts such as uncertainty modeling, spatial analytics, model evaluation, correlation analysis, and data visualization. Adaptable, solution-oriented mindset with the ability to work independently in fast-paced, dynamic environments Experience working in virtualized Linux environments on secure government infrastructure Background in military or intelligence analysis, or familiarity with IC PED systems, is a strong plus Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate's starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range. The base pay for this position within California, Colorado, Hawaii, New Jersey, the Washington, DC metropolitan area, and for all other states is: $130,000.00 - $200,000.00 Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: ****************************** The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. The date of posting can be found on Vantor's Career page at the top of each job posting. To apply, submit your application via Vantor's Career page. EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.
    $130k-200k yearly 6d ago
  • Reverse Engineer and Offensive Cyber Developer

    Johns Hopkins Applied Physics Laboratory (APL 4.6company rating

    Principal engineer job in Laurel, MD

    Are you passionate about reverse engineering low-level software and/or hardware and developing sophisticated cyber tools? Do you love building cyber capabilities that move from concept to operational deployment? If so, we want you to join our group of offensive cyber experts! We seek experienced reverse engineers and developers who will build inventive cyber capabilities leveraging novel reverse engineering and exploitation techniques. We work in a dynamic, mission-driven environment where our efforts have real-world impact. Collaboration is at the heart of our culture, and we value multidisciplinary perspectives, curiosity, and continuous learning. We encourage our staff to explore new approaches, share knowledge, and deepen their expertise as they take on some of the nation's toughest challenges. As a member of our team, you will... Reverse engineer the software, firmware, and hardware of target systems for potential vulnerabilities Work in teams to modify device firmware and software to perform additional effects or to communicate in alternative ways Operationalize proof-of-concept code by thoroughly testing, documenting, and integrating with sponsor systems Propose promising ideas for internal and external funding opportunities Share and enhance knowledge by clearly articulating ideas through papers and presentations to government decision makers, team members, and senior management Qualifications You meet our minimum qualifications for the job if you... Possess a Bachelor's in Computer Science, Electrical Engineering, Computer Engineering, or other related degree Have at least 2 years of proven experience reverse engineering or developing offensive cyber capabilities Understand operating system fundamentals and internals, exploitation techniques, and mitigations Have development experience in low-level languages such as assembly or C/C++ Have used software or hardware debuggers to debug complex problems Are an outstanding communicator in both written and verbal forms Are able to acquire a Secret level security clearance by your start date and can ultimately acquire a TS/SCI level clearance. If selected, you will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship. You'll go above and beyond our minimum requirements if you... Have a Master's or Ph.D. in Computer Science, Electrical Engineering, Computer Engineering, or related field Have 8+ years of experience reverse engineering or developing offensive cyber capabilities Enjoy prototyping hardware and systems with embedded microcontrollers Have a solid understanding of radiofrequency (RF) concepts Hold an active TS/SCI security clearance About Us Why Work at APL? The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation's most critical defense, security, space and science challenges. While we are dedicated to solving complex challenges and pioneering new technologies, what makes us truly outstanding is our culture. We offer a vibrant, welcoming atmosphere where you can bring your authentic self to work, continue to grow, and build strong connections with inspiring teammates. At APL, we celebrate our differences of perspectives and encourage creativity and bold, new ideas. Our employees enjoy generous benefits, including a robust education assistance program, unparalleled retirement contributions, and a healthy work/life balance. APL's campus is located in the Baltimore-Washington metro area. Learn more about our career opportunities at ****************************** All qualified applicants will receive consideration for employment without regard to race, creed, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, physical or mental disability, genetic information, veteran status, occupation, marital or familial status, political opinion, personal appearance, or any other characteristic protected by applicable law. APL is committed to providing reasonable accommodation to individuals of all abilities, including those with disabilities. If you require a reasonable accommodation to participate in any part of the hiring process, please contact Accommodations@jhuapl.edu. The referenced pay range is based on JHU APL's good faith belief at the time of posting. Actual compensation may vary based on factors such as geographic location, work experience, market conditions, education/training and skill level with consideration for internal parity. For salaried employees scheduled to work less than 40 hours per week, annual salary will be prorated based on the number of hours worked. APL may offer bonuses or other forms of compensation per internal policy and/or contractual designation. Additional compensation may be provided in the form of a sign-on bonus, relocation benefits, locality allowance or discretionary payments for exceptional performance. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. Applications are accepted on a rolling basis. Minimum Rate $100,000 Annually Maximum Rate $227,500 Annually
    $77k-102k yearly est. 5d ago
  • Senior Reverse Engineer / Cyber Capability Engineer

    Johns Hopkins Applied Physics Laboratory (APL 4.6company rating

    Principal engineer job in Laurel, MD

    Are you a reverse engineer who loves to discover how bespoke systems work and how to break them? Are you energized by working with world-class experts to solve the hardest offensive cyber problems? Are you passionate about national security cyber challenges? If so, we want you to join our elite team of reverse engineers at APL! We strive to foster an innovative team environment where engineers can hack the latest technologies to find and exploit vulnerabilities. Our team specializes in software and hardware reverse engineering, vulnerability research, and developing offensive cyber capabilities with a focus on embedded systems. We have custom facilities tailored to specific classes of systems including foreign materiel, telecommunications/network infrastructure, and industrial systems as well as general reverse engineering labs. As a member of our group, you will... Reverse engineer embedded systems and develop innovative exploits Work with government sponsors and operators to build mission-aligned capabilities Explore novel techniques for automating reverse engineering and exploit development Propose groundbreaking ideas for internal and external funding opportunities Mentor early-career teammates in the art and science of reverse engineering Share knowledge by clearly articulating ideas through papers and presentations to team members, APL management, and government decision makers Qualifications You meet our minimum qualifications for the job if you... Have a Bachelor's degree in Computer Engineering, Computer Science, Electrical Engineering, or another field relevant to the duties as described above Have at least 5 years of relevant experience Are skilled with software debuggers and static analysis tools such as Ghidra, IDA, and Binary Ninja Are proficient with one or more programming languages Understand Unix/Linux operating systems and embedded systems development toolchains Love solving puzzles and have experience persevering through technical challenges Hold an active TS/SCI clearance and can ultimately obtain a TS/SCI+Polygraph clearance. If selected, you will be subject to a government security clearance investigation and must meet the requirements for access to classified information; eligibility requirements include U.S. citizenship. You'll go above and beyond our minimum requirements if you... Previously held dynamic technical leadership roles and have demonstrated mentoring experience Have knowledge of advanced vulnerability discovery tools Have experience with hardware debugging interfaces, code security mechanisms and their weaknesses, hardware diagnostic tools, and signal/protocol analysis Have a Master's degree in Computer Engineering, Computer Science or Electrical Engineering Possess an active TS/SCI clearance with full scope polygraph #LI-AG1 About Us Why Work at APL? The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation's most critical defense, security, space and science challenges. While we are dedicated to solving complex challenges and pioneering new technologies, what makes us truly outstanding is our culture. We offer a vibrant, welcoming atmosphere where you can bring your authentic self to work, continue to grow, and build strong connections with inspiring teammates. At APL, we celebrate our differences of perspectives and encourage creativity and bold, new ideas. Our employees enjoy generous benefits, including a robust education assistance program, unparalleled retirement contributions, and a healthy work/life balance. APL's campus is located in the Baltimore-Washington metro area. Learn more about our career opportunities at ****************************** All qualified applicants will receive consideration for employment without regard to race, creed, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, physical or mental disability, genetic information, veteran status, occupation, marital or familial status, political opinion, personal appearance, or any other characteristic protected by applicable law. APL is committed to providing reasonable accommodation to individuals of all abilities, including those with disabilities. If you require a reasonable accommodation to participate in any part of the hiring process, please contact Accommodations@jhuapl.edu. The referenced pay range is based on JHU APL's good faith belief at the time of posting. Actual compensation may vary based on factors such as geographic location, work experience, market conditions, education/training and skill level with consideration for internal parity. For salaried employees scheduled to work less than 40 hours per week, annual salary will be prorated based on the number of hours worked. APL may offer bonuses or other forms of compensation per internal policy and/or contractual designation. Additional compensation may be provided in the form of a sign-on bonus, relocation benefits, locality allowance or discretionary payments for exceptional performance. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. Applications are accepted on a rolling basis. Minimum Rate $102,500 Annually Maximum Rate $290,000 Annually
    $92k-112k yearly est. 4d ago
  • Forward Deployed Software Engineer I

