• Principal Linux Systems…

    Northrop Grumman (Aurora, CO)
    … information system environments + Candidates must have a current DOD ** Top ** ** Secret / SCI ** levelsecurity clearance, to include a recent **Polygraph** ... Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic...The ideal candidate will have a Bachelor's degree in Information Technology, a Security+ CE, a Linux +… more
    Northrop Grumman (09/23/25)
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  • Principal Linux Systems…

    Leidos (Aurora, CO)
    …with LINUX , Windows and Virtualization + **Security Clearance** : Must have an active Top Secret / SCI with Polygraph cssrc conmd Come break things (in a ... **Description** **Leidos** has a new and exciting opportunity for a **Principal Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber &… more
    Leidos (08/11/25)
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  • Linux System Administrator

    Parsons Corporation (Colorado Springs, CO)
    …experience + Top Secret ( TS ) security clearance with eligibility for Secret Compartmented Information ( SCI ) + Willingness to submit to a ... Management (IdM) + Experience with configuration management **Security Clearance Requirement:** An active Top Secret SCI security clearance is required for… more
    Parsons Corporation (09/04/25)
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  • Senior Linux Systems Administrator…

    Leidos (Aurora, CO)
    … LINUX , Windows and Virtualization + **Security Clearance** : Must have an active Top Secret / SCI with Polygraph cssrc conmd If you're looking for comfort, ... **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber &… more
    Leidos (09/18/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    MANTECH seeks a motivated and customer-focused ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT ... + Atlassian tool suite (JIRA, Confluence) **Security Clearance Requirements** + Current/active TS / SCI with Polygraph, **Physical Requirements** + Must be able to… more
    ManTech (08/08/25)
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  • Linux System Administrator

    ManTech (Aurora, CO)
    ManTech is seeking a ** Linux ** **System Administrator ** to join our team in **Southlands, Colorado** . This position supports the ELINT Modernization effort and ... within integrated software development environments **Security Clearance Requirements** + Current TS / SCI with Polygraph **Physical Requirements** + Must be able… more
    ManTech (08/08/25)
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  • Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with CI Poly - Current At Raytheon, the foundation of ... Raytheon program in a classified environment as a **Principal Linux System Administrator ** . + Responsibilities include...+ Must have active and transferable US government issued TS / SCI with poly security clearance is required… more
    RTX Corporation (07/19/25)
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  • Linux Systems Administrator…

    Deloitte (Colorado Springs, CO)
    …the need for employer sponsorship, now or at any time in the future. + Active Top Secret with SCI eligibility security clearance required + Role requires ... routers, switches, firewalls, IDS, etc. + Administer, implement and maintain Linux Servers in support of cybersecurity operations. + Maintain and continuously… more
    Deloitte (09/19/25)
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  • Swdc MSS Linux Systems Administrator…

    Northrop Grumman (Colorado Springs, CO)
    …concepts * In-depth experience in Operations and Maintenance activities of IT infrastructure * Active Top Secret with SCI eligibility What We Can Offer You: ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees have… more
    Northrop Grumman (08/30/25)
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  • Cleared IT Systems Administrator Senior

    BAE Systems (Broomfield, CO)
    …REQUIRED** BAE Systems Space and Mission Systems is seeking an experienced Linux System Administrator that will support the implementation, troubleshooting and ... of Education, US Department of Education. + A current TS / SCI Security and CI polygraph is required....Education, Experience, & Skills** + Red Hat Certified System Administrator (RHCSA). + Linux Foundation Certified System… more
    BAE Systems (09/09/25)
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