• Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …supporting a Raytheon program in a classified environment as a **Principal Linux System Administrator ** . + Responsibilities include building, maintaining, and ... citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the...SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using… more
    RTX Corporation (07/19/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    MANTECH seeks a motivated and customer-focused ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT ... issues at Tier 1 and Tier 2 support levels + Configure and manage UNIX/ Linux operating systems and install/load OS software + Optimize system operations and… more
    ManTech (08/08/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    ManTech is seeking a ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT Modernization effort and ... issues at Tier 1 and Tier 2 support levels + Configure and manage UNIX/ Linux operating systems and install/load OS software + Optimize system operations and… more
    ManTech (08/08/25)
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  • Systems Administrator

    ISYS Technologies (Schriever AFB, CO)
    Minimum Clearance Required Top Secret Responsibilities I2X Technologies is a reputable technology services company to the Federal Government. Whether the focus ... of our government customers. I2X Technologies is seeking a Systems Administrator to support ongoing activities for...position will be on-site and will require an active Top Secret clearance with SCI / SAP… more
    ISYS Technologies (09/30/25)
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  • SatOps Systems Administrator

    SAIC (Colorado Springs, CO)
    **Description** As a vital member of our team, the Satellite Systems Administrator is central to the configuration, maintenance, and issue resolution of ... cross-domain systems that are essential to our space and defense...and completing projects successfully. **Clearance:** + An active DoD Top Secret clearance with the ability to… more
    SAIC (08/22/25)
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  • GCCS Systems Administrator

    Paragon Cyber Solutions (Colorado Springs, CO)
    …immediate opening for those ready for an exciting and dynamic career as a Systems Administrator to join other smart, talented, and dedicated engineers that pride ... and US Air Force Space Command (AFSPC) missions. Clearance: Top Secret Security Clearance with SCI Eligibility...and/or at least five (5) years of Windows and Linux systems administration experience. + Strong knowledge… more
    Paragon Cyber Solutions (07/12/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …Come be a part of our mission. Northrop Grumman is seeking a **Sr Principal Systems Administrator ** to join our team at our facility in Aurora, Colorado. **Job ... with 12 years of IT experience is required + **Candidate must have active/current Top Secret /SCI clearance with adjudicated Full Scope Polygraph at time of… more
    Northrop Grumman (09/11/25)
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  • Guidance Navigation and Control/System…

    Lockheed Martin (Colorado Springs, CO)
    …* Red Hat Enterprise Linux \(RHEL\) * Ability to obtain a Top Secret /SCI clearance * Interim Secret Clearance **Security Clearance Statement:** ... Mission is Ours\. Lockheed Martin Space is seeking a Guidance Navigation and Control/System Administrator Intern\. In this role you will: * Work with all elements of… more
    Lockheed Martin (09/24/25)
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  • Systems Administrator , Mid

    BOOZ, ALLEN & HAMILTON, INC. (Aurora, CO)
    Systems Administrator , Mid The Opportunity : What if...12 hours a day outside of normal work hours + TS /SCI clearance with a polygraph + HS diploma or GED ... IC ) ? With so much relying on complex systems , a skilled systems administrator ...Experience working in a DevSecOps environment + Experience with Linux administration + Experience in or supporting the military… more
    BOOZ, ALLEN & HAMILTON, INC. (09/01/25)
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  • Senior System Administrator

    CACI International (Aurora, CO)
    …of activities to balance with your work life. More About This Role: As the Systems Administrator on this contract, you will be on an engineering team that ... Senior System Administrator Job Category: Information Technology Time Type: Full...virtual server environments + Hands-on working knowledge of RedHat linux systems + Responsible for pro-active … more
    CACI International (09/03/25)
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