Principal‑Level Software Engineer (Java, Python) IDS International Government Services LLCPrincipal‑Level Software Engineer (Java, Python)Annapolis Junction, MD$155,000–$175,000 / yearThe engineer will work closely with data scientists and end users to develop analytic tools that support discovery and tradecraft around critical global challenges and operationalize data science within customer environments. Combining operational expertise with an intimate understanding of today's greatest challenges, we bring our customers the solutions required for success in a complex and multidimensional world.
NewPrincipal Systems Engineer (MBSE) (Onsite) RTX CorpPrincipal Systems Engineer (MBSE) (Onsite)Alexandria, VARaytheon is seeking a Principal Systems Engineer to perform Model Based Systems Engineering (MBSE) in support of enterprise-wide systems engineering and integration support within the Intelligence Community. Experience with unified Architecture Framework (UAF) for defense/aerospace environments, Digital Engineering practices, and tool chains to enhance design, integration, and test workflows.
NewPrincipal Solutions Architect Link Solutions IncPrincipal Solutions ArchitectMcLean, VAIn addition, a demonstrated ability to rapidly evaluate emerging technologies, translate them into practical mission capabilities, and develop differentiated technical solutions supporting both strategic pursuits and corporate capability development. This individual will serve as the technical lead across capture, proposal, business development, operational, and engineering teams, helping shape differentiated solutions and long-term technical strategy.
NewPrincipal Mechatronics Engineer, Space Special Programs Anduril Industries IncPrincipal Mechatronics Engineer, Space Special ProgramsChantilly, VA$220,000–$292,000 / yearThe ideal candidate would be practical, hands-on and a self-starter, with significant experience designing, analyzing, building, and operating spacecraft mechanical, opto-mechanical, and both passive and active mechanisms - experience machining components is a significant plus. Working across product, engineering, sales, logistics, operations, and mission success, the Space Special Programs team develops, tests, deploys, and operates new, unique, space capabilities to drive mission success in challenging operational environments.
NewPrincipal AI and Decision Engineer Mitre CorpPrincipal AI and Decision EngineerMcLean, VA$191,200–$239,000 / yearWe are specifically looking for talent in machine learning (including deep learning and reinforcement learning), and one or more of the following technical areas: large language models (LLM), generative and agentic AI, decision science, human-centered AI, human-machine teaming, cognitive science, AI testing and evaluation, multi-agent systems, knowledge-based reasoning, automated planning, semantics, and ontologies. Hands-on experience with machine learning (including deep learning and reinforcement learning), and one or more of the following technical areas: large language models (LLM), generative and agentic AI, decision science, human-centered AI, human-machine teaming, cognitive science, AI testing and evaluation, multi-agent systems, knowledge-based reasoning, automated planning, semantics, and ontologies.
Kearney Healthcare & Life Sciences Principal Provider A.T. Kearney IncKearney Healthcare & Life Sciences Principal ProviderWashington DC, DC$245,000–$270,000 / yearYou will contribute to client work addressing challenges related to corporate strategy, performance improvement, enterprise transformation, mergers & acquisitions, and commercial strategy initiatives across the Healthcare sector. Serve as a trusted advisor to C-suite and senior supply chain leaders, Drive impact across core planning capabilities, including: Demand planning and forecasting.
Principal Radio Frequency Engineer Two Six TechnologiesPrincipal Radio Frequency EngineerHerndon, VAFull timeThe team is growing and looking for someone with an advanced RF engineering and signal processing background who has an understanding of how to serve as an RF Subject Matter Expert (SME) to lead technical planning, reverse engineer complex RF protocols, and architect solutions for embedded security research programs. Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, Physics, Mathematics (or equivalent military/IC experience) paired with 9+ years of experience in DSP, SDR development, and RF reverse engineering.
NewPrincipal Cybersecurity Researcher Two Six TechnologiesPrincipal Cybersecurity ResearcherArlington, VAFull timeExperience delivering high‑quality technical documentation, such as vulnerability research and findings, industry white papers, and competitive proposals, that distills complex cybersecurity concepts for diverse audiences. Author detailed technical documentation, proposal sections, and white papers to communicate research findings and technical solutions to internal teams, stakeholders, and external audiences.
Principal Contracts Manager - Hybrid WestatPrincipal Contracts Manager - HybridBethesda, MDMaster’s degree or equivalent education and years of experience in business, contracts, management, or a related field, with at least 15 years of experience in Federal Government contracting and contract management, including extensive leadership responsibility overseeing teams and a diverse portfolio of health-related federal contracts or equivalent experience. + Experience negotiating and administering data-related agreements, including data licensing, data use agreements (DUAs), data transfer agreements (DTAs), research collaboration agreements, and partnerships involving healthcare claims, EHR, registry, and other research datasets.
Managing Principal / Senior Director, Data Analytics Consulting EPAM SystemsManaging Principal / Senior Director, Data Analytics ConsultingWashington DC, DCThis is a high-impact, client-facing role designed for an ambitious professional with deep technical expertise in AI & Data, proven consulting acumen, and a track record of driving transformational outcomes for enterprise clients. • Serve as a trusted strategic advisor to senior executives (VP, SVP, C-suite) on AI enablement, data-driven transformation, and operational efficiency for Fortune 500/50 clients.