    Vantor

    Principal engineer job in Herndon, VA

    Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. To be eligible for this position, you must be a U.S. Person, defined as a U.S. citizen, permanent resident, Asylee, or Refugee. Note on Cleared Roles: If this position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. Vantor is seeking a mission driven Forward Deployed Software Engineer to support new US Army Programs with novel 3D software solutions. This individual will act as a technical bridge between our engineering teams and end users, integrating our software alongside partner capabilities, engaging with customer environments, learning the systems inside and out, and shaping real-world solutions in direct collaboration with the customer. You'll be hands-on with Vantor's advanced 3D capabilities, integrating and optimizing our technology in new ways to meet the fast-paced, dynamic needs of warfighters prototyping new Army functions. This role demands technical adaptability, strong communication skills, and a proactive mindset to solve challenges in the field and provide immediate feedback to internal teams. Responsibilities: Deploy to CONUS customer locations to support US Army operational needs, training, and mission exercises. Rapidly learn and troubleshoot the Vantor tech stack, with emphasis on geospatial platforms, data integration, and rapidly enabling end-user workflows. Serve as a liaison between Vantor's product teams and Army end users, providing real-time feedback and shaping development roadmaps. Collaborate with cross-functional teams (Product, Engineering, PMO) to deliver customer-specific configurations and technical solutions. Support fielding, onboarding, and adoption of new capabilities. Translate complex customer needs into actionable technical requirements. Provide technical demos, documentation, and hands-on training. Maintain a high standard of cybersecurity, data integrity, and operational discipline in line with DoD requirements. Minimum Qualifications: Bachelor's degree in Computer Science, Engineering, or related technical field (or equivalent experience). Secret Clearance (Ability to obtain TS/SCI). 2+ Years Relevant Experience. Proficient in one or more languages: Python, JavaScript, Go, C++, or similar. Comfort with Linux-based systems, cloud architectures, and containerized deployments (Docker, Kubernetes, etc.). Experience supporting or interacting with DoD programs, ideally in a forward or fielded capacity. Strong communication skills with ability to build trust across technical and non-technical stakeholders. Ability to travel up to 25-50% and support occasional after-hours mission requirements. Preferred Qualifications: Prior experience supporting Army or joint tactical missions. Familiarity with GIS, 3D terrain, or mission command platforms. Understanding of cybersecurity standards (e.g., RMF, CMMC). Current or prior military service or operational support background. Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate's starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range. ● The base pay for this position within the Washington, DC metropolitan area is: $90,000.00 - $150,000.00 annually. For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range. Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: ****************************** The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. The date of posting can be found on Vantor's Career page at the top of each job posting. To apply, submit your application via Vantor's Career page. EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.
    $90k-150k yearly 2d ago
  • Staff Engineer (Flightdeck and Avionics) (Tysons (McLean))

