• Systems Engineer

    KBR (Chantilly, VA)
    …25% + Working Hours: Core hour support required Qualifications: Required: + Active TS / SCI with polygraph clearance + Bachelor's degree in STEM (science, ... Projects: KBR's work is at the forefront of engineering, logistics, operations , science, program management, mission IT and cybersecurity solutions. + Collaborative… more
    KBR (12/17/25)
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  • Mid-Level Modeling and Simulation Engineer

    KBR (Chantilly, VA)
    …Generate and maintain technical documentation and reports Minimum qualifications: + Active TS / SCI with Polygraph + Bachelor's degree (Master's degree preferred) ... Projects: KBR's work is at the forefront of engineering, logistics, operations , science, program management, mission IT and cybersecurity solutions. + Collaborative… more
    KBR (12/16/25)
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  • Sr. Solution Architect

    Leidos (Chantilly, VA)
    …years of relevant experience will be considered. *US citizen with an active TS / SCI with Poly security clearance Preferred Qualifications *Prior experience as ... domains-AI, Cyber, Quantum, Software Engineering, Digital Modernization, Cloud Migration, or Mission Operations with proven ability to apply it to shape the future… more
    Leidos (12/13/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    …of patch management systems and group policy configuration **Clearance Requirements:** + Active TS / SCI with CI Polygraph is required for this position **Physical ... of complex network and system infrastructures. You will help drive key Operations and Maintenance (O&M) activities while leveraging strong technical expertise and… more
    ManTech (12/13/25)
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  • Project Engineer- Agile Coach

    Noblis (Chantilly, VA)
    …and adaptability. Required Qualifications + US Citizenship is required + Active ** TS / SCI with Polygraph** clearance + Bachelor's degree in Engineering, Computer ... experience coaching agile teams in government or defense environments. + Strong knowledge of agile frameworks (Scrum, SAFe, Kanban) and tools (Jira, Confluence). +… more
    Noblis (12/10/25)
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  • Integration Solutions Engineer

    SAIC (Chantilly, VA)
    …and four (4) years or more experience. + Must be a US Citizen with active TS / SCI security clearance with CI polygraph. + Experience working within the IC. + ... that provides global, persistent, real-time surveillance and activity-based intelligence information . As an Integration Solutions Engineer you will be involved… more
    SAIC (12/06/25)
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  • Senior Cloud Engineer

    SAIC (Chantilly, VA)
    …and nine (9) years or more experience. + Must be a US Citizen with active TS / SCI security clearance with CI polygraph. + Experience working within the IC. + ... that provides global, persistent, real-time surveillance and activity-based intelligence information . As a Cloud Engineer, you will architect, build, and… more
    SAIC (12/06/25)
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  • Technical Training Coordinator (Program Support…

    M. C. Dean (Chantilly, VA)
    …and must meet eligibility requirements, including US Citizenship, for access to classified information ; **ACTIVE TS / SCI w/ POLYGRAPH is REQUIRED** **Required ... to support a dynamic technical program through training coordination and administrative operations . This role is ideal for someone who thrives in a fast-paced… more
    M. C. Dean (12/06/25)
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  • Senior Counterintelligence Referent

    ManTech (Chantilly, VA)
    …Development & Acquisition (RDA). **Clearance Requirements:** + Must have a current/active TS / SCI w/Polygraph. **Physical Requirements:** + Must be able to remain ... Customer Security staff and supporting mission assurance across daily operations , critical infrastructure, Research, Development, and Acquisition (RDA), and major… more
    ManTech (12/03/25)
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  • Cybersecurity Engineer 6

    M. C. Dean (Chantilly, VA)
    …and may meet eligibility requirements, including US Citizenship, for access to classified information ; **ACTIVE TS / SCI w/ POLY REQUIRED** **Education:** + 9+ ... federal, local and commercial customers across high-growth markets. Responsibilities ** Information System Security Engineer Position Summary** In this position you… more
    M. C. Dean (11/28/25)
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