• Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented ** Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... You will demonstrate knowledge and understanding of client and server operations and maintenance with Windows 10 and 11...+ Lead and supervise a team of system administrators (Windows/ Linux /VMWare) and IT support staff. + Design, implement, and… more
    ManTech (12/19/25)
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  • Senior Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Arlington, VA)
    **Overview** SENIOR SYSTEMS ADMINISTRATOR (NAUT): Bowhead seeks a Senior Systems Administrator to support our customer on the Nautical contract in the ... IL4/IL5 cloud environment administration and compliance Technical Skills: + Proficiency in Linux /Unix and Windows server administration in cloud environments +… more
    UIC Government Services and the Bowhead Family of Companies (01/06/26)
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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 ... activities. + Experience in Microsoft Windows computer operating systems, LINUX operating systems, CISCO Systems, computer security program administration, and… more
    SimIS Inc. (11/06/25)
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  • Senior Storage Administrator

    TekSynap (Radford, VA)
    …network communication. + Installation and configuration experience of backup SW with Windows Server 2019, Solaris 11, RedHat Enterprise Linux 7 and higher. + ... Manage, maintain, deploy, troubleshoot, and support enterprise storage systems and associated server environments. + Collaborate with OS and Storage teams to support… more
    TekSynap (10/25/25)
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  • 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 ... ability to obtain one within 180 days. + Experience with Windows and Linux operating systems. + Experience providing help-desk end-user support for common desktop… more
    ManTech (12/03/25)
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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 (01/07/26)
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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...Service; Documentation; System Installation and Maintenance; Windows 10/11; Windows Server ; Linux (RHEL, Debian); Proxmox VE; Backup… more
    General Dynamics Information Technology (12/18/25)
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  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …distributed teams across multiple geographic locations + Experience managing Windows and Linux server environments + Knowledge of network security, firewalls, ... 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… more
    SimIS Inc. (12/22/25)
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  • Sr. Storage Administrator

    CGI Technologies and Solutions, Inc. (Radford, VA)
    …in Radford, VA. **Your future duties and responsibilities:** This position is for a Senior Storage Administrator for a mixed and growing environment of various ... **Sr. Storage Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia,...Installation and configuration experience of backup SW with Windows Server 2019, Solaris 11, RedHat Enterprise Linux … more
    CGI Technologies and Solutions, Inc. (01/07/26)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …with current CI Polygraph required The Systems Engineering team is seeking a driven Senior Linux /UNIX Systems Administrator that is highly technical and ... mission focused. This ideal candidate is ready to operate as aTIER 3 level Linux /UNIX Administrator , experienced in managing large amounts of data and storage at… more
    Arena Technical Resources, LLC (11/29/25)
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