    Air Line Pilots Association

    Principal engineer job in McLean, VA

    Are you the right candidate for this opportunity Make sure to read the full description below. Staff Engineer (Flightdeck and Avionics) City: Tysons (McLean) State: VA Country:US Type: 4 (Exempt, Bargaining Unit 1 (EB) # of Openings: 1 Company Name: Air Line Pilots Association, Int'l., Tysons (McLean), Virginia, United States Description: Staff Engineer (Flightdeck and Avionics) The Air Line Pilots Association, International (ALPA), the largest airline pilot union in the world and the largest non-governmental aviation safety organization in the world (representing over 80,000 pilots at 42 U.S. and Canadian airlines) seeks an experienced Staff Engineer for our Tysons (McLean), Virginia office. The Staff Engineer provides project coordination, subject matter expertise, and analysis in support of the activities, programs, and safety initiatives of the Association in the areas of aviation safety and security related to current and future flight deck technologies and avionics of civilian transport category airplanes. This staff engineers daily work focuses on policies, regulations, and standards that include the design, integration, and operation of future avionics, the architecture of the flight deck environment, and other related topics. The position actively participates in activities that involve continuing airworthiness of avionics systems, proposed rules related to airplane avionics and flight decks, and associated policies. The position also participates in the development of industry standards at organizations such as RTCA, and ASTM, for the next generation of avionics and airline flight decks that will be utilized by ALPA members. The Staff Engineer coordinates with and acts as a liaison between ALPA and appropriate government agencies and the broader aviation industry, creating and expanding their network of government and industry contacts. They develop written communications to the membership, to governments in response to their requests for comments, and to industry groups on flight deck-related safety and security issues, as needed, and in coordination with relevant Association leadership, Committee representatives, and staff. This position supports the Associations representation to government agencies such as the Federal Aviation Administration (FAA) and Transport Canada (TC), Transportation Security Administration (TSA), and NAV CANADA. They also support ALPA Air Safety Organization (ASO) pilot representatives on relevant internal and external committees and assist in conducting meetings between ALPA and industry/government stakeholders on areas of assigned work. Travel: 10 - 20%. ALPA is an equal opportunity employer that is committed to diversity and inclusion in a safe workplace. We prohibit discrimination, harassment and harmful behavior of any kind based on race, color, sex, religion, sexual orientation, national origin, gender identity, caste, disability, genetic information, pregnancy, or other protected characteristics as outlined in federal or provincial laws. We highly value everyone and all are encouraged to apply, including minorities, veterans, and people with disabilities. This position is covered by a collective bargaining agreement. ALPA is a member-driven, staff supported, union with two internal professional unions. Minimum Requirements: Bachelor's degree in engineering with specialization in one of the following: avionics, avionics technician, flight deck architecture, or avionics engineering. Coursework or training in avionics design and flight deck design is preferred from an accredited college or university, or the equivalent combination of education and practical experience. Minimum three (3) years of previous work experience in the civil aviation industry working on transport category airplane flight decks and avionics, five (5) or more years strongly preferred. Must be able to demonstrate previous work related to the standards development and design integration and operation of avionics and/or flight deck systems on civilian transport category airplanes. An understanding of aviation industry flight deck and avionics standards development at RTCA, ASTM, SAE, or similar aviation standards organizations is strongly preferred. Former employment at airlines, the FAA, or an industry civil aviation segment in a relevant capacity is extremely helpful. Special expertise in U.S. and Canadian Aviation Regulations (FARs and CARs), policies pertaining to systems certification and continuing airworthiness, and standards development related to avionics and flight deck technologies for aircraft, AAM, and knowledge of ICAO and/or international safety data systems. The ability to learn quickly and seamlessly adapt to changing demands is extremely important. Strong interpersonal and communication skills, oral and written, for effective interaction with staff, pilot members, and external contacts Technical writing and presentation skills to communicate effectively with Association members and Executives, government and industry representatives and stakeholders, and staff. Able to work independently and to be proactive in identifying and responding to issues and problems. On a rotational basis, answers calls to the ALPA Worldwide Accident Hotline and the Pilot Peer Support line, including outside business hours, weekends, and holidays. Software: Microsoft Word, Outlook, PowerPoint, and Excel. Able to work flexible schedule on short notice as needed. Physical Demands: Note: The physical demands described herein are characteristic of those that must be met to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable individuals to perform the essential physical activities of this position described below. Constantly operates a computer/smartphone/tablet. Regularly required to maintain a stationary position; move about the office and the local metropolitan area; determine what others have said or written; and, converse with others and exchange accurate information. Regularly required to sit, stand, bend, reach, and move about the office and travel (locally, nationally, and internationally). May also include occasional bending, stooping, squatting, and/or pushing and pulling or moving, e.g., to pack, unpack, and/or move cases. Occasionally required to move, raise, reach, and/or retrieve binders, books, boxes, and files up to ten (10) pounds (lbs.). While on travel, could be responsible to move, raise, reach, and/or retrieve luggage weighing as much as 50 lbs. (Assistance may not always be available.) ALPA offers competitive salaries with terrific benefits, including: 401k Plan with Non-Elective Employer Contribution of 12% plus 2% contribution into a Market-Based Cash Balance Plan (MBCBP) after 180 days of employment. No employee contribution required! Employees can choose to make pre-tax, Roth, and after-tax contributions to the 401(k). The plan permits in-plan Roth conversions and has a 4-year vesting schedule. The MBCBP has a 3-year cliff vesting period; Generous health care benefits on day one Aetna PPO Plan, Aetna High Deductible Health Plan, and a Kaiser HMO Plan (where available), which includes coverage for medical, dental, and vision benefits for the employee, their spouse, and/or dependent children. Employees do not have to pay premiums if they enroll in the Aetna High Deductible Health Plan or the Kaiser HMO Plan; days paid vacation and holidays per year plus 2 volunteer days per year; Generous sick and bereavement leave; Competitive parental leave; Company-paid coverage for long term disability, life insurance, and accidental death & dismemberment; Flexible Spending and Health Savings accounts; Retiree health plan and a retiree health account (retiree HRA). Funds in the retiree health account can be used to pay for eligible medical expenses in retirement; Education Assistance Program that reimburses 100% of eligible expenses; Optional benefits include a legal plan, supplemental life insurance, college 529 plan, pet insurance, long term care insurance, and qualified transportation fringe benefits (where available); and, Partial remote work opportunities are available after six months of service. PROJECTED ANNUAL SALARY RANGE: $ 96,027.00 $ 137,179.00 Relocation not provided. xevrcyc Sponsorship not available for this position. PM19 Compensation details: 96 Yearly Salary PIbc9fbda68154-38
    $96k-137.2k yearly 1d ago
  • Principal Software Engineer

    Leonardo DRS

    Principal engineer job in Germantown, MD

    Principal Software Engineer - On-site DRS RADA Technologies, a subsidiary of Leonardo DRS, is focused on proprietary radar solutions and legacy avionics systems supporting the defense industry globally. The company is a global pioneer of AESA tactical radars for active military protection, counter-drone applications, critical infrastructure protection, and border surveillance. Job Summary Join our dynamic radar defense company as a Principal Software Engineer where you'll drive technical vision and architect transformative solutions across our entire product ecosystem. We're seeking a distinguished engineer who can seamlessly bridge the gaps between software, hardware, product strategy, and manufacturing while delivering innovative, secure solutions. In this role, you'll serve as a technical visionary and hands-on architect, collaborating across teams to design and implement mission-critical systems that scale with our rapid growth, all while embracing our collaborative, ego-free culture that values results over hierarchy. Your deep technical expertise, proven ability to solve multifaceted engineering challenges, and talent for aligning diverse teams will be crucial as we partner with major defense contractors and scale our impact in the industry. This role offers the unique opportunity to shape not just software architecture, but the entire technical direction of a growing defense technology company. Job Responsibilities Be Involved with the design, development, analysis, testing and debugging of computer software applications and/or systems. Be ready to learn about Image and Signal Processing, Real-time, Firmware, Database Design, Operating Systems, and more. Take ownership of the outcome and the journey there: budget, costs, estimated schedules, leadership. Communicate clearly (written and oral) with other company personnel and the customer as required. Be a team player and provide technical knowledge and assistance to other engineers, support personnel, and teach others on the team. Be able to work with clients, product, hardware, and other teams. Mastery of technologies and domain knowledge. Expected to have knowledge and significant experience in multiple engineering disciplines. This role offers the unique opportunity to shape not just software architecture, but the entire technical direction of a growing defense technology company. Qualifications Master's degree in engineering or related technical field with a minimum of 8 years of experience. Fluency in c/c++. Experience working with Realtime operating systems. Experience or be willing to learn: Matlab, Python, Linux, React, Node, and other languages. Ability to lead a technical group independently. Open to occasional travel. U.S. Citizenship required. The expected pay scale for this position is $130,801/year - $203,068/year. Should the level, location, or scope of the position change during the hiring process, the pay scale may be modified accordingly. When extending an offer of employment, Leonardo DRS considers factors such as (but not limited to) the scope and responsibilities of the position; any Federal Government contract labor categories and contract wage rates, the candidate's relevant work experience, education/training, certifications, and key skills; internal equity; and market and business considerations. Taking care of our people is a top priority at Leonardo DRS. We are proud to offer competitive salaries and comprehensive benefits, including medical, dental, and vision coverage, a company contribution to a health savings account, telemedicine, life and disability insurance, legal insurance, and a 401(k) savings plan. We champion wellness programs that focus on physical, emotional, and financial well-being. We develop our talent by offering programs and activities to support career-growth, professional development, and skill enhancement. And we understand there is more to life than work, and the importance of offering flexible work schedules with our 9/80 program, competitive vacation, health/emergency leave, paid parental leave, and community service hours. *Some employees are eligible for limited benefits only Leonardo DRS, Inc. and its subsidiaries provide equal opportunities to all employees and applicants for employment and prohibit discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. Our Vision. To be the leading mid-tier defense technology company in the U.S. Our Values. The Leonardo DRS culture is defined by our Core Values and Principles: - Integrity - Agility - Excellence - Customer Focus - Community & Respect - Innovation We strive to uphold them in all aspects of our business practices to inspire our employees and provide outstanding support for our customers.
    $130.8k-203.1k yearly 4d ago
  • Reverse Engineer/Vulnerability Researcher

