Principal Engineer - Product Integrity Blue OriginPrincipal Engineer - Product IntegrityBay Area, Washingtonand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. You will solve unprecedented challenges in ensuring hardware survives the rigors of launch, orbit, and long-duration deployment—pioneering physics-of-failure methodologies, predictive reliability frameworks, and AI-driven engineering approaches that redefine how high-stakes hardware is designed, qualified, and validated.
Principal Engineer Analyst – Azure Cloud Migration & Modernization / Active Secret PeratonPrincipal Engineer Analyst – Azure Cloud Migration & Modernization / Active SecretArlington, Virginia$104,000–$166,000 / yearFull timeApplicants must currently hold one of the following professional certifications or obtain one prior to start date (continued certification required): CASP+ CE, CCNA Cyber Ops, CCNA-Security, CCNP Security, CEH, CFR, CISA, CISSP (or Associate), Cloud+, CySA+, GCED, GCIA, GCIH, GICSP, SCYBER, VCA DCV, PPDA, Agile IC, SNOW App Dev. This role requires an experienced engineer who can take ownership of the entire lifecycle—from assessing the current environment and defining the future-state architecture to leading migration activities, establishing governance, and supporting long-term operations.
Principal Engineer, Ground System Software (R5199) Shield AI IncPrincipal Engineer, Ground System Software (R5199)Washington, DC$125,000–$230,000 / yearIntegrate sensors, effectors, communications, navigation, autonomy, mission management, command-and-control, data-processing, and vehicle services in collaboration with hardware, FPGA, cybersecurity, safety, systems, integration, and test teams. Define and execute verification strategies across HIL/SIL laboratories, simulations, test benches, flight-test environments, and deployed systems using automated, performance, stress, fault-injection, interface, and timing tests.
NewPrincipal Engineer Systems Planning And Analysis, Inc.Principal EngineerWashingtonExperience may be in radio frequency and microwave design OR pulsed power and high voltage design; Experience in HPM weapon effects or electromagnetic interference analysis; Ten (10) years of experience planning, technically directing, coordinating, and controlling engineering activities associated with engineering support contracts; solving technical problems that arise from the development and design of various directed energy systems; and providing expert judgement and analysis for the design, development, integration, and implementation of technical products and systems; Ten (10) years of experience related to one or more of the following technology areas: RF sensors, HPM systems, image and signal processing, and modeling and simulation; Ten (10) years of experience with US Navy or other Armed Services' Weapon or Warfare Systems research and development programs; DoD Top Secret clearance with ability to receive TS/SCI and the ability to maintain clearance throughout employment. These capabilities support more than 100 Above Water Sensor, Undersea, and Combat System programs and projects within the Navy's Portfolio Acquisition Executive for Mission Systems, Maritime and Munitions, as well as clients at Naval Surface Warfare Center, Dahlgren Division, Naval Surface Warfare Center, Crane Division, and the Office of Naval Research.#FC #Dice.
Principal Software Engineer VTG.Principal Software EngineerHanover, MD$200,000–$245,000 / yearAs a Principal Software Engineer supporting mission-essential national security initiatives, you will design, develop, integrate, and maintain secure, high-performance software solutions that enable critical intelligence, defense, and operational missions. Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, Electrical Engineering, Mathematics, or a related technical discipline.
Principal Systems Engineer (ONSITE) RTXPrincipal Systems Engineer (ONSITE)MarylandSolipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is an industry leader in the development of command and control software systems and operates in a dynamic, complex, fast-paced business environment with both commercial and Government customers, including a mix of domestic and international pursuits and programs. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
Senior Principal Systems Engineer (ONSITE) RTXSenior Principal Systems Engineer (ONSITE)MarylandSolipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is an industry leader in the development of command and control software systems and operates in a dynamic, complex, fast-paced business environment with both commercial and Government customers, including a mix of domestic and international pursuits and programs. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience.
Principal Systems Engineer (HYBRID) RTXPrincipal Systems Engineer (HYBRID)MarylandSolipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is an industry leader in the development of command-and-control software systems and operates in a dynamic, complex, fast-paced business environment with both commercial and Government customers, including a mix of domestic and international pursuits and programs. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
Principal Software Engineer NetApp IncPrincipal Software EngineerBaltimore, MD$220,000–$372,000 / yearYou will be responsible for system architecture, decomposing complex problems into simple solutions, understanding system interdependencies and limitations, cloud architectures, performance, scalability, bringing engineering best practices, and testing methods to the team. As the only enterprise-grade storage service natively embedded in Google Cloud, AWS, and Microsoft Azure, we empower customers to run everything from traditional workloads to enterprise AI with unmatched performance, resilience, and security.
Principal Hardware Design Engineer LeidosPrincipal Hardware Design EngineerLaurel, MarylandAs part of a multidisciplinary engineering team, you will serve as a senior technical authority, guiding complex engineering efforts, advancing innovative design methodologies, and helping shape the future direction of hardware engineering capabilities supporting national security missions. As a Principal Hardware Design Engineer, you will provide expert technical guidance across complex engineering efforts while developing innovative hardware solutions, advancing reverse engineering methodologies, and mentoring engineering teams.
