• Sr. O&M Network Engineer

    Leidos (Chantilly, VA)
    …routing, switching, Internet Protocol (IP) subnet, Network Address Translation (NAT) and security technologies. + Demonstrated ability to engineer and modify ... at Leidos is seeking a Tier III O&M Network Engineer to support the customer's various wide area networks...Not required but experience with Palo Alto, Cisco Adaptive Security Appliance (ASA), and Forcepoint firewall equipment and applications… more
    Leidos (12/02/25)
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  • R & D Architect Support Engineer /Systems…

    KBR (Chantilly, VA)
    …Requirements: Minimal 0-20% + Working Hours: Standard/Flexible Qualifications: Required: + Security Clearance Requirements: TS /SCI with Polygraph required + ... Title: R & D Architect Support Engineer /Systems Engineer Belong. Connect. Grow. with...in designing and optimizing defense systems that ensure national security and shape the future of space defense. Key… more
    KBR (12/29/25)
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  • Senior Network Engineer (Engineering Change…

    Competitive Range Solutions, LLC (Arlington, VA)
    …Active TS /SCI Clearance 2+ years as senior or lead engineer in planning, designing, and building software-defined networks. 3+ years DoD environment ... Range Solutions requires the expertise of a talented and experienced Senior Network Engineer to assist in the direction and management of the program's executive… more
    Competitive Range Solutions, LLC (11/06/25)
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  • Systems Engineer

    Nightwing (Sterling, VA)
    …the intelligence community, defense, civil, and commercial markets. Job Title: Systems Engineer Location: Sterling, VA Clearance: TS /SCI Poly **This position is ... CONTINGENT upon contract award** The Systems Engineer (SE) collaboratively works closely with the Sponsor, leadership and P&O Teams to identify, understand, and… more
    Nightwing (12/26/25)
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  • Cloud Engineer

    ICF (Reston, VA)
    …together on the right solutions for the customer. We are looking for a seasoned Cloud Engineer who will be a key driver to make this happen. **What will you be ... doing?** As an AI-focused Cloud Engineer , you'll design and implement the foundational AWS infrastructure that powers our scalable AI platform. Your focus will be on… more
    ICF (11/21/25)
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  • Senior Network Engineer

    SAIC (Norfolk, VA)
    …experience, or significant relevant experience in lieu of a degree. + Must have an Active TS /SCI Security Clearance. + Must be a US Citizenship. + Security + ... **Description** SAIC is seeking a talented **Senior Network Engineer ** to join our team in support of the Tactical Network (TACNET) program, providing critical… more
    SAIC (11/22/25)
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  • Network Engineer 4

    M. C. Dean (Springfield, VA)
    …leaders in electrical, engineering, and cybersecurity industries. We are seeking a **Network Engineer 4** to join our ** Security and Electronic Systems (SES)** ... meet eligibility requirements, including US Citizenship, for access to classified information . **ACTIVE TS /SCI is REQUIRED** **Education:** + Bachelor's degree… more
    M. C. Dean (01/08/26)
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  • Radar Research Engineer

    KBR (Chantilly, VA)
    …Research Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our ... Posting Description KBR is looking for a Radar Research Engineer to join our team in Chantilly, Virginia. In...a radar or signal processing discipline. Clearance Requirements: . TS /SCI security clearance . Preferred: Poly Ready… more
    KBR (01/10/26)
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  • Lead Network and Infrastructure Engineer

    ManTech (Herndon, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Lead Network and Infrastructure Engineer ** to join our team in **Herndon, VA.** The Lead Network and ... Infrastucture Engineer will design, implement, and maintain secure and scalable...architecture efforts, oversee implementation, and ensure compliance with government security standards across complex environments, as well as lead… more
    ManTech (01/08/26)
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  • Network Infrastructure Engineer I, Amazon…

    Amazon (Warrenton, VA)
    …be a US Citizen and must currently possess and maintain an active TS /SCI security clearance with polygraph. Key job responsibilities - Clearly communicate ... team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You'll collaborate with… more
    Amazon (12/24/25)
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