1,171 Results for

Principal Engineer Jobs in Dulles, VA

Jobs

Principal Flight Controls Engineer Electra

Manassas, VA

Electra.aero is seeking a Principal Flight Controls Engineer to serve as a senior technical authority and flight controls certification subject-matter expert for the EL9 Ultra Short Takeoff and Landing aircraft. This role works in close partnership with the Flight Controls System IPT Lead, providing deep expertise in certification, safety, and verification to support system development from detailed design through certification and entry into service.

30+ days ago

Principal Software Development Engineer - Frontend Re:Car

Washington

7+ years of experience leading frontend design and architecture across new and existing products, with a track record of making systems more maintainable, accessible, and performant at scale. You drive awareness of how frontend technical decisions impact product quality, customer experience, and business outcomes, balancing technical leadership with strong product judgment.

20 days ago

Senior Principal Release Train Engineer Navy Federal Credit Union

Vienna, VA

Accommodations: If you need accommodation or assistance for a qualifying condition to complete the online application (or during any stage of the hiring process), you can contact Navy Federal''s Medical Accommodations team at medicalaccommodations@navyfederal.org or by calling 1-888-503-6013. We provide a meaningful career experience, including a culture that is energized, engaged and committed; and fierce appreciation for our teams, who are rewarded with highly competitive pay and generous benefits and perks.

13 days ago

Principal System Engineer/Program Portfolio Manager KBR

Bethesda, MD

$148,900–$223,400 / year

KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. Innovative Projects: KBR's work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions.

30+ days ago

Principal Materials Engineer (Metallics) - Advanced Nuclear Technology X Energy LLC

Rockville, MD

$121,868–$203,113 / year

Perform and assist metallurgical analysis for the alloys selected for metallic systems, structures, and components of X-energy developed reactors, including pressure vessels and piping, reactor internals, heat exchangers, and other systems and components. Job Responsibilities: Develop and implement methodologies to qualify and characterize materials, especially metallic alloys, graphite, composites, and welding materials for nuclear reactor applications including in high temperature environments.

30+ days ago

Systems Engineer Sr Principal Science Applications International Corp

Chantilly, VA

$160,001–$200,000 / year

Duties will include coordinating and managing end to end architecture by scheduling assets, configuring, maintaining, and troubleshooting networking equipment, servers and processing systems. Support development organization with the integration of network hardware, software, cybersecurity upgrades and recap efforts for networks and systems operating at various classification levels.

30+ days ago

Principal Systems Engineer TalentRemedy

Herndon, Virginia

Operate across every technical pillar within Space Systems — payload, bus, ground, RF, timing, software, and verification - serving as the primary systems-integration authority during this phase of program growth and taking the highest-leverage technical integration workload off the Director of Space Systems. Drive execution through the broader engineering team - directing the PNT budget owner, timing scientist, RF link-budget owners, Integration and Test Engineer, and Timing Verification Engineer to produce the verification evidence you integrate into system-level closure.

30+ days ago

Principal Solutions Architect - (TAK/Mission Systems Integration) NexTech Solutions LLC

Gainesville, VA

Full time

Architect and integrate TAK Server and TAK clients, including ATAK, iTAK, WinTAK, and WebTAK, with mission packages, Cursor on Target (CoT) routing, federation, certificate management, and governed plugins and releases. Design and build secure Windows, Linux, virtualized, and containerized services across data centers and Azure, including networking, identity, PostgreSQL and object storage, monitoring, backups, and disaster recovery.

15 days ago

Principal ETL Developer Leidos Holdings Inc.

Bethesda, MD

$131,300–$237,350 / year

Collaboration and communication: Collaborate effectively with data architects, data engineers, application/service developers, and other stakeholders to translate business requirements into robust technical solutions and effectively communicate complex technical concepts to both technical and non-technical audiences. The candidate will be responsible for defining architectural best practices, optimizing performance in large-scale environments, and mentoring junior developers, ensuring the delivery of robust, scalable, and secure data flow solutions that drive critical customer needs.

12 days ago

Principal Product Manager, AI Infrastructure and Orchestration DataRobot Inc

Washington, WA

It does not own agent coordination and authoring (planner and router logic, memory strategy, multi-agent handoff, builder surfaces), workflow orchestration in the Airflow or Temporal sense, model quality and applied research, or cluster fabric work such as InfiniBand and RoCE tuning for distributed training. Deep technical understanding of GPU and accelerator behavior: topology-aware placement, fractional and time-sliced sharing, MIG, device plugins and the driver and container runtime plumbing underneath them, memory as the binding constraint, and what utilization costs when a tenant holds a GPU it is not saturating.

30+ days ago

Principal AI/ML Data Scientist - AI, Vector Search & Agentic AI Platforms Red Arch Solutions

Reston, VA

$255,000–$325,000 / year

This role requires a seasoned engineer capable of communicating complex technical concepts and architectural tradeoffs to senior leaders, helping leadership teams understand the operational, mission, security, and business implications of emerging AI technologies while driving successful implementation of enterprise capabilities. With extensive experience delivering AI and machine learning solutions in complex enterprise environments, you will serve as a technical leader responsible for architecting the data ecosystem that powers vector search, Retrieval-Augmented Generation (RAG), large language model (LLM) applications, and emerging Agentic AI capabilities.

