• OS Administrator Windows

    CACI International (Chantilly, VA)
    OS Administrator Windows Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... US * * * **The Opportunity:** CACI is looking for an Operating Systems ( OS ) Administrator Windows to support the Department of the Air Force (DAF) Enterprise… more
    CACI International (08/22/25)
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  • Windows Systems Administrator

    ManTech (Laurel, MD)
    …similar scope, type, and complexity + Experience with configuring, maintaining and modernizing a Windows OS environment + Experience with patching Windows ... **Mantech** seeks a motivated and career-oriented ** Windows Systems Administrator ** to join our...issues, maintain system integrity, configure network components, and implement OS enhancements to improve reliability and performance + Must… more
    ManTech (07/23/25)
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  • Senior Windows Systems Administrator

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Windows Systems Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD Position Overview: The Senior Windows Systems ... management of enterprise systems, storage, patching, and endpoint solutions across Windows platforms. The role ensures the performance, reliability, and security of… more
    Black Bear Technology Solutions, LLC (08/23/25)
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  • Windows System Administrator

    ManTech (Laurel, MD)
    …20 years of relevant experience + Experience with configuring, maintaining and modernizing a Windows OS environment + Experience with patching Windows OS ... **MANTECH** seeks a motivated and career-oriented ** Windows ** **Systems Administrator ** to join our...issues, maintain system integrity, configure network components, and implement OS enhancements to improve reliability and performance + Must… more
    ManTech (08/22/25)
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  • Windows Systems Administrator

    Leidos (Arlington, VA)
    **Description** We are currently seeking a Windows Systems Administrator to join the Compartmented Enterprise Services Office (CESO) effort. This program is ... and 4+ years of overall related experience with a Windows servers environment (eg 2008r2 and 2012r2). Additional experience,...BMC Remedy. + ITIL v3 Foundation certified + Linux OS experience. + Solaris OS experience. +… more
    Leidos (07/18/25)
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  • Senior Systems Administrator III…

    V2X (Springfield, VA)
    …Activation Services, both AD-based Activation (ADBA) and Key Management Services (KMS), for Windows OS and Microsoft Office product offerings. + Familiarity with ... Server 2016 and Global Information Assurance Certification (GIAC) Certified Windows Security Administrator (GCWN) certified. Microsoft Certified Solution Expert… more
    V2X (09/05/25)
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  • Systems Administrator (TS/SCI with Poly…

    General Dynamics Information Technology (Chantilly, VA)
    …of related experience **US Citizenship Required:** Yes **Job Description:** The System Administrator will manage and administer Windows and Linux resources and ... enterprise suites + Hands on experience with hardening, patching or troubleshooting Linux OS systems + Hands on experience with Windows Active Directory +… more
    General Dynamics Information Technology (09/11/25)
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  • Sccm/MCM System Engineer (TS/SCI w/ Polygraph)

    COMSO, Inc (Annapolis Junction, MD)
    …across multiple air-gap networks + 5-10 years of computer/IT professional experience with Windows Server Administrator , Windows Server 2016, 2019 or 2022 ... file access permissions needed to resolve issues + Proficient with troubleshooting Windows Desktop and Server OS + Managing a desktop OS image for large… more
    COMSO, Inc (07/18/25)
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  • Principal Systems Administrator - active…

    V2X (Springfield, VA)
    …Services, both AD-based Activation (ADBA) and Key Management Services (KMS), for Windows OS and Microsoft Office product offerings. + Working knowledge ... and professionalism. We have a great opportunity for a Principal Systems Administrator - active TS/SCI clearance in Springfield, VA. The position is required… more
    V2X (08/22/25)
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  • Systems Administrator - TS/SCI…

    General Dynamics Information Technology (Mclean, VA)
    …Mac Open Directory. + Demonstrated experience managing and deploying Mac OS 10+ and Windows based workstations. + Demonstrated understanding of databases, ... Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means connecting and… more
    General Dynamics Information Technology (09/12/25)
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