• Senior Software Infrastructure Engineer

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon, the foundation of everything ... **Qualifications You Must Have** + Active and transferable US government issued ** TS / SCI with Polygraph** security clearance is required prior to start… more
    RTX Corporation (01/12/26)
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  • Principal System Safety Engineer

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI - Current At **Raytheon** , the foundation of everything we ... exciting opportunity for a highly motivated **Principal System Safety Engineer ** to join us on the Air and Space...or equivalent Safety Engineering. + Active US government issued TS / SCI security clearance is required. US citizenship… more
    RTX Corporation (10/31/25)
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  • Network Engineer Tier 3

    CACI International (Colorado Springs, CO)
    Network Engineer Tier 3 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee ... basis. **Opportunity:** Team CACI is seeking a Senior Network Engineer to support an Intelligence Community customer's diverse network...experience + 10+ years of related work experience + TS / SCI w/ poly is required + Advanced… more
    CACI International (10/25/25)
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  • Project Engineer , Logistics - Level 2

    Lockheed Martin (Aurora, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... for you\. Lockheed Martin is seeking for a Project Engineer to join our team\. The project engineer...required with the ability to obtain and Maintain a TS / SCI \. **Desired Skills:** \- MS Suite experience… more
    Lockheed Martin (01/08/26)
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  • Software Engineer Integration Team

    CACI International (Aurora, CO)
    …Team Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: Regular Percentage of Travel Required: Up to 10% ... Anticipated Posting End: 1/31/2026 The Opportunity: As an Software Engineer , you will support the integration and testing of...Git / Bitbucket, Confluence / Jira, Gitlab, etc. Active TS / SCI clearance Desired: Working in Agile and… more
    CACI International (12/17/25)
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  • Network Operations Center (NOC) Engineer

    CACI International (Denver, CO)
    Network Operations Center (NOC) Engineer (Tier 2) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI ... in their activities. + Clearly communicates, verbally and written **Qualifications:** + TS / SCI with Poly required + Bachelor's degree in Computer Science,… more
    CACI International (10/25/25)
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  • Principal Java Software Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon, the foundation of everything ... to drive innovation. **Qualifications You Must Have** + Active and transferable ** TS / SCI with Polygraph** US government issued security clearance **with an… more
    RTX Corporation (01/12/26)
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  • Software Engineer

    CACI International (Denver, CO)
    … Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type ... Knowledge of Microsoft software applications and other software applications as required **A TS / SCI clearance is required to begin employment. For this position,… more
    CACI International (11/07/25)
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  • Senior Principal II Engineer Ground…

    BAE Systems (Boulder, CO)
    …the US Secretary of Education, US Department of Education. + A current, active TS / SCI security clearance is required. + Experience in Operations and Sustainment ... seeking a self-motivated Ground Sustainment Management Lead to join our Systems Operations and Sustainment team. Our multi-disciplinary team supports and maintains… more
    BAE Systems (01/09/26)
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  • Software Engineer

    Infinity Systems Engineering (Colorado Springs, CO)
    …Summary: Infinity Systems Engineering is seeking a Principal/Sr Principal Software Engineer to work on-site at Schriever SFB, near Colorado Springs, CO. We ... all aspects of software engineering support required to implement systems . + Also maintain software that handles scheduling of...and creating new ones where needed. Qualifications: + Clearance: TS / SCI CI poly + Education: + Level… more
    Infinity Systems Engineering (12/05/25)
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