• Senior Systems Engineer (MBSE) (Onsite)

    RTX Corporation (Aurora, CO)
    …start date.​ US citizenship is required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** TS /SCI with CI Poly - Current At ... team environment (Government, Military, SETA, and Contractor). + **An active and transferable TS /SCI CI Poly US government issued security clearance is required… more
    RTX Corporation (01/06/26)
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  • Senior Systems Engineer (Onsite)

    RTX Corporation (Schriever AFB, CO)
    …start date.​ US citizenship is required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** TS /SCI with CI Poly - Current At ... Change (RFC) impact reviews and assessment experience. + **An active and transferable TS /SCI CI Poly US government issued security clearance is required prior… more
    RTX Corporation (12/17/25)
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  • Engineer Senior Principal II - Payload…

    BAE Systems (Boulder, CO)
    …sensing payload and mission architecture for the intelligence community. + Current, active TS /SCI or DOD TS security clearance. **Pay Information** Full-Time ... hardware demonstrations. + Work alongside AI&T engineers to support the test configurations, verification approaches, and analysis plans necessary for payload… more
    BAE Systems (10/29/25)
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  • Senior Principal Systems Engineer - CI/CD…

    RTX Corporation (Aurora, CO)
    …date.​ US citizenship is required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** TS /SCI without Polygraph At Raytheon, ... world. We have an exciting opportunity for a **Senior Principal Systems Engineer - Continuous Integration/Development (CI/CD)** **Product Owner** , supporting one of… more
    RTX Corporation (12/09/25)
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  • FPGA Design Engineer - Early Career

    Lockheed Martin (Boulder, CO)
    …& test \)\. * Knowledge of space\-grade/qualified FPGAs and ASICs\. ** Security Clearance Statement:** This position requires a government security clearance, ... Ours\. Lockheed Martin Space is seeking a full\-time Early Career FPGA Design Engineer \. This role will be responsible for: . developing an understanding of mission… more
    Lockheed Martin (01/11/26)
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  • Satellite Systems Engineer , Level 2…

    Lockheed Martin (Aurora, CO)
    …System analysis, System design, Software Design, Software Development and Implementation, Software Test or Cyber Security \. * Experience with 24x7 operations ... Space is a critical domain, connecting our technologies, our security and our humanity\. While others view space as...for you\. We are seeking a full\-time Satellite System Engineer to assist the Space Force operators in all… more
    Lockheed Martin (01/17/26)
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  • Senior Principal Engineer , Systems…

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** DoD Clearance: TS /SCI At Raytheon, the foundation of everything ... an immediate opening for a temporary Senior Principal Systems Engineer . This role will support the program's deployed systems...security clearance is required prior to start date ( TS /SCI with current polygraph). US citizenship is required, as… more
    RTX Corporation (01/07/26)
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  • Software Development Engineer

    Kratos Defense & Security Solutions, Inc. (Colorado Springs, CO)
    …with customers + Experience designing/architecting a solution to satisfy them, and developing the test methodology to verify them + TS Clearance + Experience in ... our nation and global customers. Kratos is seeking a Software Development Engineer . The position will support dynamic, agile projects implementing a SecDevOps… more
    Kratos Defense & Security Solutions, Inc. (11/16/25)
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  • Big Data Systems Engineer (Remote)

    KBR (Denver, CO)
    …role - protecting our national security . KBR is seeking a Big Data Systems Engineer to join our team. The successful candidate will be part of the KBR team ... Title: Big Data Systems Engineer (Remote) Belong, Connect, Grow, with KBR! KBR's...Hours: Standard Basic Qualifications/Knowledge: + Must have an active TS /SCI Security Clearance to be considered for… more
    KBR (10/28/25)
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  • Cyber Engineer Principal

    SAIC (Broomfield, CO)
    …to senior leadership and stakeholders. + Assist in the authoring and peer-reviews cyber security test plans and detailed test procedures that include ... with project specifications. **Qualifications** **Required Skills and Qualifications:** + Active TS /SCI clearance. + Bachelor's degree in Cyber Security ,… more
    SAIC (01/08/26)
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