• System Administrator

    Parsons Corporation (Huntsville, AL)
    …providing hardware/software configuration, deployment, maintenance and management with a focus on Linux systems . + The candidate must have experience of managing ... and redefine what's possible. **Job Description:** The Parsons System Administrator (SA) will design, build, and maintain cost-effective information...the candidate be able to acquire and maintain a Top Secret / SCI Security. Minimum Clearance… more
    Parsons Corporation (09/17/25)
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  • Network/ Systems Administrator

    Argonne National Laboratory (Lemont, IL)
    …granted by the US Department of Energy (DOE). It's functionally equivalent to a ** Top Secret clearance** , allowing access to information classified up to that ... Argonne has an opportunity to serve as the System Administrator of the classified National Security Systems ...Veeam, or similar enterprise backup solutions. + Familiarity with Linux Server Operating Systems such as RHEL,… more
    Argonne National Laboratory (11/22/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics ... make a difference in National** **Security!** As a Senior Systems Administrator you will play a vital...Administration and SSP/Security support for the program in both Linux and Windows environments. + Implement, troubleshoot, and maintain… more
    Leidos (11/15/25)
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  • ServiceNow Systems Administrator

    SAIC (Annapolis Junction, MD)
    …be substituted for the degree + Minimum of 9 years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is ... **Description** SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program!...in the resolution process + Configure and manage UNIX, Linux and Windows operating systems and installs/loads… more
    SAIC (11/06/25)
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  • System Administrator

    Parsons Corporation (Centreville, VA)
    …and support accreditation efforts. **What Required Skills You'll Bring:** + **Active Top Secret /SCI with Full Scope Polygraph** + Bachelor's degree in ... or DoD. + Strong proficiency in managing Windows and Linux operating systems . + Extensive experience with...+ Microsoft Azure Certifications **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is… more
    Parsons Corporation (12/04/25)
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  • System Administrator

    CACI International (San Antonio, TX)
    …join our team and help maintain, troubleshoot, and optimize a wide variety of IT systems . We are seeking a qualified System Administrator to provide support for ... System Administrator Job Category: Information Technology Time Type: Full...and in-depth analysis. + Configuration and management of UNIX, Linux , and Windows operating systems . + Installation… more
    CACI International (11/25/25)
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  • Senior Unix System Administrator

    SMX (Patuxent River, MD)
    …Data Center (PRDC). This individual will work alongside a team of UNIX/ Linux Systems Administrators responsible for maintaining the integrity, availability, and ... across Department of Defense (DoD) networks. The Senior UNIX Administrator will ensure systems are properly patched...Must be able to obtain and maintain a DoD Top Secret clearance; Interim Secret more
    SMX (12/04/25)
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  • TSSCI Systems Administrator (Level…

    Insight Global (Louisville, CO)
    Job Description An aerospace company in Louisville, CO, is looking for a Top Secret Systems Administrator (Level 2) to join their growing classified IT ... responsible for provisioning, installation and configuration, and maintenance of systems hardware and software. Their environment is a mix...software. Their environment is a mix of Windows and Linux , and you will also be supporting Vmware, Horizon… more
    Insight Global (11/22/25)
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  • System Administrator 2

    DCCA (Fort Meade, MD)
    …to excellence. Key Tasks: DCCA is looking for TS /SCI w/Polygraph cleared Systems Administrators with Linux and Windows experience! We have multiple positions ... and benefits package. Visit our website at: www.dcca.com System Administrator 2 Candidate must have an active TS...involved in the resolution process. + Configure and manage Linux , UNIX and Windows operating systems and… more
    DCCA (11/21/25)
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  • Systems Administrator

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a highly motivated Systems Administrator to join our team of professionals providing technical and program services to the US ... land, at sea, in air, and in space. The Systems Administrator will be part of a...ESXi blade servers, HP storage, Cisco switches, Windows and Linux servers, and high-powered GPU workstations. The primary functions… more
    SAIC (11/15/25)
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