• Senior System Administrator

    SimIS Inc. (Dahlgren, VA)
    …team), and importance of others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to ... experience as follows: + Experience in implementing and maintaining complex computer system network administration activities. + Experience in Microsoft Windows… more
    SimIS Inc. (08/07/25)
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  • System Administrator - Senior

    Nightwing (Sterling, VA)
    …availability of IT systems + Coordinate and manage IT projects, including system upgrades, and network improvements ensuring projects are delivered on time + ... community, defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA… more
    Nightwing (06/27/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Quantico, VA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a ** Senior Systems Administrator ** with GDIT. A career in ... potential, or suspected criminal, terrorism, sabotage, espionage and subversive activities. **HOW OUR SENIOR SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT:** +… more
    General Dynamics Information Technology (08/09/25)
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  • Senior Systems Administrator

    First Division Consulting (Dahlgren, VA)
    …contingent on contract award** Position Overview: First Division Consulting is seeking a Senior Unix/Linux Systems Administrator to support a Department of ... and software infrastructure. The ideal candidate will have expertise in Unix/Linux system administration, backup and recovery, network security protocols, and… more
    First Division Consulting (06/19/25)
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  • Senior Linux/Unix Systems

    SMX (Dahlgren, VA)
    …in support of Naval Surface Warfare Center Dahlgren Division (NSWCDD) in Dahlgren, VA. The Senior Systems Administrator will work as part of our team ... Senior Linux/Unix Systems Administrator ...and maintain Top Secret clearance + Networking protocols + Network security tools such as firewalls + Vulnerability management… more
    SMX (08/08/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a ** Senior System Administrator ** to join a dynamic team based in **Tysons Corner, VA** . ... exciting opportunity allows you to apply your expertise in system administration and software programming while supporting a small...team responsible for managing a wide range of mission-critical systems . **Key Details** : + Work hours fall within… more
    Leidos (07/29/25)
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  • DAI Systems Administrator

    CGI Technologies and Solutions, Inc. (Fort Belvoir, VA)
    **DAI Systems Administrator - Senior **...Full Time **Position Description:** We are seeking an IT Systems and Network Administrator to ... ensure the stable operation of our in-house computer software systems and network connections. Your role will...of our in-house computer software systems and network connections. Your role will encompass planning, developing, installing,… more
    CGI Technologies and Solutions, Inc. (05/22/25)
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  • Senior Systems Administrator

    GovCIO (Richmond, VA)
    **Overview** GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration of the core system ... $105,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6239/ senior - systems - administrator --%28linux-windows%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID**… more
    GovCIO (07/09/25)
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  • Linux System Administrator

    GovCIO (Richmond, VA)
    **Overview** GovCIO is hiring a Windows and Linux System Administrator ( Senior ) to support Veterans Affairs operational needs. The role requires AWS, ... $150,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6366/linux- system - administrator %2c- senior -%28remote%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID**… more
    GovCIO (07/25/25)
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  • Senior Linux System

    GovCIO (Richmond, VA)
    …referral to this job (https://careers-govcio.icims.com/jobs/6348/ senior -linux- system - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position… more
    GovCIO (08/08/25)
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