• Systems Administrator - Tier 3 Support

    GovCIO (Fairfax, VA)
    **Overview** GovCIO is currently hiring for a System Administrator - Tier 3 Support with an active Secret clearance in support of our DEA Bluestone program. ... Build and deploy servers. Troubleshoot issues with the servers, network, or cybersecurity risks + Configure, deploy, and maintain Windows Server Update Services… more
    GovCIO (09/02/25)
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  • Hybrid Network Security Administrator

    Insight Global (Nashville, TN)
    …and react to events to protect ACP data. In addition to day-to-day cybersecurity monitoring and projects, this role performs Infrastructure actions as required ... responsible for designing, implementing, and managing the organization's network infrastructure and security protocols. This role involves monitoring network… more
    Insight Global (10/28/25)
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  • Principal Windows Systems Administrator

    RTX Corporation (El Segundo, CA)
    …meaningful problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many teams ... define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems. **What You Will Do** : + Provide IT systems administration… more
    RTX Corporation (11/18/25)
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  • Network Administrator II

    Intelligent Waves (Ogden, UT)
    **Overview** Intelligent Waves has an immediate need for a **Network Administrator ** to support our mission-critical work for our government customers at Hill AFB, ... Your responsibilities will include administering, monitoring, and optimizing network infrastructure ; performing upgrades and enhancements; and troubleshooting complex issues… more
    Intelligent Waves (11/14/25)
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  • Network/System Administrator (Net/Sys…

    General Dynamics Information Technology (Colorado Springs, CO)
    …Polygraph **Public Trust/Other Required:** None **Job Family:** IT Infrastructure and Operations **Skills:** Computer Networking,Microsoft Windows Server,Network ... related experience **US Citizenship Required:** Yes **Job Description:** **Network/System Administrator I** **COLORADO SPRINGS, COLORADO** **The primary function will… more
    General Dynamics Information Technology (11/04/25)
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  • Application Administrator Tech Lead

    RTX Corporation (Boston, MA)
    …in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity . The company, formed in 2020 through the combination of Raytheon ... and Technology Application Services (ETAS) has an opening for a Application Administrator Tech Lead who is familiar with supporting enterprise deployments of… more
    RTX Corporation (10/22/25)
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  • Systems Administrator

    GovCIO (Vandenberg AFB, CA)
    …systems and multimillion-dollar assets. As a contractor, you will maintain IT infrastructure for secure data handling, cybersecurity compliance, and deployable ... $120,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6885/systems- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-CA-VSFB_ **ID** _2025-6885_ **Category** _IT … more
    GovCIO (10/08/25)
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  • Intermediate Classified Systems…

    The MITRE Corporation (San Diego, CA)
    …Enterprise Infrastructure is looking for a Junior Systems/ Network Administrator . A successful candidate will be delivering timely, effective, and sustainable ... the government create lasting impact in fields as diverse as cybersecurity , healthcare, aviation, defense, and enterprise transformation. We're making a difference… more
    The MITRE Corporation (11/22/25)
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  • Principal Systems Administrator

    ManTech (Chantilly, VA)
    MANTECH is seeking a talented Principal Systems Administrator to join our sustainment team in Chantilly, VA. This role supports a mission-critical enterprise ... vulnerability scans, apply security patches, and ensure adherence to established cybersecurity standards. + Contribute to DevOps and Agile processes by supporting… more
    ManTech (11/21/25)
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  • Sr. Linux Systems Administrator

    RTX Corporation (Richardson, TX)
    …information system capabilities and create end-to-end solutions to solve complex digital infrastructure problems. To achieve the mission of our customers, we strive ... program in a classified environment as a **Sr. Linux System Administrator ** . Responsibilities include building, maintaining, and securing Information Technology… more
    RTX Corporation (11/19/25)
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