• Systems Administrator 2 (Bluemont,…

    William C Brown Inc (Springfield, VA)
    Systems Administrator 2 (Bluemont, VA) EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for ... by law. Description WCBinc is looking for a Sr. Systems Administrator to provide support for implementation,...both NetApp Data Ontap Cluster Mode and 7-mode operating system version 8.2 or later. Experience with Data Ontap… more
    William C Brown Inc (10/23/25)
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  • Mainframe Security Administrator

    Cayuse Holdings (Lansing, MI)
    …**Here's What You Need** + 8 Years of hands-on experience with TSS ( Top Secret Security). + 5 Years of hands-on experience with z/OS Administration. ... **Overview** **_JOB TITLE:_** Mainframe Security Administrator **_CAYUSE COMPANY:_** Cayuse Civil Services, LLC **_LOCATION_**...support as the subject matter expert for z/OS operating systems and system components; provide direct technical… more
    Cayuse Holdings (01/15/26)
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  • Network Administrator , Senior Analyst,…

    RTX Corporation (Tucson, AZ)
    …Experience with classified computing, STIG compliance, and network refreshes + Current DoD Top Secret level security clearance **What We Offer** Our values drive ... only US citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current **Network Administrator , Senior Analyst (P2)** **Senior Analyst,… more
    RTX Corporation (12/05/25)
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  • ServiceNow Portal Administrator , Senior

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    TS /SCI with Poly highly desired * ServiceNow Certification: ServiceNow Certified System Administrator (CSA) certification is often a requirement. * ... **ServiceNow Portal Administrator , Senior** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Arlington **Position ID:** J0925-2136… more
    CGI Technologies and Solutions, Inc. (01/01/26)
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  • Senior Systems Administrator

    SAIC (Fort Meade, MD)
    …can** **grow your career in a dynamic and supportive environment!** The Systems Administrator (SA) will provide support for implementation, troubleshooting, and ... + Configure and manage UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of… more
    SAIC (11/17/25)
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  • System Administrator

    ManTech (Fort Meade, MD)
    **ManTech** seeks an experienced and passionate, career and customer-oriented ** System Administrator ** to join our team located in the **Ft. Meade, MD** area. ... in computer operating systems **Clearance Requirement:** + Must have a current/active TS /SCI with Poly **Physical Requirements:** + Must be able to remain in a… more
    ManTech (11/03/25)
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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 ... the lifecycle of operating systems + Design interfaces to external systems and maintain thorough documentation on system configurations and processes… more
    ManTech (12/03/25)
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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 ... ensuring the continued health, performance, and compliance of complex network and system infrastructures. You will help drive key Operations and Maintenance (O&M)… more
    ManTech (12/13/25)
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  • Systems Administrator

    Leidos (Hickam AFB, HI)
    …strengthens the Air Force's intelligence enterprise across the Indo‑Pacific. As a Systems Administrator supporting PACAF A2Y at Joint Base Pearl Harbor-Hickam, ... support operators across the Pacific in a role where system uptime isn't just a metric-it's a strategic advantage....Master's with **6-10 years** + **8+ years of C4I systems administration experience** + **Active TS /SCI clearance**… more
    Leidos (01/16/26)
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  • Principal Linux Systems

    RTX Corporation (Aurora, CO)
    …a Raytheon program in a classified environment as a **Principal Linux System Administrator in Aurora, CO.** Responsibilities include building, maintaining, and ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the foundation of everything we… more
    RTX Corporation (12/29/25)
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