    Tekstream Solutions 4.5company rating

    Principal engineer job in Chantilly, VA

    Secret clearance or higher Chantilly, Virginia Performs assignments of a routine degree of complexity by compiling and evaluating design and test data, preparing technical specifications, analyzing technical data to determine appropriate limits and variables for electrical/electronic systems, components, equipment, and networks. Assists in the interpretation of results and writing of small sections of technical reports. Completes assigned project work within schedule and budget constraints. THE FOLLOWING IS REQUIRED Bachelor's in Computer Science, Computer Engineering, Electrical Engineering, or related field of study and (+2) years of experience, OR Master's degree in a relevant field, OR an equivalent combination of education/experience in a relevant field Develop software to run in user-mode or kernel-mode Ability to code in C or C++ Ability to use a scripting language (Python, Perl, Ruby, etc.) Experience with PC and embedded systems architecture to include boot processes and OS internals Experience with a disassembler for vulnerability research (IDA Pro, BinaryNinja, etc.) Understand network protocols Experience with one or more assembly languages (x86, x64, ARM, MIPS, PowerPC, etc.) Experience with one or more debuggers (WinDbg, OllyDbg, gdb, etc.) Experience with vulnerability research on one or more operating systems: Android, iOS, Windows, Linux, MacOS, VxWorks, QNX, RTOSs, or other custom operating systems Ability to demonstrate good organization, documentation, communication, problem-solving, and teamwork skills Knowledge of common mitigation techniques (DEP, ASLR, etc.) Familiarity with fuzzers Must be a sole US citizen with an active DoD Secret security clearance THE FOLLOWING IS DESIRED Participation in CTFs Ability to analyze assembly-level code on multiple platforms (x86, x64, ARM, MIPS, PowerPC, etc.) Experience with symbolic analysis Ability to analyze network protocols throughout all layers of the network stack Background in software engineering and architecture
    $74k-104k yearly est. 6d ago
  • Lead Backend Engineer (Java/Spark, ETL, AWS)

    Tekvalue It Solutions

    Principal engineer job in McLean, VA

    Long Term Note: MUST have prior COF experience Required Skills & Experience 7+ years backend development experience with strong proficiency in Java. 4+ years building distributed ETL/data processing workflows using Apache Spark. Strong hands-on experience with AWS serverless data services: Step Functions, Glue, Lambda, S3. Proven ability to design secure, large-scale file ingestion and data transfer pipelines. Deep understanding of batch processing, distributed computation, and data performance tuning. Experience working in CI/CD-driven environments with automated testing and deployment. Demonstrated ability to lead technical direction, standards, and quality without direct people management duties.
    $74k-102k yearly est. 3d ago
  • Sr. Identity (IGA/PAM) Engineer

    Covenant HR

    Principal engineer job in Tysons Corner, VA

    Company - Our client is a rapidly growing cybersecurity services provider supporting Fortune 500 and financial institutions. Known for its deep technical expertise and white-glove customer delivery, this firm partners with some of the most recognized brands in the security space. Their customer for this engagement is a prestigious financial services institution headquartered in the Tysons, VA area. Job Title - Sr. Identity (IGA/PAM) Engineer Location - Hybrid: 3 days/week onsite in Tysons, VA; 2 days remote Role Type - Contract (6 months / 1,040 hours) Must Have Skills: 7+ years of progressive experience in Identity & Access Management (IAM) engineering and architecture 3+ years of hands-on enterprise experience deploying and managing IGA and PAM platforms Proven background in Enterprise IAM environments Deep experience with the Saviynt platform, including both IGA and Cloud PAM modules Expertise integrating IGA/PAM systems with systems like Active Directory, cloud services, databases, and custom apps using connectors and APIs Responsibilities and Job Details: Lead the engineering, integration, and administration of Saviynt IGA, including workflows, lifecycle management, and application onboarding Design and support the Saviynt Cloud PAM module for privileged access, session recording, and auditing Own the full lifecycle of IGA and PAM platforms, including upgrades, patching, and maintenance Develop and maintain access certification, SoD, and role-based governance policies Function as a key technical member of the Enterprise IAM team, adhering to security and change management standards Act as a liaison between security and other departments, communicating technical requirements and risks effectively Provide Tier 3 support and root cause analysis for complex IAM issues Participate in off-hours support as needed, including on-call rotations Collaborate across development, infrastructure, audit, and business units Ensure high availability and performance of IAM systems through capacity planning Document and track technical implementations and decisions throughout project phases Adhere to strict security and compliance requirements in a financial enterprise setting
    $86k-116k yearly est. 1d ago
  • Senior AI Engineer

    Techtrend, Inc.

