UNKNOWN

FEED

SAIC supports the Office of the Under Secretary of War for Research and Engineering (OUSW R&E) in ensuring the defense acquisition community has the research and engineering capabilities required to define, develop, test, operate, and sustain defense systems across the acquisition life cycle. A successful candidate will work as part of a team analyzing defense systems to identify hazards, categorize risk, and recommend mitigation to reduce the probability/severity of a mishap resulting in injury to personnel, equipment damage, and/or damage to the environment.

YEAR

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Science Applications International Corp

Systems Engineer Principal

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Comprised primarily of highly trained mechanical and aerospace engineers, VSD provides national expertise in the areas of vehicle engineering; guidance, navigation, and controls; robotics; electro-mechanical devices; embedded systems; fluid mechanics; propulsion; thermal control; orbital mechanics; mechanisms; structures; structural dynamics; and dynamic environments. As a Structural Mechanics Project Engineer (Project Engineer - Interdisciplinary Vehicle Engineering and Integration) in the Structural Mechanics Integration Office, you will join a team of engineers, working across our Structural Mechanics Subdivision and programs, to develop multi-disciplinary solutions to the hardest structural mechanics related problems in the industry.

The Aerospace Corporation is a national nonprofit corporation that operates a federally funded research and development center and has more than 4,600 employees. With major locations in Chantilly, Virginia; El Segundo, California; Albuquerque, New Mexico; and Colorado Springs, Colorado, Aerospace addresses complex problems across the space enterprise and other areas of national and international significance through agility, innovation, and objective technical leadership. For more information, visit www.aerospace.org.

The Aerospace Corp

Structural Mechanics Project Engineer

Provide expert systems engineering and integration (SE&I) support to NNSA weapons modernization programs through technical analyses including systems architecture, technology development planning, organizational effectiveness studies, risk assessments, and lifecycle acquisition program reviews to enhance efficiencies and support decision-making. Building on The Aerospace Corporation's reputation as a trusted, impartial advisor with integrity and dedication to mission success, the Civil Systems Group (CSG) combines deep technical expertise with market-leading innovation to help our customers solve complex systems engineering and integration challenges.

NNSA Defense Programs Engineer

FULL_TIME

The Cloud Software Engineer Level 2 Engineer provides cloud software research, development, and engineering services to include requirements analysis, software development, installation, integration, evaluation, enhancement, sustainment, testing, validation, and issue diagnosis/resolution. Build, deploy, and manage containerized applications using Docker, emphasizing optimized image layering, security, Implement Infrastructure as Code (IaC) to automate provisioning, configuration, and management of cloud resources.

HOUR

Wyetech

Cloud Software Engineer 2

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As a core component of EED, the Emerging Missions Flight Dynamics Department (EMFDD) provides flight mechanics expertise for the cislunar domain, multi-objective "traveling salesman" trajectory sequence generation, facility location optimization, and trans-atmospheric flight design for missiles, hyperglide vehicles, and reentry vehicles. Experience with nonlinear programming (non-linear programming), direct methods, gradient-based optimization, parameter optimization, genetic algorithms, evolutionary algorithms, heuristic optimization methods, indirect methods, and/or calculus of variations.

Multi-Domain Trajectory Design Engineer

Have a background in researching and developing vehicle designs for multiple applications, including missiles, hypersonics, autonomous aerial vehicles, autonomous underwater vehicles, and submersibles. 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.

Johns Hopkins Applied Physics Laboratory

Concept Design Engineer

[AW]-iCims

In this role, the candidate must be able to analyze user needs, conceptualize solutions, determine feasibility of design, and know how to apply new technologies to allow for improvement to existing or development of new critical software applications within our client organization. This is an exciting opportunity for a successful applicant to develop new software products or major enhancements to existing software for our customers at the Army’s DEVCOM C5ISR Research Technology Integration Directorate.

Trideum Corporation

Software Engineer

clearcompany

The pay range for the states of California, Colorado, Connecticut, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Ohio, Vermont, Virginia, Washington, and the District of Columbia is: $159,300—$180,100 USD What We Believe As a company wholly dedicated to serving the US federal government, we bring together the best talent to help reinvent how federal agencies operate and deliver greater value for their mission and the American people. As required by local law, Accenture Federal Services provides reasonable ranges of compensation for hired roles based on labor costs in the states of California, Colorado, Connecticut, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New York, Ohio, Vermont, Virginia, Washington, and the District of Columbia .

Accenture Federal Services

Senior IT Engineer

GreenHouseAPI

Have at least two years of practical MBSE experience developing mission architectures using UAF, with hands‑on UML/SysML/UAF modeling in tools such as Cameo/MagicDraw, Rhapsody, or Sparx EA, and the ability to link operational needs to system capabilities using the mission engineering process. The Mission Engineering Group develops enterprise-grade, distributed software and decision-support tools that enable warfighters to harness a wide-ranging set of sensors, weapons, and platforms for precision strike missions critical to our nation’s defense.

