• Senior System Administrator

    CACI International (Annapolis Junction, MD)
    …operational oversight across a range of IT platforms including UNIX, Linux, and Windows systems . The ideal candidate brings extensive hands-on experience, deep ... join our team and help maintain, troubleshoot, and optimize a wide variety of IT systems . We are seeking an accomplished System Administrator - Level 4 to lead… more
    CACI International (08/01/25)
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  • System Administrator

    CACI International (College Park, MD)
    System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular ... Travel: Local * * * **The Opportunity:** CACI is seeking a System Administrator to join our team. **Responsibilities:** As a Mid-Level Linux Infrastructure Engineer… more
    CACI International (09/10/25)
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  • System Administrator IV

    Arena Technical Resources, LLC (Reston, VA)
    …Reston, VA, US Job ID: ATR 17632 Job Description Job Title: Systems Administrator IV Location: Reston, VA Clearance Required: TS /SCI We are seeking a ... Maryland, and Virginia area. The candidate will be responsible for ensuring systems are fully operating at high availability, rapidly troubleshooting and resolving … more
    Arena Technical Resources, LLC (09/30/25)
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  • Senior Cloud System Administrator

    ManTech (Hanover, MD)
    …and on-premise contexts **Minimum Qualifications:** + 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of ... for Windows Server 2022 environments, including Active Directory, and manage Windows 10/11 client systems . + Architect, deploy, and maintain robust cloud… more
    ManTech (09/10/25)
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  • Mid-Level Linux System Administrator

    Belay Technologies (Laurel, MD)
    …remains involved in the resolution process. + Configure and manage UNIX and Windows operating systems , install and load operating system software, troubleshoot, ... up in 2020 and a finalist in 2021! Belay Technologies is seeking a Linux System Administrator to join our intel team. + We are seeking a Mid-Level Linux System … more
    Belay Technologies (07/21/25)
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  • (Mid. or Senior) System Administrator

    Belay Technologies (Annapolis Junction, MD)
    …at least 8 yrs. of relevant experience + Must have experience as a systems administrator providing direct support to end users and technical staff (developer, ... finalist in 2021! Belay Technologies is seeking a System Administrator to join our team. The selected individual will...+ Must have experience or familiarity with the following systems : Windows /Linux operating systems , VMware,… more
    Belay Technologies (10/01/25)
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  • System Administrator

    Nightwing (Sterling, VA)
    …the intelligence community, defense, civil, and commercial markets. Job Title: System Administrator Location: Sterling, VA Clearance: TS /SCI Poly **This position ... is CONTINGENT upon contract award** The System Administrator (SysA) as part of the Platform Team delivers...customers in a timely manner. Required Skills: + Operating Systems : Extensive knowledge of Windows and Linux… more
    Nightwing (09/26/25)
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  • Network Administrator 3

    M. C. Dean (Fort Meade, MD)
    …and cybersecurity industries. **Position Summary:** MC Dean is seeking a highly competent TS /SCI with Polygraph cleared **Network Administrator 3** to assist on ... digital/analog communications technologies. + Working knowledge of the following systems : UNIX/LINUX, CISCO IOS, Windows Server, and...with 5+ years of experience + Must have a TS /SCI with Polygraph **Desired Certifications:** + CCNA, CCNP or… more
    M. C. Dean (09/23/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of ... - Perform large scale configuration management and deployment across Windows , MacOS, Linux/Unix, and other operating systems ...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    Nightwing (08/28/25)
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  • Software Administrator III

    DCCA (Annapolis Junction, MD)
    …a competitive compensation and benefits package. Visit our website at: www.dcca.com Software Administrator III Candidate must have an active TS /SCI w/Poly For ... Software Administrator III Location Annapolis Junction, MD Job Code...in the resolution process. Configures and manages UN1X and Windows operating systems and installs/loads operating system… more
    DCCA (08/18/25)
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