• Network Administrator Senior

    GovCIO (Alexandria, VA)
    **Overview** GovCIO is currently hiring a **Senior Network Administrator ** to manage secure network operations in support of the US Coast Guard. This hybrid role is ... to align network resources with mission requirements. + Participate in technical reviews and change control boards; provide expert recommendations on design… more
    GovCIO (12/24/25)
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  • Secret Cleared System Administrator

    Insight Global (Arlington, VA)
    Job Description The Infrastructure & Systems Administrator is responsible for maintaining, securing, and optimizing the organization's Microsoft 365 and on-premises ... and overall business objectives. The ideal candidate will bring strong technical expertise, a security-first mindset, and the ability to automate, improve,… more
    Insight Global (12/23/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled **Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... key Operations and Maintenance (O&M) activities while leveraging strong technical expertise and collaborative problem-solving to maintain optimal system… more
    ManTech (12/13/25)
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  • Senior System Cloud Administrator

    Insight Global (Herndon, VA)
    …Global's SaaS Client is seeking a highly skilled Senior Systems Cloud Administrator with strong experience in Microsoft Azure, Windows Server administration, and ... standards. * Provide training or knowledge-sharing to IT operations and other technical teams. Systems Lifecycle & Backup * Perform builds, upgrades, and lifecycle… more
    Insight Global (12/04/25)
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  • Windows Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a skilled and motivated **Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in **Chantilly, ... and enhancing the Sponsor's Windows environment, contributing to national security through technical excellence. This dynamic role is embedded in an innovative Big… more
    ManTech (12/03/25)
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  • Contracts Administrator

    Chenega Corporation (Lorton, VA)
    Contracts Administrator Lorton, VA Join our Talent Network This job is contingent upon position availability. C-MIOS-24-001 Are you ready to enhance your skills and ... staff. + Create and maintain a professional interface with all technical and business departments, management, and government personnel, like contracting… more
    Chenega Corporation (12/01/25)
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  • Subcontracts Administrator (DOD SkillBridge…

    SOS International LLC (Reston, VA)
    …security missions worldwide. **Job Description** Overview SOSi is seeking a Subcontracts Administrator to participate in our DOD SkillBridge program and work at our ... + Experience with direct international purchases and deliveries of complex or technical supplies or services to high-risk countries. + Knowledge of US Customs… more
    SOS International LLC (11/21/25)
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  • Senior System Administrator

    SAIC (Fort Belvoir, VA)
    **Description** The Senior System Administrator will provide support for operational intelligence integration and data-centric operations for customers across ... areas of technological research and advancements. Prime spokesperson on company's technical capabilities and future directions. Often instrumental in attracting and… more
    SAIC (11/19/25)
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  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to the Warfare Analysis and Digital ... network usage. Special Skills/Knowledge/Training Required: + BS Degree in a business, technical or engineering field. + Certification in LINUX operating systems +… more
    SimIS Inc. (11/06/25)
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  • Network Administrator

    Leonardo DRS, Inc. (Arlington, VA)
    …visit www.leonardodrs.com . **Job Summary** As a cleared SIPR Network and System Administrator and a member of the Corporate Risk Management Framework (RMF) Support ... hardening (STIGs) networks, with an additional requirement for expansive knowledge and technical skills to administer and harden servers, databases, and other system… more
    Leonardo DRS, Inc. (11/05/25)
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