• Principal Linux Systems

    Northrop Grumman (Aurora, CO)
    …We Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic team of technical ... be limited to the following: + Perform as primary Linux Systems Administrator for a... environments + Candidates must have a current DOD ** Top ** ** Secret /SCI** levelsecurity clearance, to include a… more
    Northrop Grumman (11/11/25)
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  • Senior Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...Virtualization + **Security Clearance** : Must have an active Top Secret /SCI with Polygraph cssrc conmd If… more
    Leidos (12/19/25)
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  • Sr Principal Linux Systems

    Northrop Grumman (Boulder, CO)
    …will include but not be limited to the following: + Perform as primary Linux Systems Administrator for a classified government contract. + Communicate ... verbal format. + Maintain smooth operation of multi-user computer systems , including coordination with network, software, and system...with Certification & Accreditation process and STIGs + Active Top Secret is preferred We offer flexible… more
    Northrop Grumman (12/12/25)
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  • Principal Linux Systems

    RTX Corporation (Aurora, CO)
    …be supporting a Raytheon program in a classified environment as a **Principal Linux System Administrator in Aurora, CO.** Responsibilities include building, ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with CI Poly - Current At Raytheon, the foundation of everything we… more
    RTX Corporation (12/29/25)
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  • Systems Administrator II

    DCCA (Aurora, CO)
    …and benefits package. Visit our website at: www.dcca.com System Administrator II ( Linux ) Candidate must have an active TS /SCI w/ Poly For over 40 years, ... Systems Administrator II Location Aurora, CO...Configures and manages UNIX and Linux operating systems and installs/loads operating system software, troubleshoots,… more
    DCCA (11/21/25)
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  • System Administrator

    KBR (Colorado Springs, CO)
    …DISA STIGs and SRGs + Excellent oral and written communication skills Desired: + Linux System Administrator + DevSecOps + Risk Management Framework ... Title: System Administrator Belong. Connect. Grow. with...+ Security Clearance: Must have an active US government Top Secret /SCI security clearance, which is something… more
    KBR (11/20/25)
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  • Help Desk System Administrator

    Lockheed Martin (Schriever AFB, CO)
    …duties include configuring and managing Linux and Windows Operating systems to include implementing operating system enhancements to improve reliability ... This position requires a government security clearance at the Top Secret level; you must be a... system administration in both Windows Server and Linux operating systems \. * Experience with troubleshooting… more
    Lockheed Martin (12/11/25)
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  • Systems Administrator Level 2

    Northrop Grumman (Aurora, CO)
    …responsibilities will include, but not be limited to, the following:** + Perform as a Linux and Windows System Administrator on large government contracts. + ... part of our mission. Northrop Grumman is seeking a ** Systems Administrator ** **Level 2** to join our...IT experience is required + **Candidate must have active/current Top Secret /SCI clearance with adjudicated Full Scope… more
    Northrop Grumman (10/22/25)
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  • Systems Administrator (Level 2 or 3)

    Northrop Grumman (Aurora, CO)
    …(BU). This position is located in **Aurora, CO.** **Job Duties:** + Perform as a Linux and Windows System Administrator and able to build these environments ... Space Systems (NGSP) seeks to fill a ** Systems Administrator (Level 2 or 3)** supporting...+ Solid understanding of remediating security vulnerabilities; Experience hardening Linux systems in accordance with RMF and… more
    Northrop Grumman (11/06/25)
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  • System Administrator (SA) SME

    KBR (Colorado Springs, CO)
    System Administrator to join our team in Colorado Springs, CO. Active TS /SCI clearance require The System Administrator (SA) SME provides virtual ... Title: System Administrator (SA) SME KBR's National...Clearance: + US Citizen. + Active Top Secret security clearance with ability to obtain TS more
    KBR (12/12/25)
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