• Senior Linux System

    GovCIO (Denver, CO)
    …Submit a referral to this job (https://careers-govcio.icims.com/jobs/6348/ senior - linux - system - administrator ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with... Linux System Administration, Configuration, and System Security + Advanced systems troubleshooting skills… more
    GovCIO (08/08/25)
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  • Sr . Linux System

    RTX Corporation (Aurora, CO)
    …secure the integrity of our systems and support IT infrastructures around the world. ** Senior Linux System Administrator ** , internally known as ... Services collaborate and support exciting, critical programs with classified information system capabilities. Success in this role means you can develop, implement,… more
    RTX Corporation (10/28/25)
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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 ... Chief Information and Digital Office (CIDO) organization is seeking a highly experienced ** Senior Linux Server Admin** to join its dynamic team of technical… more
    Northrop Grumman (10/09/25)
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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) ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...Ten or more (10) years of experience as a System Administrator (SA) supporting programs and contracts… more
    Leidos (10/09/25)
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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) ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...Ten or more (10) years of experience as a System Administrator (SA) supporting programs and contracts… more
    Leidos (09/18/25)
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  • Sr Principal Systems

    Northrop Grumman (Aurora, CO)
    …to the warfighter. Come be a part of our mission. Northrop Grumman is seeking a ** Sr Principal Systems Administrator ** to join our team at our facility in ... be limited to, the following:** + Perform as a Linux and Windows System Administrator ...+ Solid understanding of remediating security vulnerabilities; Experience hardening Linux systems in accordance with RMF and… more
    Northrop Grumman (10/22/25)
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  • Telecommunications Network System

    Tri-State Generation and Transmission Association, Inc. (Westminster, CO)
    Administrator II, job grade T4; Telecommunications Network System Administrator III, job grade T5; or Senior Telecommunications Network System ... Term Disability (STD), Employee Assistant Program (EAP) and Paid Leave Benefits. ** Senior Telecommunications Network System Administrator ** Hiring Wage:… more
    Tri-State Generation and Transmission Association, Inc. (09/25/25)
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  • Principal Field Service Engineer/ Sr

    Northrop Grumman (Aurora, CO)
    …MCSA Windows Server 2016Linux: Linux +, LPIC-1, or Red Hat Certified Systems Administrator , Cisco Certified Network Associate (CCNA) Primary Level Salary ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (10/07/25)
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  • Sr Principal Sys Admin - Identity & Access…

    Northrop Grumman (Colorado Springs, CO)
    Systems -Launch and Missile Defense Systems presents an excellent opportunity for a Sr Principal Systems Administrator - Identity & Access Mgmt ... Systems Administrator (25-441) to join our team of skilled and...program is a vital part of the Missile Defense System . It provides a crucial operational platform that allows… more
    Northrop Grumman (09/13/25)
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  • IT Senior Systems

    Hensel Phelps (Greeley, CO)
    …planning and extends throughout the life of the property. **Position Description:** The Senior Systems Engineer role is to ensure the efficient operation and ... MCSE, VMware VCP-DCV (advanced), Cisco CCNP and ITIL are required. + Strong system administration ( Linux /Unix and Windows) at the command-line level. + Hands-on… more
    Hensel Phelps (10/22/25)
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