• Windows System Administrator

    GCyber (Arlington, VA)
    GCyber is seeking a Windows System Administrator , to support a high profile DISA customer in their mission to improve collaboration and information sharing ... between defense and intelligence organizations. The Windows System Administrator will provide operational maintenance, support, and upgrades to hardware,… more
    GCyber (09/27/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of ... acceptable performance and user accessibility, establish back-ups, and monitor systems security . - Troubleshoot and resolve complex...5+ years of directly relevant experience as a Linux System Administrator . - 2+ years MacOS and… more
    Nightwing (08/28/25)
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  • System Administrator

    Leidos (Arlington, VA)
    …This role includes a combination of duties to protect information , and maintain security controls, for an entire system , site, or program to reduce risk. + ... role they play in secure operations. **Preferred Qualifications** + RedHat Certified System Administrator (RHCSA) certification. + Cisco Certified Network … more
    Leidos (09/12/25)
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  • Sr. Systems Administrator

    Chenega Corporation (Fort Belvoir, VA)
    … Ft. Belvoir, VA Join our Talent Network Sr. Systems Administrator Ft. Belvoir, VA C-CHR-24-050 TheSenior System Administratorwill provide primary and ... backup server system administration and information assurance support. Duties and Responsibilities: + +...and patches are installed and configured, including maintaining Defense Information Systems Agency (DISA) Security … more
    Chenega Corporation (09/01/25)
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  • VMware ESXI Administrator

    Trace Systems Inc (Portsmouth, VA)
    …Title: VMware ESXI Administrator Location: Portsmouth, VA Job Responsibilities Trace Systems is seeking a VMware ESXI Administrator to support the Norfolk ... correct and improve conditions and optimize efficiency of the system . + Ensure the application of Security ...degree in an IT-related discipline or Level II Certification ( Security + or better) Trace Systems Trace … more
    Trace Systems Inc (08/29/25)
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  • Computer System Administrator

    Northrop Grumman (Dulles, VA)
    …with vendors, and evaluate vendor products, services, and suggestions. + Adhere to strict Information Systems security guidelines in all cases. + Maintain ... be limited to the following: + Perform as primary Systems or Network Administrator for a classified...classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).… more
    Northrop Grumman (08/13/25)
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  • Cyber Security Administrator II

    Virtual Service Operations (Arlington, VA)
    Cyber Security Administrator II * Arlington, VA (http://maps.google.com/maps?q=Arlington+VA+USA) Description Are you looking to take the next steps in your ... career as a Cyber Security Administrator II? Let's chat and see...individual with an active TS/SCI clearance to perform hands-on system administration, backup, recovery, and troubleshooting tasks, ensuring hardware-software… more
    Virtual Service Operations (09/10/25)
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  • Linux Systems Administrator

    CACI International (Hampton, VA)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular ... Active TS/SCI security clearance. + Bachelor's degree in computer science, information technology, or a related field (or equivalent work experience) + Minimum 5… more
    CACI International (09/26/25)
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  • System Administrator

    Parsons Corporation (Centreville, VA)
    …Operating Procedures (SOPs) for system administration tasks. + Work closely with the Information Systems Security Officer (ISSO) to address security ... Information Technology, or a related field. + CompTIA Security + Minimum + Proven experience as a System... Security + Minimum + Proven experience as a System Administrator in a classified environment, preferably… more
    Parsons Corporation (09/04/25)
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  • Senior Linux Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become part of ... impactful solutions in support of critical government missions. As a **Senior Linux Systems Administrator ,** you will help maintain and enhance the Sponsor's… more
    ManTech (08/30/25)
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