Principal Software Engineer- Hybrid Envision Innovative SolutionsPrincipal Software Engineer- HybridColumbia, MDBuilds and deploys multiple applications across diverse tech stacks, including containerized React UIs, Java and Go microservices, custom REST security services, and data stores such as MongoDB and an OpenSearch cluster. Since 2008, we have supported critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions.
Senior Principal, ML/AI XometrySenior Principal, ML/AINorth Bethesda, MDFull timePlay a leadership role in identifying areas of opportunity — e.g., using ML/AI to unlock new revenue streams (e.g., rapid quoting for new manufacturing modalities, generative design for customers), reduce cost (e.g., automated quality inspection), or optimize efficiency (e.g., 3D-geometry classification, defect detection, generating manufacturing ready models) . Stay ahead of industry developments in ML, AI, generative AI, 2D/3D modeling and manufacturing tech; translate insights into the improvement of internal best practices, tooling, frameworks, model governance, data pipelines, and operationalization .
Principal PostgreSQL Engineer (TS/SCI) VantorPrincipal PostgreSQL Engineer (TS/SCI)Herndon, VirginiaThis role ensures high availability, performance, scalability, and security of mission-critical database environments while collaborating with software engineers, data engineers, DevSecOps teams, and system administrators to deliver reliable data services in a secure, cloud-enabled environment. We are seeking a Senior PostgreSQL Engineer to support the architecture, optimization, and operational support of PostgreSQL databases supporting a large-scale U.S. Government big data analytics platform.
Principal Radio Frequency Engineer Two Six Technologies IncPrincipal Radio Frequency EngineerHerndon, VA$215,924–$323,886 / yearThe 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.
Principal Program Manager (Mcicom Facilities Directorate) Concurrent TechnologiesPrincipal Program Manager (Mcicom Facilities Directorate)Arlington, VA$145,000–$185,000 / yearThe successful candidate will lead a multidisciplinary team supporting Marine Corps Installations Command (MCICOM) Facilities Directorate (G-F) enterprise programs, integrating facilities asset management, real estate, real property, capital investments, environmental training, regional installation support, and special projects to drive effective program execution and mission outcomes. The ERS Division is seeking a qualified and proactive Principal Program Manager to provide strategic program leadership and enterprise-level oversight for Marine Corps installation facilities, real property, capital investment, and infrastructure management programs.
Principal Risk Specialist (Global Payments Network) Capital One Financial CorpPrincipal Risk Specialist (Global Payments Network)McLean, VA$109,900–$125,400 / yearThe Global Payment Network Business Risk Office Governance team ensures effective governance and risk management across Discover Network, Diners Club International, and PULSE Network, ensuring Network or Participant impacting decisions are effectively challenged, approved, and socialized. 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.
Principal Software Engineer – Data & AI Blue OriginPrincipal Software Engineer – Data & AIWashingtonand/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, 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.
Principal Advisor- Emergency Management (Onsite, Top Secret with SCI eligibility required) MicroHealth, LLCPrincipal Advisor- Emergency Management (Onsite, Top Secret with SCI eligibility required)Vienna, VA$140,000–$150,000 / yearPosition Summary MicroHealth is seeking a Principal Advisor – Emergency Management to serve as the principal operational bridge between the Bureau of Diplomatic Technology's enterprise data platforms and the operational mission elements of the Department supported by those platforms — including but not limited to medical operations, State Operations, Diplomatic Security, and interagency crisis response partners. Professional Skills & Competencies 8+ years of progressively responsible experience in emergency management, crisis response, operational readiness assessment, mission assurance, continuity of operations, or related field, with at least 3 years in a federal civilian, military, intelligence community, or equivalent high-consequence operational environment.
Senior Principal Mission Engineer (Scenarios) Trusted Space, LLCSenior Principal Mission Engineer (Scenarios)Chantilly, VA$170,000–$200,000 / yearMaster’s Degree in Math, Science or Engineering with 15+ Years of demonstrated system engineering and integration experience with space, ground, operations and sustainment segments of DoW or NRO programs with a proven delivery record, or a bachelor’s degree in Math, Science or Engineering with 17+ years of demonstrated experience. Trusted Space is the premier provider of trusted autonomy and battlespace management software solutions enabling machine speed sensing, sense making, decision making, and acting for critical space and intelligence missions.
Principal Auditor, (Experienced Senior Auditor) AML/Fraud and Ethics Audits (Hybrid) Capital One Financial CorpPrincipal Auditor, (Experienced Senior Auditor) AML/Fraud and Ethics Audits (Hybrid)McLean, VA$109,900–$125,400 / yearPreferred Qualifications: Certified Fraud Examiner (CFE), Certified Anti-Money Laundering Specialist (CAMS), or Certified Regulatory Compliance Manager (CRCM), Certified Internal Auditor (CIA), or relevant certification. 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.