    Principal engineer job in Reston, VA

    TechTrend is seeking a talented Senior AI Engineer to join our AI Rapid Innovation team. Using a modern technology stack and agile approach, in this role you will have the opportunity to lead the development and prototyping of cutting-edge AI solutions that transform how our clients leverage artificial intelligence in their operations. Be a member of an environment that thrives on innovation and ideas of all members of the team. Our environment is highly collaborative and allows you the opportunity to continue building your skills through training and multiple diverse projects while mentoring and guiding technical team members. Duties and Responsibilities: · Lead the design, development, and prototyping of innovative AI solutions primarily using Google Cloud Platform (GCP) AI/ML services including Vertex AI, AI Platform, Document AI, and related technologies. · Partner with stakeholders, product teams, and technical leadership to rapidly solution and architect AI capabilities that address complex business challenges for major U.S. Government customers. · Provide technical leadership and mentorship to development team members, guiding best practices in AI/ML engineering, cloud architecture, and agile development methodologies. · Collaborate closely with business teams, data scientists, and IT professionals to translate business requirements into scalable, production-ready AI solutions. · Architect and implement end-to-end AI pipelines including data ingestion, model training, deployment, monitoring, and continuous improvement using GCP native services. · Develop proof-of-concepts and prototypes that demonstrate the art-of-the-possible with generative AI, large language models (LLMs), computer vision, natural language processing, and predictive analytics. · Leverage experience with Azure AI services (Azure OpenAI, Azure Machine Learning, Cognitive Services) to provide cross-cloud AI solutions when required. · Implement responsible AI practices including model explainability, bias detection, security controls, and compliance with industry standards and government regulations. · Work within DevOps/MLOps environments to automate infrastructure provisioning, model deployment, and monitoring using Infrastructure as Code (IaC) tools. · Create comprehensive technical documentation including architecture diagrams, API specifications, model cards, and operational runbooks for AI solutions. · Demonstrate a high degree of adaptability and willingness to take on varied responsibilities, often beyond the initial scope of the role, to meet evolving business needs and contribute to cross-functional initiatives. · Stay current with emerging AI technologies, tools, and best practices, and evangelize innovations within the team and to client stakeholders. Required Qualifications: · Bachelor's degree in Computer Science, Software Engineering, Data Science, Artificial Intelligence, or related technical field · 5+ years of hands-on software development experience with demonstrated expertise in Python, and familiarity with frameworks such as TensorFlow, PyTorch, scikit-learn, LangChain, or similar · 2+ years of experience in a technical leadership or team lead capacity, including mentoring developers and guiding technical decisions · Proven experience designing and deploying AI/ML solutions in Google Cloud Platform, with hands-on knowledge of Vertex AI, BigQuery ML, Document AI, or other GCP AI services · Strong understanding of machine learning fundamentals, model development lifecycle, and production ML system design · Experience with containerization (Docker, Kubernetes/GKE) and orchestration of AI workloads in cloud environments · Familiarity with vector databases, embeddings, and retrieval-augmented generation (RAG) architectures for generative AI applications · Experience with API development and integration using REST, gRPC, or similar protocols · Strong problem-solving skills with ability to rapidly prototype and iterate on AI solutions Preferred Qualifications: · Google Cloud Professional Machine Learning Engineer or Professional Cloud Architect certification · Experience with Azure AI services (Azure OpenAI Service, Azure Cognitive Services) · Familiarity with generative AI platforms and frameworks (OpenAI API, Gemini, etc.) · Experience with data engineering tools and practices · Knowledge of AI security, model governance, and responsible AI practices Work Details: · Work Location: Hybrid - Must live within commutable distance to Reston, VA · Travel Requirements: Minimal travel (10% or less) · Job Type: Full-time Benefits: · Medical, Dental and Vision Insurance · Life, Short and Long-term Disability Insurance · PTO & All federal holidays off · 401(k) Plan (matching component included) · Free Gym Access at Headquarters TechTrend, Inc. is a Small Business providing IT products and services to both the government and commercial markets. We were founded in 2003 and continue to evolve as a leading provider of enterprise-wide services and technology solutions. TechTrend is a noted and trusted partner to our clients who seek our knowledge and guidance for their most critical and complex IT projects. TechTrend's mission is to provide comprehensive, enterprise-wide IT solutions to our clients' complex challenges. We serve as a liaison for positive organizational change by forming relationships and building bridges across functions, gaining buy-in from both leaders and end-users, and removing barriers to mission success. Our established processes ensure quality delivery of results by maximizing efficiency, productivity, and client satisfaction enterprise-wide.
    $86k-116k yearly est. 4d ago
  • Product Engineer

    Techclub Inc.

    Principal engineer job in McLean, VA

    Role: Product Engineer Total Exp: 10 & Above Skills: Azure Machine Learning (ML), Salesforce Marketing Cloud, Salesforce Einstein Analytics Prompt Design Optimization Develop, test, and refine prompts for AI models to achieve accurate, context-aware outputs. Create reusable prompt libraries and guardrails for enterprise use cases. Salesforce AI Integration Leverage Salesforce Einstein and Agent force for predictive analytics, conversational AI, and automation. Collaborate with Salesforce architects to embed AI-driven workflows into CRM processes.AI Enablement Governance Define best practices for prompt engineering across teams. Ensure compliance with enterprise security, data privacy, and ethical AI guidelines. Managerial Responsibilities Lead and mentor team members, fostering collaboration and continuous learning. Manage stakeholder relationships and ensure timely delivery of AI initiatives. Oversee project planning, budgeting, and governance for AI-related programs. Cross-functional Collaboration Work closely with developers, architects, and business stakeholders to translate requirements into AI solutions. Conduct workshops and training sessions on effective prompt engineering. We are seeking a Prompt Engineer with proven experience in AI-driven solutions and Salesforce AI capabilities (Einstein, Agent force). The ideal candidate will design, optimize, and implement prompt strategies for generative AI models, ensuring alignment with enterprise standards and delivering measurable business impact. Preferred Skills: Salesforce certifications (Administrator, Platform App Builder, AI Specialist). Familiarity with Copado, Antirabbit, and DevOps tools for Salesforce. Exposure to cloud platforms (AWS, Azure) and integration patterns.
    $74k-97k yearly est. 2d ago
  • Product Engineer

    Programmers.Io 3.8company rating

    Principal engineer job in McLean, VA

    Programmers.io is currently looking for a Product Engineer Onsite Role in McLean, Virginia, United States OPEN FOR C2C OR W2 Prompt Design Optimization Develop, test, and refine prompts for AI models to achieve accurate, context-aware outputs. Create reusable prompt libraries and guardrails for enterprise use cases. Salesforce AI Integration Leverage Salesforce Einstein and Agent force for predictive analytics, conversational AI, and automation. Collaborate with Salesforce architects to embed AI-driven workflows into CRM processes.AI Enablement Governance Define best practices for prompt engineering across teams. Ensure compliance with enterprise security, data privacy, and ethical AI guidelines. Managerial Responsibilities Lead and mentor team members, fostering collaboration and continuous learning. Manage stakeholder relationships and ensure timely delivery of AI initiatives. Oversee project planning, budgeting, and governance for AI-related programs. Cross-functional Collaboration Work closely with developers, architects, and business stakeholders to translate requirements into AI solutions. Conduct workshops and training sessions on effective prompt engineering. If you are interested, please apply or feel free to share your updated resume at ************************
    $71k-92k yearly est. 2d ago
  • Principal Auditor - Global Payment Network

