• 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 (06/25/25)
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  • Senior Systems Administrator ( Linux

    GovCIO (Denver, CO)
    …willing to work nights, have an active Security+ certification, and an active Top Secret clearance. **Responsibilities** In this role you will: Provide support ... **Overview** GovCIO is hiring for a Senior Systems Administrator ( Linux and Windows) to...Required:** US Citizenship is required to acquire an active Top Secret clearance Preferred Skills and Experience… more
    GovCIO (07/09/25)
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  • Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with Polygraph **Principal Linux System Administrator - Aurora, CO, ... GSEC, SSCP, CySA+, CND. + Experience Red Hat Enterprise Linux based systems + Experience with DT...and security hardening **Qualifications We Prefer:** + Deployment and administration of systems , storage, and networking in… more
    RTX Corporation (07/08/25)
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  • Sr Principal Systems Administrator

    Northrop Grumman (Aurora, CO)
    …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 ... 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 (06/12/25)
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  • Principal Systems Administrator (25-292)

    Northrop Grumman (Colorado Springs, CO)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... of the missile defense system. Operate, maintain, and manage Linux -based systems supporting a software development environment....+ Applicants must have a current, active in-scope DoD-issued ** Top Secret ** security clearance at the time… more
    Northrop Grumman (07/11/25)
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  • Systems Administrator

    TEKsystems (Aurora, CO)
    …used RAID-levels * Solid understanding of remediating security vulnerabilities; Experience hardening Linux systems in accordance with RMF and STIGs * Identity ... do not apply if you don't have a clearance.)** Top Skills' Details 1. 5+ years of experience with...1. 5+ years of experience with Red Hat Enterprise Linux (RHEL) server administration in an SCI… more
    TEKsystems (07/13/25)
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  • Full Stack Systems Engineer IT / TS

    Lockheed Martin (Littleton, CO)
    …of employment\) * Experience with Windows or Linux server operating systems * Proficiency automating system administration tasks using scripting tools and/or ... operating system and application security patches in both Windows and Linux Environments * Creating / editing Standard Operating Instructions \(SOI\) documentation… more
    Lockheed Martin (07/12/25)
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  • Senior Systems Administrator

    Leidos (Aurora, CO)
    …automation and process optimization. **What does Leidos need from me?** + Active Top Secret /SCI ( TS /SCI) with Polygraph security clearance required. Must ... a culture of operational excellence. + Responsible for installation, configuration, administration , support and maintenance of systems , including associated… more
    Leidos (06/30/25)
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  • Sr. Software Engineer-Automated Test Framework…

    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. You will actively participate in daily stand-ups, Sprint Planning, Program… more
    Leidos (05/08/25)
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  • Specialist, Cyber Infrastructure Systems

    L3Harris (Colorado Springs, CO)
    …changing technologies. Essential Functions: + 4-6 years of experience with Red Hat Linux Administration or Engineering, 2-4 years of experience with Windows ... interest of national security. Job Title: Specialist, Cyber Infrastructure Systems Engineer Job Code: 24729 Job Location: Colorado Springs,...minimum of 8 years of prior related experience. + Top Secret /SCI clearance is required. + DOD… more
    L3Harris (06/07/25)
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