NewPrincipal Scientist, Flow Cytometry Precision for MedicinePrincipal Scientist, Flow CytometryFrederick, MDKey components will be focused on, design and development of innovative qualified and validated immunophenotyping (including high content flow cytometry assays up to 31 markers, receptor occupancy assays, tetramer/dextramer assays as well as immunophenotyping flow based assays), and antigen specific (ELISpot/Fluorospot) or other custom cell based assays. Act as internal expert on technical advances and industry trends to anticipate and act as a thought leader to management on all matters of major importance, initiate and/or recommend appropriate courses of action and identify those matters requiring policy interpretation or revision.
Principal Information Systems Security Officer SteampunkPrincipal Information Systems Security OfficerMcLean, Virginia$120,000–$145,000 / yearReview and update security authorization documents as needed, but at least annually; Conduct Contingency Plan tests at least annually and updating the plan; Perform system self-assessments as part of the customer's Ongoing Authorization program; Monitor and respond to Information Security Vulnerability Management (ISVM)/Patch Management. Specialized knowledge and experience with evaluating system, network, or infrastructure security controls against requirements such as FISMA, FIPS, and NIST guidelines Knowledge and experience with the vulnerability scanning execution, assessment, and analysis.
Principal Product Manager - Experience and Platform GEICO GENERAL INSURANCE COMPANYPrincipal Product Manager - Experience and PlatformBethesda, MD$140,425–$229,600 / yearYou will partner closely with CX designers, engineering, data, legal, and treasury to modernize and evolve GEICO's payment journeys, ensuring customers can pay, manage policies, and resolve issues with confidence and ease. Demonstrated experience in payments ecosystems (Card and bank payment processing, APMs, payment lifecycle, recurring payments).
Principal Risk Specialist Capital One Financial CorpPrincipal Risk SpecialistMcLean, VA$120,800–$137,900 / yearCertifications such as Certified Information Systems Auditor (CISA), Certified in Risk and Information Systems Control (CRISC), Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM) or Certified Public Accountant (CPA). You will be performing/supervising routine technology risk and control activities while also working across the enterprise to develop and implement strategic technology risk management solutions that ensure Capital One's continued stability and success.
Principal Engineer, Security Architecture - DGX Cloud NVIDIAPrincipal Engineer, Security Architecture - DGX CloudUs, WashingtonSecurity here is fleet horizontal and stack vertical, so your work will cross every DGX Cloud engineering organization: you will embed with the teams building GPU clusters, control planes, and services, join their designs as a participant rather than an approver, and leave behind systems in which an entire class of risk is no longer possible. Multi-Functional Collaboration: Partner with DGX Cloud platform, production engineering, and network security teams, and with NVIDIA's central security organization, to make the secure path real in CI/CD and in the hardware lifecycle.
Principal Signals Software Engineer Envision Innovative SolutionsPrincipal Signals Software EngineerColumbia, MD$190,000–$215,000 / yearAt least 12 years' experience as a Signals Software Engineer or equivalent on a project with a focus on Radio Frequency (RF) to include experience with Fourier transforms, filtering, communications theory, digital modulation, error control coding, signals analysis tools (e.g. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories.
NewAutomation Principal Engineer Wells Fargo & CoAutomation Principal EngineerMcLean, VA$159,000–$305,000 / yearThey are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. Lead the strategy and resolution of highly complex and unique challenges requiring in-depth evaluation across multiple areas or the enterprise, delivering solutions that are long-term, large-scale and require vision, creativity, innovation, advanced analytical and inductive thinking.
Principal Space Systems Research And Development Engineer Black Sky IncPrincipal Space Systems Research And Development EngineerHerndon, VA$180,000–$215,000 / yearAs a principal engineer in the Space Systems R&D group, you will lead the technical development of a portfolio of innovative satellite-related technologies to deliver validated, high-impact prototypes that are ready for integration into BlackSky's operational capabilities. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
NewPrincipal Software Engineer VantorPrincipal Software EngineerHerndon, Virginia$220,000–$242,000 / yearWorking within an Agile DevSecOps environment, the Senior Developer collaborates with ontology engineers, software engineers, database engineers, data engineers, and Government stakeholders to deliver high-quality software that supports operational mission requirements. This position develops application services, APIs, user interfaces, and backend components that leverage enterprise ontologies, knowledge graphs, and Semantic Web technologies to support data interoperability and mission workflows.
Principal Systems Architect - Enterprise AI III 6706 Metrostar SystemsPrincipal Systems Architect - Enterprise AI III 6706Washington, DC$166,000–$202,000 / yearDefine technical strategy, reference architectures, and guardrails; assure engineering excellence, security‑by‑design, and interoperability across enclaves. As Principal Systems Architect - Enterprise AI III (6706), you'll serve as chief technologist across software architecture, AI/ML systems, data and enterprise integration.