• Modeling and Simulation Engineer

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

    SAIC (Chantilly, VA)
    …experience in modeling and simulation for aerospace or space systems. + Active Top Secret /SCI w/Poly Clearance. + Strong understanding of sensor phenomenology ... **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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  • Senior Systems Engineer

    Leidos (Alexandria, VA)
    …VA + Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a Polygraph. **Primary ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations,… more
    Leidos (10/11/25)
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  • Mid-Level Systems Engineer

    Leidos (Chantilly, VA)
    …VA + Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a Polygraph. **Primary ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations,… more
    Leidos (10/11/25)
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  • Agile Management Engineer

    Sciolex Corporation (Chantilly, VA)
    …technical and programmatic requirements. Qualifications & Physical Requirements + Active Top Secret /SCI clearance with Poly-5+years' experience working within ... to ensuring you receive the utmost employee care. Responsibilities As an Agile Management Engineer you will have the opportunity to support a wide variety of program… more
    Sciolex Corporation (10/09/25)
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  • Acquisition System Engineer

    Sciolex Corporation (Chantilly, VA)
    …program development processes and activities . Qualifications & Physical Requirements + Active Top Secret /SCI with Polygraph. + Bachelors and nine (9) years or ... care. Responsibilities We are seeking a highly motivated acquisition system engineer that will provide Acquisition and Program Management Support to multiple… more
    Sciolex Corporation (10/09/25)
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  • Systems Engineer

    SAIC (Arlington, VA)
    …deep web and dark web. Clearance/Citizenship Requirements: + US Citizenship with an active Top Secret Clearance with ability to obtain SCI (Active and/or PR ... **Description** Seeking a Senior Systems/Network Engineer , working with a diverse team of contractors,...engineering and integration; enterprise IT, including cloud services; cyber; software ; advanced analytics and simulation; and training. We are… more
    SAIC (09/20/25)
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  • Data Dissemination Engineer

    Parsons Corporation (Fort Belvoir, VA)
    …utility programs. + ActivTS/SCI Clearance required **Security Clearance Requirement:** An active Top Secret SCI security clearance is required for this ... Parsons is looking for an amazingly talented **Data Dissemination Engineer ** to join our team! **What You'll Be Doing:**...Ability to design, develop, document, test, and debug application software . + Knowledge of conducting analysis and skills to… more
    Parsons Corporation (09/08/25)
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  • IT Systems Security Engineer

    SAIC (Springfield, VA)
    **Description** SAIC is seeking a well-qualified Security Engineer to join an exciting program supporting our customer's Office of Security. This position is located ... This program is able to quickly adjudicate a polygraph for those with an active TS /SCI clearance. **An active TS /SCI is required to be considered for this… more
    SAIC (10/07/25)
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  • Test Engineer

    Koniag Government Services (Vienna, VA)
    Kadiak, LLC, a Koniag Government Services company, is seeking a Test Engineer with a TS /SCI security clearance to support Kadiak and our government customer in ... three weeks paid time off, and more. The Test Engineer will analyze business requirement to develop and execute...large-scale database management services and the development of complex software to satisfy design objectives. + TS /SCI… more
    Koniag Government Services (10/09/25)
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