• Machine Learning Modeling and Simulation…

    SAIC (Chantilly, VA)
    …+ 3+ years of experience in modeling and simulation for aerospace or space systems . + Active Top Secret /SCI w/Poly Clearance. + Strong understanding ... **Description** SAIC is seeking a Machine Learning Modeling and Simulation Engineer in Chantilly, VA. The successful candidate will: + Develop and maintain… more
    SAIC (10/22/25)
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  • Modeling and Simulation Engineer Senior I

    KBR (Reston, VA)
    …basis + Proficiency in C++, Python, or other programming language + Active Top - Secret clearance with ability to obtain Sensitive Compartmented Information (SCI) ... Title: Modeling and Simulation Engineer Senior I Belong. Connect. Grow. with KBR!...contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future… more
    KBR (11/13/25)
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  • Sr Engineer - Federal

    Lumen (Herndon, VA)
    …division multiplexing + **Candidate must be a US Citizen with an active TOP SECRET /SCI Level clearance** Preferred Qualifications + Bachelor's degree and/or ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...validation. As a technical and hands-on position, the Senior Engineer will be responsible for systems in… more
    Lumen (10/28/25)
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  • Systems Engineer

    Acclaim Technical Services (Reston, VA)
    … workplace among DC area firms and continues to grow. We are actively hiring a Systems Engineer with TS /SCI clearance and polygraph supporting a new contract ... will have at least 7 years' experience using a holistic approach to systems engineering. Designs, develops, evaluates and modifies end-to-end systems and … more
    Acclaim Technical Services (11/18/25)
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  • SETA Systems Engineer

    SAIC (Sterling, VA)
    **Description** Are you a highly motivated Systems Engineer looking for a rewarding opportunity to make a significant impact? SAIC has an immediate opening for ... an innovative Systems Engineering Technical Advisor (SETA) to provide direct customer...key test events **Qualifications** + Must currently hold a TS /SCI and Polygraph clearance + Bachelor's Degree in an… more
    SAIC (10/30/25)
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  • Federal Laboratory Systems Engineer

    SAIC (Chantilly, VA)
    …capabilities and solutions for the Intelligence Community, is seeking a **Federal Laboratory Systems Engineer ** to provide systems engineering and technical ... **Description** SAIC, a leading provider of systems development & deployment, targeting & intelligence analysis, systems engineering & integration, and training… more
    SAIC (10/31/25)
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  • Network Systems Engineer

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking an experienced Network System Engineer to provide technical support to our program based in Chantilly. The successful candidate will ... be responsible for a variety of tasks including systems services administration, server provisioning, network integration, repository management, network-attached… more
    SAIC (10/23/25)
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  • Systems Engineer

    Leidos (Chantilly, VA)
    **Description** Leidos Intelligence Group is seeking a highly technical Systems Engineer to support an enterprise IT program.This work is being done to replace ... Systems Engineers will install, configure, and test; operating systems , application software , and system management tools;...in small groups. **Basic Qualifications** + Must have a TS /SCI with Poly to be considered + Must have… more
    Leidos (09/26/25)
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  • Systems Engineer

    Cinteot (Herndon, VA)
    Systems Engineer Location - Herndon, VA Job Description: With our employees as our priority, we provide diverse career opportunities designed to propel ... and integration of cross-functional solutions consisting of IT Hardware, COTS Software , and IT Architecture solutions. + Experience in performing system requirements… more
    Cinteot (11/06/25)
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  • AWS DevSecOps Engineer

    Leidos (Fort Belvoir, VA)
    …mitigation activities, and collaborative solution design. Cross-functional flexibility across systems engineering, software development, testing, and security is ... has a new and exciting opportunity for a **DevSecOps Engineer ** in either Fort Belvoir, VA or Picatinny Arsenal,...Secret clearance with the ability to obtain a TS /SCI clearance.** **Primary Responsibilities:** + Design and secure scalable… more
    Leidos (09/17/25)
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