• Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a **Senior System Administrator ** to join a dynamic team based in **Tysons Corner, VA** . This ... while supporting a small team responsible for managing a wide range of mission-critical systems . **Key Details** : + Work hours fall within the core shift range of… more
    Leidos (07/29/25)
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  • Systems Administrator

    ICF (Reston, VA)
    …analytics, and O&M for our customers. We are currently seeking to hire a System Administrator to support our projects. As a key member of our team, this role will ... and maintenance of software, hardware, and networks, with a focus on systems built using Java and .NET frameworks. + Monitoring system performance, troubleshooting… more
    ICF (07/29/25)
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  • Sr VMWare Systems Administrator

    Leidos (Alexandria, VA)
    …where you can thrive, keep reading!** **The Mission** Leidos is seeking a System Administrator to support a large enterprise IT contract for the DOD. This role ... is technical in VMware administration, providing senior-level support to other systems administrators on configuration best practices. This individual should be… more
    Leidos (07/29/25)
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  • System Administrator (Remote)

    Koniag Government Services (Chantilly, VA)
    …and security of the computers they manage meet the needs of the users + The systems administrator could be focused in one or more of the following areas: + ... Public Law 88-352** **Job Details** **Job Family** **IT, Cyber Security, Network Systems ** **Job Function** ** Systems Administrator ** **Pay Type** **Salary** more
    Koniag Government Services (07/31/25)
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  • Systems Administrator - Tier 3…

    GovCIO (Fairfax, VA)
    …referral to this job (https://careers-govcio.icims.com/jobs/4592/ systems - administrator tier-3-support/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) ... **Overview** GovCIO is currently hiring for a System Administrator - Tier 3 Support with an active Secret clearance in support of our DEA Bluestone program.… more
    GovCIO (06/03/25)
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  • Windows System Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator Senior with GDIT. A career in enterprise IT ... improving how agencies operate. At GDIT, people are our differentiator. As a Systems Administrator Senior you will help ensure today is safe and tomorrow is… more
    General Dynamics Information Technology (07/30/25)
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  • System Administrator , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Fort Belvoir, VA)
    …supporting the Department of Defense ( DoD ) ? We're looking for a systems administrator who spe cia lizes in working within classified environments supporting ... cybersecurity solutions for the Defense and Intelligence communities. As a systems administrator on our project, you'll install, maintain, audit, and support a… more
    BOOZ, ALLEN & HAMILTON, INC. (07/22/25)
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  • Systems Administrator - TS/SCI

    General Dynamics Information Technology (Fort Belvoir, VA)
    …**Public Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** System Administration,Technical Support,Troubleshooting **Certifications:** ... of a group of computers running on one or more operating systems . + Understand all the different systems that are monitored in the help desk and the Tier level… more
    General Dynamics Information Technology (07/16/25)
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  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a US Navy Training ... position provides technical leadership for complex simulation and training systems including requirements analysis, system integration, verification and validation,… more
    SimIS Inc. (06/23/25)
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  • Enterprise Senior Systems

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** Critical Systems ,Enterprise Servers,Operating ... **Job Description:** GDIT seeks a highly motivated and experienced Enterprise Senior Systems Engineer to support the Defense Threat Reduction Agency (DTRA) Defense… more
    General Dynamics Information Technology (08/08/25)
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