• Principal Linux Systems

    Northrop Grumman (Aurora, CO)
    …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 classified government...system 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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  • Principal/Senior Principal Systems Engineer…

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 25% of the Time **Description** At Northrop Grumman, our ... + Track/log Real World Events **Basic Qualifications:** + DoD Top Secret clearance that is or has... Linux : Hands-on experience deploying, configuring, and troubleshooting Linux systems , preferably RedHat 6/7/8/9 + Experience… more
    Northrop Grumman (08/22/25)
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  • Systems Administrator Level 2

    Northrop Grumman (Aurora, CO)
    …with 6 years of IT experience is required + **Candidate must have active/current Top Secret /SCI clearance with adjudicated Full Scope Polygraph at time of ... application** + Must have server administration experience with Linux (RedHat Enterprise ...+ 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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  • Systems Administrator (Level 2 or 3)

    Northrop Grumman (Aurora, CO)
    …used RAID-levels + Solid understanding of remediating security vulnerabilities; Experience hardening Linux systems in accordance with RMF and STIGs + Identity ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...at the time of application.** + Must have server administration experience with Linux RHEL 7x -… more
    Northrop Grumman (11/06/25)
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  • Top Secret Systems

    Insight Global (Louisville, CO)
    Job Description An aerospace company in Louisville, CO, is looking for a Top Secret Systems Administrator (Level 3) to join their growing classified IT team. ... be supporting Vmware, Horizon View, Active Directory, and VDI. You must have an active Top Secret clearance with SCI eligibility and ability to obtain a CI Poly.… more
    Insight Global (11/10/25)
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  • 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...and US Air Force Space Command (AFSPC) missions. Clearance: Top Secret Security Clearance with SCI Eligibility… more
    Paragon Cyber Solutions (10/11/25)
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  • Network / IT Systems Engineer Sr

    Lockheed Martin (Littleton, CO)
    … for mission\-critical programs\. You will have a background in systems administration , scripting, networking, and cybersecurity\. This position administers ... Responsibilities include: * Configure, administer, and maintain Windows and Linux systems as a Privileged User, ensuring...working on IT projects * Expertise in Windows and Linux system administration with an emphasis on… more
    Lockheed Martin (10/29/25)
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  • Automated Test Framework Software Engineer…

    Leidos (Aurora, CO)
    …and configuration management tools. + Must have experience working in Windows and/or Linux operating systems and experience working in a virtualized environment ... tracking issues; managing VMs; and using CI/CD tools and basic system admin experience. The selected individual will actively participate in daily stand-ups, Sprint… more
    Leidos (09/27/25)
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  • Systems Administrator Staff, Level 5…

    Lockheed Martin (Boulder, CO)
    …team * Strong written and verbal communication skills * 6 \+ years of systems administration experience in a multi user, 24/7 environment * Demonstrated success ... 24/7 operations **Basic Qualifications:** * Proficient with Windows and Linux operating systems * Proficient with RHEL...must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should… more
    Lockheed Martin (11/07/25)
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  • TS /SCI - GCCS Systems Engineer

    Insight Global (Colorado Springs, CO)
    …Security, CySA+, GICSP, GSEC, CND, SSCP) -3+ years of experience in systems administration , Tactical Combat Operations, and GCCS -Knowledge of virtualization ... support the configuration and implementation of the GCCS-J software and systems , GCCS-J courseware development, providing specific GCCS-J Operator training to… more
    Insight Global (10/16/25)
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