2 days ago

Principal AI-Native Engineer Applied Information Sciences

Reston, Virginia

You’ll work on projects that matter, alongside industry-leading experts, in an environment that fosters innovation, driving client success, and empowering our team to make a lasting impact. Core Knowledge & Skills: Operates as a multi-domain subject matter expert (e.g., Security, Data) with industry depth, defines enterprise patterns, and guides adoption across solutions.

30+ days ago

Principal, Strategic Solution Engineer - Nonprofits Salesforce Inc

Washington, DC

$182,770–$244,510 / year

In California and New York, and select cities in the metropolitan areas of Boston, Chicago, Seattle, and Washington DC, the base pay range for this role in those locations is $201,110 - $269,080 per year. The world of work as we know it is changing and we're looking for Trailblazers who are passionate about bettering business and the world through AI, driving innovation, and keeping Salesforce's core values at the heart of it all.

7 days ago

Principal, Strategic Solution Engineer - Nonprofits Salesforce.com, Inc.

Washington, DC

$182,770–$244,510 / year

7 days ago

Principal AI/ML Data Scientist (Systems Architecture, Senior Associate) The Mil Corp

Reston, VA

$190,000–$245,000 / year

With extensive experience delivering AI and machine learning solutions in complex enterprise environments, the AI/ML Data Scientist will serve as a technical leader responsible for architecting the data ecosystem that powers vector search, Retrieval-Augmented Generation (RAG), large language model (LLM) applications, and emerging Agentic AI capabilities. This role requires a seasoned engineer capable of communicating complex technical concepts and architectural tradeoffs to senior leaders, helping leadership teams understand the operational, mission, security, and business implications of emerging AI technologies while driving successful implementation of enterprise capabilities.

30+ days ago

Cybersecurity Sales / Solutions Engineer Capgemini SE

Tysons Corner, VA

$94,248–$215,050 / year

It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem. The role requires broad cybersecurity domain knowledge, strong architectural expertise, confidence in 1-2 market industries, and the ability to lead technical responses to RFPs and complex proposals.

19 days ago

Sr. Principal Systems Engineer- IPT Lead Northrop Grumman Corp

McLean, VA

$142,200–$213,400 / year

This role reports to the program Engineering PM (EPM) and works with the program Chief Engineer, Lead Systems Engineer (LSE)/Systems Engineering Integration and Test (SEIT) Lead, and the Program Management Office (PMO) to deliver on program and stakeholder commitments. The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate''s experience, education, skills and current market conditions.

30+ days ago

Principal Network Engineer Mitre Corp

McLean, VA

$162,400–$203,000 / year

The Intelligent Network Services Department which is part of the MITRE Technology and Engineering Infrastructure, Networking, and Communications Division, has as its mission to provide premier communications network engineering services for our customers at all classification levels. Our engineers have expertise in research, design, analysis, modeling and simulation, lab experimentation, field testing, and implementation of networks across a diverse set of networked communication environments including virtual, wired, and wireless.

13 days ago

Principal Associate, Data Scientist - Capital One Personal Loan Capital One

McLean, Virginia

Currently has, or is in the process of obtaining one of the following with an expectation that the required degree will be obtained on or before the scheduled start date: A Bachelor's Degree in a quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Computer Science, or a related quantitative field) plus 5 years of experience performing data analytics. As a Data Scientist at Capital One, you’ll be part of a team that’s leading the next wave of disruption at a whole new scale, using the latest in computing and machine learning technologies and operating across billions of customer records to unlock the big opportunities that help everyday people save money, time and agony in their financial lives.

2 days ago

Federal Principal Lifecycle Engineer Verizon

Ashburn, Virginia

$118,000–$205,000 / year

Designs and implements computer and information networks, such as local area networks (LAN), wide area networks (WAN), intranets, extranets, and other data communications networks including Software Defined Networks (SDN) and Network Function Virtualization (NFV). Providing mentoring to other team members on networking, application design, engineering and automation while acting as the final escalation point to support production service issues in concert with application, operational, and triage teams.

13 days ago

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Principal Engineer Jobs in Dulles, VA

Principal Flight Controls Engineer Electra

Principal Software Development Engineer - Frontend Re:Car

Senior Principal Release Train Engineer Navy Federal Credit Union

Principal System Engineer/Program Portfolio Manager KBR

Principal Materials Engineer (Metallics) - Advanced Nuclear Technology X Energy LLC

Systems Engineer Sr Principal Science Applications International Corp

Principal Systems Engineer TalentRemedy

Principal Solutions Architect - (TAK/Mission Systems Integration) NexTech Solutions LLC

Principal ETL Developer Leidos Holdings Inc.

Principal Product Manager, AI Infrastructure and Orchestration DataRobot Inc

Principal AI/ML Data Scientist - AI, Vector Search & Agentic AI Platforms Red Arch Solutions

Principal AI-Native Engineer Applied Information Sciences

Principal, Strategic Solution Engineer - Nonprofits Salesforce Inc

Principal, Strategic Solution Engineer - Nonprofits Salesforce.com, Inc.

Principal AI/ML Data Scientist (Systems Architecture, Senior Associate) The Mil Corp

Cybersecurity Sales / Solutions Engineer Capgemini SE

Sr. Principal Systems Engineer- IPT Lead Northrop Grumman Corp

Principal Network Engineer Mitre Corp

Principal Associate, Data Scientist - Capital One Personal Loan Capital One

Federal Principal Lifecycle Engineer Verizon

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