• Systems Engineer (Level 3), RF Systems…

    Lockheed Martin (Littleton, CO)
    …considered, applicants must be U\.S\. citizens and hold an active Top Secret / Sensitive Compartmented Information \( TS /SCI\) clearance\. \- This position is ... and software systems at the subsystem or system level\. \- Active TS /SCI security clearance required\. **Desired Skills:** \- Prior Lockheed Martin Test Engineering… more
    Lockheed Martin (12/25/25)
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  • Software Engineer II (Onsite)

    RTX Corporation (Aurora, CO)
    …clearance is required prior to start date. An active and transferable US government issued Top Secret security clearance that can be crossed over to a TS ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI - Current At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (12/24/25)
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  • Guidance, Navigation & Control Engineer

    Lockheed Martin (Highlands Ranch, CO)
    …the selected applicant must: 1\) Be eligible to obtain, and maintain, Top Secret with adjudicated SCI Eligibility \(i\.e\. TS /SCI\) 2\) Be willing to consent ... on control system design & analysis * Possess active TS /SCI clearance with CI Poly * Experience with flight...must be a US Citizen for consideration\. **Clearance Level:** TS /SCI w/Poly **Other Important Information You Should Know** **Expression… more
    Lockheed Martin (12/13/25)
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  • Lead Systems Engineer (Level 5)

    Lockheed Martin (Littleton, CO)
    …considered, applicants must be U\.S\. citizens and hold an active Top Secret / Sensitive Compartmented Information \( TS /SCI\) clearance\. \- This position is ... software verification and test at the subsystem or system level\. \- Active TS /SCI security clearance required\. \- Ability to support quarterly travel as needed\.… more
    Lockheed Martin (12/11/25)
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  • Systems Engineer Senior Staff (Level 5)

    Lockheed Martin (Littleton, CO)
    …space agencies or defense programs * Ability to obtain and maintain a Top Secret /SCI Security Clearance, thus US Citizenship is required **Desired Skills:** ... a billion people worldwide\. Lockheed Martin is looking for a dedicated Systems Engineer to join the team in Waterton, Colorado supporting Space Development Agency's… more
    Lockheed Martin (12/30/25)
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  • Engineer V

    General Atomics (Englewood, CO)
    …0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Colorado **Clearance Level:** Top Secret (SCI access eligible) **Pay Range Low:** 105,890 ... Systems team is looking to add a Test Automation Engineer to support small satellite development programs. In this...well as travel when necessary. + Must have active TS clearance and be able to obtain and maintain… more
    General Atomics (12/11/25)
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  • Engineer II - Mission Ops Systems…

    BAE Systems (Boulder, CO)
    …by the US Secretary of Education, US Department of Education. + A current, active Top Secret security clearance is required with ability to obtain and maintain ... **Job Description** We re seeking a self-motivated systems engineer to join our Systems Operations & Sustainment...TS /SCI. + Experience in mission operations, including one or… more
    BAE Systems (11/07/25)
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  • Engineer VIII

    General Atomics (Englewood, CO)
    …0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Colorado **Clearance Level:** Top Secret (SCI access eligible) **Pay Range Low:** 140,940 ... approximately 25% of the time. + Must have active Top Secret DoD clearance and be able...DoD clearance and be able to obtain and maintain TS /SCI security clearance. **US Citizenship Required?:** Yes **Experience Level:**… more
    General Atomics (12/11/25)
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  • System Test Engineer

    Kratos Defense & Security Solutions, Inc. (Colorado Springs, CO)
    …Regulations and experience in Air Force formal testing is a plus + Current Top Secret level clearance, with SCI eligibility Applicants selected will be subject ... and global customers. Kratos is seeking a System Test Engineer to join an exciting team of test engineers...technical concepts orally and in written form. + Current Secret level clearance required + Required to either be… more
    Kratos Defense & Security Solutions, Inc. (12/31/25)
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  • Systems Engineer

    Lockheed Martin (Denver, CO)
    …MUST BE AU\.S\. CITIZEN \- The selected candidate must possess an active Top Secret clearance with SCI eligibility to start\. **Basic Qualifications:** + ... **Description:** You will be a **Systems Engineer ** for the R&D team that investigates and...**Active TS clearance with SCI elegability required prior to start\.**… more
    Lockheed Martin (12/20/25)
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