• Sr. System Administrator - VDI

    Leidos (Odenton, MD)
    **Description** The Defense group at Leidos has a career opening for a System Administrator on a DISA contract. This role is primarily on the customer site at Ft ... Meade, MD. Administrator will provide support for assigned systems supporting Joint...this job requisition will remain open for at least 3 days with an anticipated close date of no… more
    Leidos (01/16/26)
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  • Subcontract Administrator Senior

    Lockheed Martin (Arlington, TX)
    **Description:** You will be the Senior Subcontract Administrator for the THAAD Program team\. Our team drives the procurement of specialized materials, equipment, ... **What You Will Be Doing** As the Senior Subcontract Administrator , you will be the key liaison between Lockheed...within delegated authority\. * This position requires working on\-site 2\- 3 days per week **Why Join Us** You are… more
    Lockheed Martin (01/16/26)
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  • HBSS Administrator

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a skilled **Senior HBSS Administrator in Fort Belvoir, VA** to join the I3TS team supporting DTRA. The I3TS program provides ... Endpoint Security with experience in Trellix and Microsoft Defender. Administrator will also be responsible in applying Security Technical...this job requisition will remain open for at least 3 days with an anticipated close date of no… more
    Leidos (01/13/26)
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  • IT Systems Administrator

    Adecco US, Inc. (Sarasota, FL)
    **IT Systems Administrator ** We are seeking an experienced **IT Systems Administrator ** to maintain, upgrade, and manage our organization's software, hardware, ... acting as primary support when needed) **Education & Experience Requirements:** + **Minimum 3 years of experience in Systems Administration** + **Minimum 3 years… more
    Adecco US, Inc. (01/10/26)
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  • Senior Windows Systems Administrator

    Leidos (Arlington, VA)
    …Certified Practitioner (SSCP) ) Training (DISA-US1390 DCWF Windows Systems Administrator ). + Expert knowledge of Windows Active Directory infrastructure (GPOs, ... this job requisition will remain open for at least 3 days with an anticipated close date of no...with an anticipated close date of no earlier than 3 days after the original posting date as listed… more
    Leidos (01/07/26)
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  • Microsoft SQL Database Administrator

    Leidos (Suitland, MD)
    **Description** **Join Us as a Microsoft SQL Database Administrator ** Leidos is looking for a talented Microsoft SQL Database Administrator to join our team at ... this job requisition will remain open for at least 3 days with an anticipated close date of no...with an anticipated close date of no earlier than 3 days after the original posting date as listed… more
    Leidos (01/01/26)
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  • Senior Network Administrator

    Leidos (Piketon, OH)
    **Description** Leidos has an exciting and rewarding opportunity for a Senior Network Administrator to work at the DOE Portsmouth (Piketon, Ohio) site. The Senior ... Network Administrator provides advanced technical leadership in the design, implementation,...this job requisition will remain open for at least 3 days with an anticipated close date of no… more
    Leidos (01/01/26)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    **Description** The DTRA program at Leidos is seeking a **Senior Linux Administrator ** in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team to ... + App Servers: JBoss, Tomcat, Jetty, NGINX, HTTP + 2- 3 years of experience with web server management and...+ Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred) Come break things (in a good… more
    Leidos (12/30/25)
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  • Systems Network Administrator (SNA-0)

    Leidos (Laurel, MD)
    …**Leidos** has a new and exciting opportunity for a **Systems/Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... make a difference in National Security!** **Job Summary:** Systems/Network administrator will provide support for implementation, troubleshooting and maintenance of… more
    Leidos (12/20/25)
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  • SIGINT Systems Administrator (Low Band…

    CACI International (Hampton, VA)
    SIGINT Systems Administrator (Low Band Journeyman) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Employee Type: ... * * * CACI is seeking a SIGINT Systems Administrator to join the CACI team at Langley AFB,...related Technical Field. + Active TS/SCI Security Clearance. + ≥ 3 yrs of COMINT. + ≥ 3 yrs… more
    CACI International (12/15/25)
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