• Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …execution. We support critical programs with unclassified, classified, and proprietary information system capabilities and create end-to-end solutions to solve ... citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with CI Poly - Current At...program in a classified environment as a **Principal Linux System Administrator ** . + Responsibilities include building,… more
    RTX Corporation (07/19/25)
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  • Senior System Administrator

    CACI International (Aurora, CO)
    Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph ... your work life. More About This Role: As the Systems Administrator on this contract, you will...secure operational environment **Qualifications:** + Must have an **active TS with ability to obtain a Polygraph** + Hardware… more
    CACI International (09/03/25)
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  • Systems Administrator

    Northrop Grumman (Aurora, CO)
    …making history. Northrop Grumman Space Systems (NGSP) seeks to fill a ** System Administrator ** in the Payload and Ground Systems Division Engineering ... consider in lieu of a degree.** + **Current active TS / SCI security clearance required at the time...and system components. + Adhere to strict Information Systems security guidelines in all cases… more
    Northrop Grumman (09/26/25)
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  • Network Administrator

    General Dynamics Information Technology (Peterson AFB, CO)
    …RQ207377 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret / SCI **Public Trust/Other Required:** None **Job Family:** IT ... one of GDIT's fastest long-standing growing programs! US Battlefield Information Collection and Exploitation System eXtended (US...years of experience. + Must possess and maintain a Top Secret / SCI Security Clearance. +… more
    General Dynamics Information Technology (09/19/25)
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  • Systems Administrator II

    DCCA (Aurora, CO)
    …at: www.dcca.com System Administrator II (Linux) Candidate must have an active TS / SCI w/ Poly For over 40 years, DCCA has provided a broad range of ... Systems Administrator II Location Aurora, CO...troubleshooting, and maintenance of Information Technology (IT) systems . Manages IT system infrastructure and any… more
    DCCA (08/22/25)
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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 ... are not limited to:** + Support implementation, troubleshooting, and maintenance of IT systems + Manage IT infrastructure and ensure system availability and… more
    ManTech (08/08/25)
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  • System Administrator

    DCCA (Denver, CO)
    …compensation and benefits package. Visit our website at: www.dcca.com System Administrator Candidates MUST have an active TS / SCI Clearance For ... System Administrator Location Denver, CO Job...(or similar scanning tools) + GitLab Administration + ServiceNow Application/ Systems Administration experience + OpenSearch Cluster experience Required Education… more
    DCCA (09/22/25)
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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 ... are not limited to:** + Support implementation, troubleshooting, and maintenance of IT systems + Manage IT infrastructure and ensure system availability and… more
    ManTech (08/08/25)
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  • Principal Network Administrator…

    Northrop Grumman (Boulder, CO)
    …+ Demonstrated leadership skills, or previous management of small teams, would be helpful + Active Top Secret or SCI access would be nice to have We offer ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description**...qualified applicant will become part of Northrop Grumman's Space Systems sector under the Chief Information &… more
    Northrop Grumman (09/25/25)
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  • Information Technology/Assurance Specialist…

    P 11 Security, Inc. (Colorado Springs, CO)
    …and Military Compartments efforts. The position will provide "day-to-day" support for Collateral, Sensitive Compartmented Information ( SCI ) and Special ... any and all vulnerabilities and implement countermeasures + Ensure information systems and network appliances are operated,...of the date of hire. Security Clearance: + Current Top Secret Clearance with SCI … more
    P 11 Security, Inc. (09/25/25)
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