• Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... equivalent) or ability to obtain one within 180 days. + Experience with Windows and Linux operating systems. + Experience providing help-desk end-user support for… more
    ManTech (12/03/25)
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  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …and importance of others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to the Warfare ... computer system network administration activities. + Experience in Microsoft Windows computer operating systems, LINUX operating systems, CISCO Systems, computer… more
    SimIS Inc. (11/06/25)
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  • Systems Administrator

    General Dynamics Information Technology (Sterling, VA)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** SYSTEMS ADMINISTRATOR SENIOR Advance how our customers operate while you ... advance your career. Join GDIT as a Systems Administrator Senior and build an impactful career...You will provide hands-on administration and operational support for Windows and Linux environments across both enterprise and fielded… more
    General Dynamics Information Technology (12/18/25)
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  • Senior Database Administrator

    Highmark Health (Richmond, VA)
    …Citizen (due to contractual/access requirements) We are seeking a Database Administrator with experience in PostgreSQL databases within Google Cloud Platform (GCP), ... related to the DBMS technology and computing platform such as Z/OS, UNIX, Linux, and Windows + Take a lead role in conducting root cause analysis to identify and… more
    Highmark Health (10/28/25)
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  • Senior ArcGIS Administrator

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a ** Senior ** **ArcGIS Administrato** **r** **in Fort Belvoir, VA** to support the DTRA Program. As a member of our high-performing ... Administration, Relational Databases (Oracle and/or PostgreSQL, Scripting (Python, PowerShell), Windows Server Administration, Incident/Ticketing System (ServiceNow, Jira). Selected candidate… more
    Leidos (12/30/25)
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  • Senior Storage Administrator

    TekSynap (Radford, VA)
    …disaster recovery, and troubleshooting. + Administer storage solutions across MS- Windows , Solaris, and RHEL/OEL Linux environments. + Manage storage networks ... refreshes at developer request. + Three (3) working with MS- Windows , Solaris, and RHEL/OEL Linux. + Three or more...science or equivalent experience. **Overview** We are seeking a Senior Storage Administratorto join our team supporting an ITES… more
    TekSynap (10/25/25)
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  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a US Navy Training ... with distributed teams across multiple geographic locations + Experience managing Windows and Linux server environments + Knowledge of network security, firewalls,… more
    SimIS Inc. (12/22/25)
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  • System Administrator

    Assertive Professionals (Chantilly, VA)
    System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business ... with Polygraph Timeline Pipeline Description Assertive Professionalsis seeking aSystem Administrator with Polygraph supporting ourNational Security Customer in Chantilly,… more
    Assertive Professionals (10/09/25)
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  • SharePoint Administrator Expert (SME)…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Certification Security+ or equivalent + Required Computing Environment Certification: MCSA Windows Server 2019, Azure Administrator Fundamentals, or equivalent + ... related experience **US Citizenship Required:** Yes **Job Description:** **SharePoint Administrator Expert (SME) - TS/SCI required** Make meaningful contributions… more
    General Dynamics Information Technology (10/29/25)
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  • Systems Administrator

    Amentum (Warrenton, VA)
    …in IT or related STEM field * Experience with ServiceNow * Microsoft Certified: Windows Server Hybrid Administrator Associate * CompTIA Network+ or Cisco CCNA ... so, look no further. Amentum is seeking a **Systems Administrator ** to join our team of passionate individuals in...and data, global communications network that facilitates collaboration among senior leaders and key staff. The Lone Wolf program… more
    Amentum (12/10/25)
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