• GCCS Systems Administrator

    Paragon Cyber Solutions (Colorado Springs, CO)
    …with GCCS-J version 6.0 and/or at least five (5) years of Windows and Linux systems administration experience. + Strong knowledge of Server Operating ... ready for an exciting and dynamic career as a Systems Administrator to join other smart, talented, and dedicated...with Java application servers (Tomcat, JBoss). + Familiarity with Linux /UNIX applications and services (NFS, SSH, NTP, LDAP, HTTP,… more
    Paragon Cyber Solutions (07/12/25)
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  • Systems Engineer - IT

    Lockheed Martin (Littleton, CO)
    …Linux system administration , including installing, troubleshooting and hardening Linux and Windows operating systems \(both bare\-metal and virtual ... working with a 150\+ C2\-Ground user base operating, maintaining and managing Windows/ Linux based systems supporting a software development environment\. This… more
    Lockheed Martin (09/24/25)
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  • Systems Administrator with Secret Clearance

    TestPros (Colorado Springs, CO)
    …compliance, and patching per cybersecurity requirements. Key Responsibilities: + Administer Windows/ Linux systems and services + Perform regular patching, ... Support system accreditation and audit readiness Qualifications: + 3+ years in system administration (Windows or Linux ) + Familiarity with DoD IT environments… more
    TestPros (08/02/25)
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  • Systems Security Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and policy set forth by the DoD + Experience with both Windows or Linux operating systems + DoD 8140 Certification (Ex: CompTIA Security+, CompTIA CySA+, ... implementing and maintaining compliance controls. + Experience with Red Hat Enterprise Linux and Windows Server virtualized administration and deployment. This… more
    Sierra Nevada Company, LLC (09/10/25)
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  • Senior System Administrator

    CACI International (Aurora, CO)
    …this contract, you will be on an engineering team that provides IT Systems Administration support to global real-time operational activities. Critical thinking ... -based virtual server environments + Hands-on working knowledge of RedHat linux systems + Responsible for pro-active systems monitoring and evaluation… more
    CACI International (09/03/25)
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  • System Admin /Engr II

    Amazon (Denver, CO)
    …year of experience in the following skill(s): (1) working with UNIX or Linux operating systems ; (2) utilizing programming and scripting languages including Java, ... year of experience in the following skill(s): (1) working with UNIX or Linux operating systems ; (2) utilizing programming and scripting languages including Java,… more
    Amazon (08/23/25)
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  • Systems Administrator III

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …experience may be considered in lieu of required education + Prior experience with systems administration in Windows or Linux environments + Excellent ... set and execute to a schedule ) + Experience with both Windows and Linux operating systems + Experience with any MCAD or ECAD tools and PLM or PDM, demonstrated… more
    Sierra Nevada Company, LLC (08/08/25)
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  • Systems Administration Design…

    CACI International (Colorado Springs, CO)
    Systems Administration Design Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: ... End: 9/30/2025 **The Opportunity:** CACI is looking for a ** Systems Administration Design Engineer** to perform System...and later, Microsoft Server 2012 and later, NetApp Storage Systems , Linux + Working knowledge of Microsoft… more
    CACI International (08/20/25)
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  • Senior Telecommunications Network System…

    Tri-State Generation and Transmission Association, Inc. (Westminster, CO)
    …protection circuits and utility-grade networking + Advanced studies in IP networking, Linux systems , and database management **SUGGESTED CERTIFICATIONS** + Cisco ... for the performance of preventive and corrective maintenance, servicing of network systems , database administration , and coordination with field and engineering… more
    Tri-State Generation and Transmission Association, Inc. (09/25/25)
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  • Lead Information Security Engineer

    Lumen (Denver, CO)
    …& computing system administration , virtualization, configuration, and support experience of Linux systems . + Two years of network design, support, and ... patching, hardening, user access permissions, and routine maintenance of Security infrastructure systems ( Linux & Windows) + Develop and support tools and… more
    Lumen (09/30/25)
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