Systems Engineer

The National Systems Group serves as the technical adviser to the Intelligence Community and its mission partners involved in the collection and distribution of national and tactical intelligence, including electronics programs, advanced technologies, ground and communications, imagery programs, and systems engineering and launch. We seek a Space Systems Engineer (Project Engineer/Senior Project Engineer - Engineering Program Management and Systems Engineering) for system conceptualization, implementation, and program management support to a dynamic and growing US Government customer.

Space Systems Engineer

Identify & Analyze Identify and maintain awareness of technical data sources to support intelligence analysis; obtain access to these sources; develop and perform queries; conduct initial quantitative and qualitative analysis; develop analytic judgments (e.g., relevance, vulnerabilities); and prepare briefings/reports on methodology and results. Risk Management & Mitigation Analyze client projects, programs, and enterprise readiness activities using critical thinking and numerical/quantitative approaches to identify technical risks, critical elements, failure susceptibilities, or vulnerabilities.

Eleccion

Systems Engineer, Mid-Level

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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. Have a background in researching and developing vehicle designs for multiple applications, including missiles, hypersonics, autonomous aerial vehicles, autonomous underwater vehicles, and submersibles.

Modeling & Simulation Engineer

Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

<p>Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.</p>

Booz Allen Hamilton Inc.

Zscaler Engineer

SPA provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. SPA is hiring a Network Engineer to provide design, implementation, monitoring, and management support of secure change-controlled local and wide area networks to ensure maximum uptime for users and mission.

Systems Planning and Analysis, Inc. (SPA) provides top-level decision makers with timely and objective assessments that integrate the technical, operational, programmatic, policy, and business aspects of national security issues. SPA is headquartered in Alexandria, with offices throughout Metro DC, and San Diego, CA. SPA has been recognized with awards including Government Contractor of the Year by the Greater Washington Government Contractor Awards, as a Best Places to Work by the Washington and San Diego Business Journals for several years, a Top Workplace by the Washington Post, and as one of DC's Healthiest Employers.

Systems Planning and Analysis

Network Engineer

Actual compensation will be determined based on a variety of factors, including relevant experience, education, certifications, skills, security clearance level, geographic location, market conditions, and internal equity. We’re looking for thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions and want to apply their talents supporting customers with difficult and important mission sets.

Redhorse Corporation

Principal Information System Security Engineer (ISSE)

June 8, 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

GPU Software Engineer

IRecruitee

Support cybersecurity efforts throughout the RMF process to include the development and management of System Security documentation, Plans of Action and Milestones (POA&Ms), assessing and auditing systems security controls, and continuous monitoring of controls. As one of the most geographically diverse international defense companies, we deliver a full range of products and services spanning air, land, maritime, space, and cyber, including advanced electronics, intelligence solutions, and dedicated customer support.

BAE Systems Plc

Cybersecurity Engineer

OTHER

McLean, VA: $197,300 - $225,100 for Full-stack Engineer 4. 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. Utilize programming languages like Java, Scala, Python, Go, Node.js, JavaScript and TypeScript, Open Source RDBMS and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of AWS tools and services.

Capital One

Full Stack Engineer - 4

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The actual base pay offered is determined by several variables, including, as appropriate, the applicant's qualifications for the position, years of relevant experience, distinctive skills, level of education attained, certifications or other professional licenses held. Company Overview: Chevy Chase Trust is a privately owned investment think tank offering independent and highly personalized financial advice and planning for individuals, families, and institutions.

Saul Centers Inc

Associate, Software Engineer

We are seeking an AI Assurance Engineer to help develop and execute comprehensive evaluations of generative AI models and agentic systems, leveraging state-of-the-art testing methodologies, measurement techniques, and assurance frameworks. 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.

Research Engineer Jobs in Herndon, VA

Systems Engineer Principal Science Applications International Corp

Structural Mechanics Project Engineer The Aerospace Corp

NNSA Defense Programs Engineer The Aerospace Corp

Cloud Software Engineer 2 Wyetech

Multi-Domain Trajectory Design Engineer The Aerospace Corp

Concept Design Engineer Johns Hopkins Applied Physics Laboratory

Software Engineer Trideum Corporation

Senior IT Engineer Accenture Federal Services

Systems Engineer Johns Hopkins Applied Physics Laboratory

Space Systems Engineer The Aerospace Corp

Systems Engineer, Mid-Level Eleccion

Modeling & Simulation Engineer Johns Hopkins Applied Physics Laboratory

Zscaler Engineer Booz Allen Hamilton Inc.

Network Engineer Systems Planning and Analysis

Principal Information System Security Engineer (ISSE) Redhorse Corporation

GPU Software Engineer Leidos

Cybersecurity Engineer BAE Systems Plc

Full Stack Engineer - 4 Capital One

Associate, Software Engineer Saul Centers Inc

AI Assurance Engineer Johns Hopkins Applied Physics Laboratory

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