Principal System Engineer - Payload AST Space MobilePrincipal System Engineer - PayloadLanham, MDWe are seeking an experienced and highly innovative Principal Systems Engineer - Payload to lead the design and development of advanced end-to-end wireless systems within a complex telecommunications environment. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today's five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.
Principal Controls Engineer Fluence Energy IncPrincipal Controls EngineerArlington, VAWe are looking for a Principal Controls Software Engineer with a passion for software design and extensive experience with power engineering, MathWorks Matlab/Simulink, Agile Scrum using Jira, and Git. Our core cultural pillars empower us to innovate, collaborate, and lead with purpose, ensuring we continue to deliver unparalleled value to our customers and the world.
Principal Software Engineer / Tech Lead LeidosPrincipal Software Engineer / Tech LeadArlington, Virginia$131,300–$237,350 / yearImplement software release version control, provide release management support throughout a software product's life cycle (initial software development through promotion to Test, QA and Production Environments), ensuring the consistency and reliability of software builds. June 3, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Senior Engineer Engineer III / Principal Engineer Engineer IV - Propulsion Quantum SpaceSenior Engineer Engineer III / Principal Engineer Engineer IV - PropulsionRockville, MD$160,000–$230,000 / yearWe are seeking an experienced Senior Engineer III / Principal Engineer IV - Propulsion Systems to lead the development of advanced flight-qualified propellant tanks and spacecraft propulsion systems supporting next-generation Ranger missions. This position is ideal for an engineer who thrives in a fast-paced environment, enjoys solving complex technical challenges, and is passionate about delivering flight-ready hardware for demanding national security, civil, and commercial space missions.
Electrical Engineer Barry-WehmillerElectrical EngineerBaltimore, MDBy blending people-centric leadership with disciplined operational strategies and purpose-driven growth, Barry-Wehmiller has become a $3 billion organization with nearly 12,000 team members united by a common belief: to use the power of business to build a better world. Customers rely on our machines to produce and convert items such as corrugated boxes, folding cartons, passports, notebooks, copy paper, board, and coated and other specialty papers.
Principal Engineer Thermal Sciences (MS/PhD) Exponent IncPrincipal Engineer Thermal Sciences (MS/PhD)Bowie, MD$241,000–$294,500 / yearYou will be responsible for Leading projects for failure analysis, root cause analysis investigations, product development and expert witness engagements in requisite areas of expertise Identifying and pursuing business development opportunities Managing multidisciplinary teams and collaborating with experts in other technical disciplines Project management and building client relationships Performing engineering calculations and analyses Performing laboratory experiments and analytical or computational modeling Planning and executing testing programs Preparing written reports, proposals, and presentations Domestic and international travel will likely be required Most assignments will require the ability to gather information from, and convey technical conclusions to, individuals in engineering, the legal profession, business and industry. 10+ years of relevant technical consulting experience in area(s) such as fires and explosions; product safety; process safety and risk assessment; fire protection engineering; plant engineering design, commissioning and maintenance; alternate energy generation; energy storage; and/or electrochemistry Prior experience testifying as an expert witness is required Significant demonstrated experience generating business and managing client relationships Professional Engineer (P.E.)
Principal Structural Engineer - Pipelines Washington Suburban Sanitary CommissionPrincipal Structural Engineer - PipelinesLaurel, MD$121,724–$207,259 / yearPerforms, leads, or oversees structural investigations and inspections of pipelines (steel pipes, ductile iron pipes, prestressed concrete cylinder pipes (PCCPs), reinforced concrete pipes and others) and above/underground structures related to water and wastewater systems and facilities infrastructure. Are you an eligible veteran of any branch of the armed forces who has received an honorable discharge or Certificate of Satisfactory Completion of Military Service, the spouse of an eligible veteran who has a service-connected disability or the surviving spouse of a deceased eligible veteran?.
Software Engineer University of WashingtonSoftware EngineerAnnapolis, MarylandRequirements Management (20% FTE): • Work with the customer’s Project Manager, Technical Project Manager, software developers, test engineers, and external stakeholders to elicit, refine, document, and maintain requirements for unmanned systems, unattended sensors, mission software, test tools, and integration environments. • Lead or contribute to small technical teams by assigning tasks, monitoring progress, resolving blockers, reviewing work products, and mentoring junior engineers in coding practices, documentation, configuration management, testing discipline, and customer communication.
Principal Cribl Engineer Zp Group LlcPrincipal Cribl EngineerWashington, DCZachary Piper Solutions is seeking a cleared Principal Cribl Engineer to support a critical national security mission across multiple customer locations including Joint Base Anacostia-Bolling (JBAB), Washington, DC; College Park, MD; and Reston, VA. This is a senior-level engineering opportunity for a highly experienced technical leader who will serve as the principal authority for observability pipelines built on Cribl Stream and Cribl Edge.
Principal Geotechnical/CMT Engineer - Annapolis Junction, MD Hillis-Carnes Engineering Associates IncPrincipal Geotechnical/CMT Engineer - Annapolis Junction, MDAnnapolis Junction, MDDuties may include but are not limited to; general geotechnical engineering practice including the preparation of geotechnical reports/calculation, technical support of field staff, review of construction inspection daily field reports, and occasional project site field visits related to the projects you are involved in. Candidate will work with our geotechnical and materials testing/inspections departments and be responsible for a wide variety of projects for public and private sector clients.