    Capital One 4.7company rating

    Principal engineer job in McLean, VA

    Capital One's Audit function is a dedicated group of professionals focused on delivering top-quality assurance services to the organization's Audit Committee. Audit professionals are experienced, well-trained and credentialed, and operate within a collaborative, agile environment to deliver value-added opinions and recommendations. Audit's vision to provide high value, independent, proactive insights, to innovate with technology, and to be a top-notch talent destination, creates a dynamic and challenging atmosphere for both personal growth and professional opportunity. Inspired by our colleagues, we are risk identifiers, challengers, influencers, and transformational leaders who drive impactful work for the enterprise. Capital One is seeking an energetic, self-motivated Principal Auditor interested in becoming part of our Audit team, with a specific focus on the Discover Financial Services global payments network, platforms, technologies, and related operations (e.g., credit/debit processing, digital payments, acquiring, servicing domestic/abroad, settlement operations). We are seeking a candidate that has demonstrated knowledge of payments network operations and ecosystem related risks, as well as risk management and regulatory expectations for a large financial institution. This role will be hired as a Capital One associate with a near-term focus on audit execution and delivery for Discover Financial Services as part of our integration effort. Responsibilities include: Plan, perform, and lead large/complex audits at the enterprise level as well as other diverse lines of business and specialty areas. Perform risk assessments of business activities, potential exposures and materiality of loss. Design and perform audit procedures, including identifying and defining issues, reviewing and analyzing evidence, and documenting processes. Leverage available data and analytical tools during the planning, fieldwork, and reporting phases of audit delivery. Effectively review and compile relevant, material findings and recommendations into readable and concise audit reports. Communicate the results of audit projects to management via written reports and compelling oral presentations. Provide significant input into the development of the annual audit plan. Design and execute internal control testing for standardized operations of moderate complexity with more than one component, including finance, IT, compliance, credit, security. Provide risk management advice and counsel to business leadership on best practices. Establish and maintain good working relationships with line management and auditees during engagements. Manage audit work and project resources during audit engagements, providing feedback on work performed to junior auditors, as appropriate. Here's what we're looking for in an ideal teammate: You adapt to change, embrace bold ideas, and are intellectually curious. You like to ask questions, test assumptions, and challenge conventional thinking. You develop influential relationships based upon shared risk objectives and trust to deliver outstanding business impact and elevate Audit's value proposition. You're a firm believer that a rich understanding of data, innovation, and technology will only make you a better auditor. This will require leveraging the power of data analytics and furthering your technical expertise. You're a teacher. You do the right thing and lead by example. You have a passion for coaching and investing in the betterment of your team. You lead through change with candor and optimism. You create energy and an environment that fosters trust, collaboration, and belonging, making it easy to attract, hire, and retain top talent. Travel Expectations: The associate will be expected to travel an average of 10-15% of the time. Basic Qualifications: Bachelor's Degree or military experience At least 3 years of experience in internal or external auditing, accounting, financial analysis, information systems, compliance, risk management or a combination At least 3 years of experience in global payment network operations and banking or financial services, or a combination Preferred Qualifications: Bachelor's Degree in Accounting, Finance, Economics, Business Administration, or Information Systems 2+ years of experience leading audits and performing the auditor-in-charge role Professional certification such as Certified Public Accountant (CPA), Certified Internal Auditor (CIA), Certified Information Systems Auditor (CISA), or Certified Risk Manager (CRM) 1+ years of experience performing data analysis in support of internal auditing At this time, Capital One will not sponsor a new applicant for employment authorization for this position. This role is hybrid meaning associates will spend 3 days per week in-person at one of our offices listed on this job posting. Fridays are enterprise- wide virtual work days. Monday, Tuesday, Wednesday and Thursday are in-person days for associates to spend time together working in our beautifully-designed team areas. The minimum and maximum full-time annual salaries for this role are listed below, by location. Please note that this salary information is solely for candidates hired to perform work within one of these locations, and refers to the amount Capital One is willing to pay at the time of this posting. Salaries for part-time roles will be prorated based upon the agreed upon number of hours to be regularly worked. Charlotte, NC: $115,900 - $132,200 for Prin Assoc, Cyber Risk & AnalysisChicago, IL: $115,900 - $132,200 for Prin Assoc, Cyber Risk & AnalysisMcLean, VA: $127,500 - $145,500 for Prin Assoc, Cyber Risk & AnalysisNew York, NY: $139,100 - $158,700 for Prin Assoc, Cyber Risk & AnalysisPlano, TX: $115,900 - $132,200 for Prin Assoc, Cyber Risk & AnalysisRichmond, VA: $115,900 - $132,200 for Prin Assoc, Cyber Risk & AnalysisRiverwoods, IL: $115,900 - $132,200 for Prin Assoc, Cyber Risk & Analysis Candidates hired to work in other locations will be subject to the pay range associated with that location, and the actual annualized salary amount offered to any candidate at the time of hire will be reflected solely in the candidate's offer letter. This role is also eligible to earn performance based incentive compensation, which may include cash bonus(es) and/or long term incentives (LTI). Incentives could be discretionary or non discretionary depending on the plan. Capital One offers a comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being. Learn more at the Capital One Careers website. Eligibility varies based on full or part-time status, exempt or non-exempt status, and management level. This role is expected to accept applications for a minimum of 5 business days.No agencies please. Capital One is an equal opportunity employer (EOE, including disability/vet) committed to non-discrimination in compliance with applicable federal, state, and local laws. Capital One promotes a drug-free workplace. Capital One will consider for employment qualified applicants with a criminal history in a manner consistent with the requirements of applicable laws regarding criminal background inquiries, including, to the extent applicable, Article 23-A of the New York Correction Law; San Francisco, California Police Code Article 49, Sections 4901-4920; New York City's Fair Chance Act; Philadelphia's Fair Criminal Records Screening Act; and other applicable federal, state, and local laws and regulations regarding criminal background inquiries. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at ************** or via email at RecruitingAccommodation@capitalone.com. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. For technical support or questions about Capital One's recruiting process, please send an email to ********************** Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).
    $139.1k-158.7k yearly 1d ago
  • Electrical Engineer

    JMD Technologies Inc.

