• Systems Administrator

    Guidehouse (Springfield, VA)
    …clearance with a COUNTERINTELLIGENCE (CI) polygraph + Bachelor's Degree + Microsoft Systems Administrator Certification + Microsoft Active Directory, DNS, and ... Top Secret SCI (TS/SCI) **What You Will Do** **:** The System Administrator will provide technical support, systems administration, application administration,… more
    Guidehouse (08/08/25)
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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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  • DSS Systems Administrator

    General Dynamics Information Technology (Arlington, VA)
    …experience **US Citizenship Required:** Yes **Job Description:** **Mission:** A DSS Systems Administrator is responsible for providing Desktop Support Services ... CompTIA - Security+ - CompTIA - CompTIA, CompTIA - Network + - CompTIA - CompTIA, CompTIA - A+ -... systems administrative, troubleshooting, and operational duties on computer systems in response to user ticket… more
    General Dynamics Information Technology (09/26/25)
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  • Windows Systems Administrator

    Leidos (Arlington, VA)
    **Description** We are currently seeking a Windows Systems Administrator to join the Compartmented Enterprise Services Office (CESO) effort. This program is ... and DISA's support to mission partners + TS/SCI w/CI Poly Preferred + Integration of Network Management (NM) and Element Management (EM) systems with network … more
    Leidos (07/18/25)
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  • Systems Administrator

    ManTech (Norfolk, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Systems Administrator ** to join our team onsite in **Norfolk, Virginia.** This is an **onsite** ... + Diagnose and resolve complex technical issues related to system configurations and network connectivity for Range POR systems + Ensure compliance with security… more
    ManTech (08/29/25)
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  • Unix Systems Administrator

    SAIC (Ashburn, VA)
    …verbal) and time management skills. + Understanding Networking technologies/tools and do network troubleshooting. + Experience in hardening systems and doing ... Experience with Ansible. + Experience with OpenShift or Rancher. + Experience with GPU systems . + Master's degree (or higher) in computer science or related… more
    SAIC (09/12/25)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (Norfolk, VA)
    …Framework. + Experience automating deployments and configuration management. + Experience as a network administrator or systems engineer. + Experience in ... to develop innovative solutions to enable secure and reliable operations of enterprise computer systems . Develop new concepts and processes and analyze root… more
    ENS Solutions (09/27/25)
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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 ... COTS/GOTS hardware and software. **Minimum Qualifications:** + Education: Bachelor's degree in Computer Science, Systems Engineering, or a related IT discipline.… more
    ManTech (08/20/25)
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  • System Administrator

    Gromelski & Associates, Inc. (Manassas, VA)
    …of multi-user computer systems , including coordination with network administrators. **_System Administrator Required Skills:_** + Troubleshoot issues and ... and configure servers and workstations. + Experience troubleshooting and supporting computer and network equipment. + Setting up administrator and service… more
    Gromelski & Associates, Inc. (08/23/25)
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  • System Administrator I

    Gama-1 Technologies (Norfolk, VA)
    …area network (LAN), wide area network (WAN), data communications network , operating systems , and physical and virtual servers. Perform system monitoring ... and verify the integrity and availability of hardware, network , and server resources and systems . Review... computer networks and related computing environments, including computer hardware, systems software, applications software, and… more
    Gama-1 Technologies (09/18/25)
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