• Sr. Principal Linux System Administrator

    RTX Corporation (Aurora, CO)
    …Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ ... in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, maintaining, and securing Information Technology… more
    RTX Corporation (07/19/25)
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  • Sr. Subcontracts Administrator - Remote

    GovCIO (Denver, CO)
    **Overview** GovCIO is seeking a Senior Subcontracts Administrator (Specialist/Lead) to join our team-oriented, customer-focused Subcontracts Team. This position ... degree in a related field with 8+ years of prior relevant experience or Masters with 6+ years of...a team of transformers--people who are passionate about transforming government IT. Every day, we make a positive impact… more
    GovCIO (09/03/25)
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  • Windows System Administrator (Onsite…

    RTX Corporation (Aurora, CO)
    …Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ ... team: **Role Overview** We are seeking a skilled System Administrator on Windows systems to join our IT team....+ Security + certification + Active and transferable US government issued security clearance is required prior … more
    RTX Corporation (07/30/25)
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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 Employee Type: ... work life. More About This Role: As the Systems Administrator on this contract, you will be on an...salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant… more
    CACI International (09/03/25)
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  • Senior Active Directory Administrator

    CACI International (Colorado Springs, CO)
    Senior Active Directory Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular ... End: 11/1/2025 **The Opportunity:** CACI is seeking a Senior Active Directory Administrator in support of the Enterprise Information Technology as a Service (EITaaS)… more
    CACI International (08/22/25)
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  • Senior Systems Administrator

    CACI International (Colorado Springs, CO)
    Senior Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage ... Posting End: 11/24/2025 **The Opportunity:** CACI is seeking a Senior Systems Administrator in support of the Enterprise Information Technology as a Service (EITaaS)… more
    CACI International (08/22/25)
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  • Sr. System Administrator

    RTX Corporation (Aurora, CO)
    …Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ ... and support IT infrastructures around the world. **Senior System Administrator ** , internally known as Senior Analyst, Information Workplace...**Must have a Current TS/SCI CI Poly transferable US government issued prior to start date with… more
    RTX Corporation (09/03/25)
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  • Senior Database Administrator - Mon/Tue…

    GovCIO (Denver, CO)
    **Overview** GovCIO is currently hiring for MULTIPLE **Senior Database Administrator (s)** to support our customer, USPS' Network and Compute Technology (NCT) group. ... and maintain US Postal Service Public Trust **Preferred Skills and Experience** + Prior United States Postal Service (USPS) experience or active USPS Public Trust +… more
    GovCIO (08/02/25)
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  • Compliance/Patching System Administrator…

    Lockheed Martin (Schriever AFB, CO)
    …Global Platforms and Infrastructure \(GPI\) team as a Patching and Compliance System Administrator offers a unique opportunity to be part of a dynamic and innovative ... critical infrastructure\. Please Note: * This position requires a government security clearance at the Top Secret level; you...Qualifications:** * An Active Final TOP SECRET clearance required prior to starting, with eligibility to obtain a TS/SCI… more
    Lockheed Martin (08/28/25)
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  • Sr Principal Systems Administrator…

    Northrop Grumman (Colorado Springs, CO)
    …Defense Systems has an exciting career opportunity for a Sr Principal Systems Administrator - Integration/CDS Engineer to join our team of skilled and diverse ... and supporting network infrastructure deployment are highly sought after + Prior C2BMC network experience is also a plus \#NGSpace \#COSpace \#NGFeaturedJobs… more
    Northrop Grumman (08/27/25)
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