    Principal engineer job in Chantilly, VA

    Education: Bachelor's or Master's degree in Electrical Engineering or a related field. Technical Skills: Proficiency in electrical circuit design, analysis, and simulation software; knowledge of electrical codes and standards; familiarity with CAD tools. Problem-Solving: Strong analytical and critical-thinking abilities to diagnose and resolve engineering challenges. Time Management: Strong organizational skills to manage multiple projects and meet deadlines. Experience: Previous experience in electrical engineering or related roles preferred; hands-on experience with testing equipment and manufacturing processes is a plus.
    $71k-93k yearly est. 3d ago
  • Cloud System Engineer

    Elevait Solutions

    Principal engineer job in Frederick, MD

    Job Title: Cloud System Engineer (Direct Hire) (Hybrid - 3 days onsite, 2 days remote) Additional Locations: Frederick, MD or McConnellsburg, PA Interview Process: TA → HR → In-Person (Upper Management) Top Requirements Strong communication skills, self-starter, positive attitude. Long-tenure candidates only (no frequent job changes). Current Microsoft Azure Gov Cloud experience. Position Overview The Senior Cloud Engineer will focus on driving profitable cloud adoption and supporting innovation and consumption of cloud-based services across the enterprise. This role ensures cloud security, implements security controls, manages identity and access, and oversees seamless data integration and data feeds. The engineer will evaluate vendor alignment, scale the cloud ecosystem, and ensure operational excellence-including disaster recovery and backup standards. Your Impact Provide daily operational support of the Microsoft Azure Gov Cloud ecosystem including installation, configuration, deployment, updates, integrations, and administration. Utilize tools such as Azure Kubernetes, Terraform Enterprise, GitHub, and related technologies. Work with public and private clouds, IaaS, data security standards, system messaging, and data feeds. Conduct triage, troubleshoot, and resolve cloud ecosystem issues & outages. Participate in project teams following leadership-defined designs and plans. Collaborate cross-functionally with server, storage, database, support, and security teams. Continuously learn, adopt new technologies, and improve cloud, automation, and CI/CD processes. Monitor and analyze cloud performance and ecosystem health. Demonstrate advanced knowledge in at least one primary cloud domain (database, virtualization, DevOps, networking, servers, scripting, or containerization). Coordinate with cross-functional teams for applications, databases, and infrastructure activities. Apply ITIL processes for ticket resolution and stakeholder communication. Design, implement, and operate complex cloud solutions. Perform other duties as assigned. Regular attendance required. Minimum Qualifications 4+ years of experience in cloud or related IT environment. Experience with monitoring, troubleshooting, scripting, deployment, integration, messaging, automation, and orchestration. Strong written & verbal communication, problem-solving, time management, teamwork, customer service, and attention to detail. Standout Qualifications Bachelor's degree in Information Technology or related field.
    $75k-100k yearly est. 3d ago
  • MEP Senior Engineer

    Holder Construction 4.7company rating

    Principal engineer job in Ashburn, VA

    Holder Construction is seeking qualified highly motivated candidates in our Mechanical, Electrical and Plumbing Services Team at one of project sites in Ashburn, VA. Primary Responsibilities Communication with electrical/mechanical equipment vendors, electrical/mechanical design engineers, clients and subcontractors. This position involves procurement of electrical/mechanical subcontracts and equipment, managing contracts and contract deliverables from bid solicitation through contract award, equipment submittal coordination, assistance with electrical/mechanical and overall construction cost estimates. Common projects include commercial projects within our core markets: Data Centers; Aviation; Higher Education and Corporate / Commercial Office. Requirements For This Position Include Bachelor's degree in Mechanical, Electrical Engineering or Construction Management The ideal candidate will have 5+ years of Mechanical, Electrical and Plumbing preconstruction experience and have the following skill sets: Ability to read and understand electrical, HVAC, plumbing, architectural and civil plans, and specifications Familiar with standard concepts, practices, and procedures of MEP Systems and equipment Good communication skills Ability to identify and resolve issues Effective participation in a team environment Detail-oriented with the ability to manage multiple projects and tasks
    $79k-99k yearly est. 2d ago
  • System Engineer L3 (MSP)

    Bowman Williams

    Principal engineer job in Columbia, MD

    System Engineer L3 (MSP Industry Experience Required) 💰 Salary: $110,000 - $120,000 🏢 Industry: Managed Services We are a modern, growth-driven Managed Services Provider committed to helping organizations scale with secure, reliable, and forward-thinking technology solutions. Our team supports diverse clients across cloud, cybersecurity, networking, and modern workplace systems. We don't just maintain IT - we transform it. That means thinking proactively, solving problems with urgency, and constantly evolving alongside emerging tech. Our culture values accountability, continuous learning, and excellence in execution. What You'll Do Serve as a Tier 3 escalation point for advanced issues and projects. Lead implementations, configurations, and migrations across Microsoft 365, Azure, and hybrid environments. Manage server operating systems - installation, configuration, and troubleshooting. Configure and maintain Active Directory, file permissions, event logs, and GPOs. Support and optimize backup/disaster recovery, networking (SonicWall, Cisco), and virtualization (Hyper-V, VMware, SANs). Automate processes and improve efficiency through PowerShell scripting and RMM tools (ConnectWise Automate). Collaborate with clients and internal teams to design scalable, secure, and compliant solutions. Participate in internal and external (client-facing) meetings when necessary to ensure alignment and smooth delivery. What You Bring Must have MSP industry experience. 3+ years of experience in systems, networking, or project engineering roles within an MSP Microsoft 365, Azure (VDI, InTune, SharePoint, Entra ID) Cisco & SonicWall network configurations Virtualization technologies: VMware or Hyper-V Experience delivering client-facing projects - migrations, deployments, rollouts. Why You'll Love It Here 100% company-paid Health, Dental, and Vision coverage Life, AD&D, Short- & Long-Term Disability insurance 3 weeks PTO (vacation, sick, and personal) + 6 paid holidays 401(k) with 3% match Bonus eligibility and professional certification reimbursement Company laptop, mileage reimbursement, and HSA plan A culture built on integrity, accountability, and continuous learning Join a company that's grown over 30% annually for the past four years-where your ideas matter, your work is valued, and your career can take off.
    $110k-120k yearly 4d ago
  • Project Engineer