Aviation Safety Inspector, APOI (Air Carrier Flight Oversight) U.S. Department of TransportationAviation Safety Inspector, APOI (Air Carrier Flight Oversight)DCRemote$90,925–$118,204 / yearMedical Requirements for All Positions: Applicants must be physically able to perform the duties of the Aviation Safety Inspector position in a safe and efficient manner, and must meet all of the following requirements: Have good distant vision in each eye and be able to read printed materials the size of typewritten characters (glasses and contact lenses permitted) without strain; Have the ability to hear the conversational voice (hearing aid permitted); Not have any physical condition that would cause them to be a hazard to themselves or others or that would interfere with their ability to fly as passengers in a variety of aircraft. Significant investments are advancing the research and development of autonomous vehicles, environmentally friendly electric aircraft, high-speed and long-endurance solar-powered aircraft, and new types of space vehicles.
Aviation Safety Inspector (AC - Flight Oversight APOI) U.S. Department of TransportationAviation Safety Inspector (AC - Flight Oversight APOI)Washington, DCRemote$107,446–$139,684 / yearSignificant investments are advancing the research and development of autonomous vehicles, environmentally friendly electric aircraft, high-speed and long-endurance solar-powered aircraft, and new types of space vehicles. The minimum medical requirements include the following requirements: Have good distant vision in each eye and be able to read, without strain, printed materials the size of typewritten characters (glasses and contact lenses permitted); Have the ability to hear the conversational voice (hearing aid permitted); and.
Aviation Safety Inspector (General Aviation - Maintenance) U.S. Department of TransportationAviation Safety Inspector (General Aviation - Maintenance)Washington, DC$133,060–$172,980 / yearThe minimum medical requirements include the following requirements: Have good distant vision in each eye and be able to read, without strain, printed materials the size of typewritten characters (glasses and contact lenses permitted); Have the ability to hear the conversational voice (hearing aid permitted); and. Significant investments are advancing the research and development of autonomous vehicles, environmentally friendly electric aircraft, high-speed and long-endurance solar-powered aircraft, and new types of space vehicles.
Aviation Safety Inspector (Rotorcraft-Helicopter) U.S. Department of TransportationAviation Safety Inspector (Rotorcraft-Helicopter)Washington, DC$133,060–$172,980 / yearThe Assistant Principal Inspector (Operations Rotorcraft/Helicopter) General Aviation, on a Large Helicopter Air Ambulance (HAA) CFR Part 135 certificate as a full assistant to a Principal Inspector (Operations) General Aviation performing the full range of certification, surveillance and inspection duties for assigned air carriers, air operators, air agencies, airmen, and designees. The minimum medical requirements include the following requirements: Have good distant vision in each eye and be able to read, without strain, printed materials the size of typewritten characters (glasses and contact lenses permitted); Have the ability to hear the conversational voice (hearing aid permitted); and.
Aviation Safety Inspector (Air Carrier Operations) (APOI) U.S. Department of TransportationAviation Safety Inspector (Air Carrier Operations) (APOI)Washington, DC$90,925–$118,204 / yearMinimum 100 flight hours during the last 3 years; Airline Transport Pilot Certificate or Commercial Pilot Certificate with instrument airplane rating (Department of Navy positions require pilot experience as demonstrated by previous ATP level performance in large multi-engine airplanes and helicopters); Possession of a valid second-class FAA medical certificate (For positions within the Department of Navy, applicants must also be physically qualified to ride as an observer aboard squadron aircraft. Medical Requirements: Applicants must be physically able to perform the duties of the Aviation Safety Inspector position in a safe and efficient manner, and must meet all of the following requirements: Have good distant vision in each eye and be able to read printed materials the size of typewritten characters (glasses and contact lenses permitted) without strain; Have the ability to hear the conversational voice (hearing aid permitted); Not have any physical condition that would cause them to be a hazard to themselves or others or that would interfere with their ability to fly as passengers in a variety of aircraft.
Aviation Safety Inspector (General Aviation Avionics) U.S. Department of TransportationAviation Safety Inspector (General Aviation Avionics)Washington, DC$133,060–$172,980 / yearThe minimum medical requirements include the following requirements: Have good distant vision in each eye and be able to read, without strain, printed materials the size of typewritten characters (glasses and contact lenses permitted); Have the ability to hear the conversational voice (hearing aid permitted); and. Evaluates requests to operate under conditions not previously specified in the maintenance portion of the operations specifications and approves or disapproves requests and provides additional conditions and limitations as needed.
Principal Systems Engineer-Defense Curtiss-WrightPrincipal Systems Engineer-DefenseAshburn, VirginiaAs a leading Modular Open Systems Approach (MOSA) solutions supplier for battlefield platforms and communication systems , we are uniquely positioned to benefit from the DoD's commitment to maintaining technological superiority on the battlefield. Curtiss-Wright's Defense Solution division is a trusted, proven leader, delivering superior products and services that meet the defense and aerospace industries' toughest challenges with best-in-class value.
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.
Systems Architect, Principal PeratonSystems Architect, PrincipalReston, Virginia$146,000–$234,000 / yearFull timeResponsibilities: Peraton is seeking a Systems Architect Principal to join our national intelligence program in Northern Virginia as the primary visionary and strategist to transition the client’s Enterprise IT Infrastructure to a cutting edge resilient, scalable and self-healing Infrastructure environment. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Principal Spacecraft Systems Engineer - Blue Ring (TS/SCI Required) Blue OriginPrincipal Spacecraft Systems Engineer - Blue Ring (TS/SCI Required)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. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.