    John Moriarty & Associates 3.9company rating

    Principal engineer job in Arlington, VA

    John Moriarty & Associates of Virginia (JMAV) is seeking a full-time Project Engineer (PE) to support construction project execution from preconstruction through closeout in the Washington, DC metro area. The PE will assist with scheduling, procurement, subcontractor coordination, document management, and project logistics. The PE should be located within daily driving distance of the Washington, DC metro area and can expect to travel between different jobsites as needed. Roles & Responsibilities: The Project Engineer will work closely with the PM and site team on a wide range of tasks, including: Management of assigned trades in all facets of preconstruction to include quantity take-offs, preparation of bid packages, and buy-out Oversee performance of assigned trades, including project status, schedule, cost control, change management systems, and maintain relationships with clients, designers, and consultants Supporting the creation and maintenance of project schedules Assisting with submittals, RFIs, and change order processing Coordinating project documentation and digital records Communicating with subcontractors and vendors Education: 4-year degree in Construction Management or related field required Work Experience: 3-5 years of experience required, in commercial construction is preferred Knowledge, Skills, and Abilities: Strong critical thinking and proactive problem-solving abilities Highly organized with attention to detail Effective communicator and team collaborator Strong multitasking and decision-making skills Ability to travel daily across DC-Metro area jobsites Proficiency in Microsoft Office and construction platforms Physical Requirements: Moderate physical activity; driving, walking rough terrain, climbing stairs/ladders Work Environment: Onsite, outdoor work in all weather conditions; moderate to loud noise exposure The Company: John Moriarty & Associates of Virginia (JMAV) is a privately held general contractor that specializes in large-scale, urban, ground-up projects such as mixed-use, multi-family, hotels, senior living, student housing, and bio-medical in the DC-Metro area. Exceptional for the industry, the majority of our projects are negotiated with over 85% being with repeat clients. Our approach is characterized by transparency, collaboration, attention to detail and hands-on leadership. Our projects are set up for success by our strong emphasis on pre-construction services and planning, proper staffing and hiring best-in-class subcontractors. Our growth has been a result of outstanding execution in every phase of project delivery and an unparalleled employee retention of the industry's best talent. Our parent company, John Moriarty & Associates (JMA), was founded in 1985 in Winchester, MA and is one of the most respected general contracting firms in the industry. Learn more about us at ************** and ************* John Moriarty & Associates of Virginia participates in E-Verify for all hired employees. E-Verify is a web-based system that allows enrolled employers to confirm the eligibility of their employees to work in the United States by electronically matching information provided by employees on the Form I-9 against records available to the Social Security Administration and the Department of Homeland Security. More information can be found at *****************
    $64k-84k yearly est. 5d ago
  • System Engineer

    Que Technology Group

    Principal engineer job in Columbia, MD

    About the Company Que Technology Group, Inc., is seeking a Senior Systems Engineer to support an exciting intelligence organization. About the Role As a Principal Systems Engineer, you will be responsible for designing, implementing, and maintaining enterprise-level systems that support mission-critical operations. You will work with ONEROOF, PITCHHITTER, NiFi, and various Systems Administration (SA) components, ensuring seamless virtualization, Linux environments, GOTS product integration, and Windows Server administration. Responsibilities Architect, configure, and maintain systems utilizing ONEROOF, PITCHHITTER, and NiFi to optimize workflow and data processing. Provide virtualization support, including cloud-based and on-premises solutions. Administer and troubleshoot Linux-based environments, ensuring high availability and security compliance. Manage, maintain and deploy GOTS (Government Off-The-Shelf) products, integrating them within complex system architectures. Oversee Windows Server administration, including performance tuning, security enhancements, and automation. Collaborate with cross-functional teams to ensure robust system design and operational efficiency. Develop and implement best practices for system security, monitoring, and documentation. Qualifications Bachelor's degree in a qualified engineering field or a related discipline from an accredited college or university, plus twenty (20) years of systems engineering experience; additional five (5) years of experience may be considered in lieu of degree. Experience with ONEROOF, PITCHHITTER and NiFi. Required Skills Experience with FORNSAT systems and Systems Integration. Preferred Skills Experience with GOTS products. Security Clearance Security Clearance: Active TS/SCI with Polygraph. Pay range and compensation package Competitive salary. Company Medical/Dental/Vision plans - Company paid. Short-term Disability, Long-term disability and Life Insurance - Company paid. Business/ First Class travel upgrade for 7 hour or longer flights & company card will be provided for expenses. Vacation / Personal days granted at 25 days per year. Paid Federal Holidays - 11 days. $5,000 Annual Professional Development Fund plus 40 paid hours if in class. 401K with 6% company match; all contributions are immediately vested by Employee. Employee will be paid a bonus of $10,000 per employee hired based on their referral. Up to 3 paid Code Red days due to customer closure. Equal Opportunity Statement Que Technology Group, Inc., is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
    $75k-100k yearly est. 3d ago
  • System Engineer

    Anchor Recruiting Group

    Principal engineer job in Ashburn, VA

    Our client is a highly respected Managed Service Provider (MSP) known for empowering IT professionals to excel. With a strong foundation in modern technology and a proactive, solutions-driven approach, they foster an environment where motivated individuals can thrive. The company deeply values its team and invests in ongoing professional growth and development. Role Overview They are seeking a Systems Engineer who will play a key role in building and maintaining high-performance network systems for a diverse client base. In this role, you'll design and implement innovative technical solutions while providing expert support and maintenance. You'll be an essential contributor to ensuring reliable, seamless technology operations-all within a well-established framework of proven best practices. Key Responsibilities: Plan and support client network and computing infrastructure. Perform administration of servers and virtual server clusters. Install, configure, and maintain network hardware, systems, services, equipment, and devices. Monitor and apply performance-enhancing changes to network architectures. Monitor and maintain network security systems and technologies. Administer software and network security. Maintain user account, permission, email, and threat management methodologies. Manage system back-up and restore protocols. Document network problems and resolutions for future reference. Create and maintain documentation for all aspects of hardware, networks, and systems including key standards and processes. Travel to and from client work sites as needed with personal vehicle. Work on-call after hours support rotation as needed. Be available after hours/weekends for project work as needed. Monitor queue and cover support extension and remote tickets as needed. Qualifications: Bachelor's Degree in Computer Science or Information Technology preferred. Minimum 3-5 years of network administration, design, and execution experience. Minimum 1-2 years of IT management-related experience. 1-2 years of prior experience and the demonstrated ability to be successful in a client-focused environment. Experience with Windows, Apple OS, HP/Aruba, Cisco Systems, and SonicWall. Experience in network infrastructure including switches, routers, cabling, racks, firewalls, LAN, WAN, TCP/IP, DNS, UDP, Latency, VPN, Terminal Services, VolP, and QoS. Web development knowledge. Experience with Azure and AWS. Experience in VMWare virtualization and Active Directory. Understanding of in-house systems architecture and cloud-based architectures required. Excellent communication skills with the ability to write reports, business correspondence, and procedure manuals, as well as providing clear communications via email and in person to clients and business associates. Strong project management skills. Ability to problem-solve and troubleshoot. Thrives in a fast-paced, entrepreneurial setting and excels when working both independently and as part of a team. Ability to accurately track timekeeping. If you are interested in joining an organization that offers growth, challenge and an opportunity to work in a variety of industries, please send your resume for immediate consideration.
    $74k-98k yearly est. 5d ago

Learn more about principal engineer jobs

How much does a principal engineer earn in Frederick, MD?

The average principal engineer in Frederick, MD earns between $90,000 and $173,000 annually. This compares to the national average principal engineer range of $95,000 to $177,000.

Average principal engineer salary in Frederick, MD

$125,000
Job type you want
Full Time
Part Time
Internship
Temporary