• Cyber Security Engineer

    Lockheed Martin (Boulder, CO)
    …\(RMF\) - NIST SP 800‑53\. * Ability to obtain and maintain a DoD Secret clearance \( TS /SCI preferred\)\. **Desired Skills:** * Bachelor's degree in ... require the ability to obtain and maintain a DoD clearance up to TS /SCI and the ability..., you must be a US Citizen for consideration\. ** Clearance Level:** Secret **Other Important Information You… more
    Lockheed Martin (10/11/25)
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  • Mid-Level Systems Engineer

    Leidos (Aurora, CO)
    …+ Alexandria, VA + Chantilly, VA + Aurora, CO + St. Louis, MO + Tucson, AZ ** Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations,… more
    Leidos (10/11/25)
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  • Senior Systems Engineer

    Leidos (Aurora, CO)
    …+ Alexandria, VA + Chantilly, VA + Aurora, CO + St. Louis, MO + Tucson, AZ ** Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations,… more
    Leidos (10/11/25)
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  • Test Automation Engineer

    General Atomics (Englewood, CO)
    …required, including during test events, as well as travel when necessary. + Must have active TS clearance and be able to obtain and maintain TS /SCI security ... requirements. Our Space Systems team is looking to add a Test Automation Engineer to support small satellite development programs. In this role, you'll be… more
    General Atomics (10/25/25)
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  • Cloud Cyber Engineer

    CACI International (Denver, CO)
    Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular ... and security tradeoffs and other decisions. **Qualifications:** **_Required:_** + An active TS /SCI clearance with Poly + Bachelor's degree in information… more
    CACI International (11/11/25)
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  • Senior Principal Engineer , Systems…

    RTX Corporation (Aurora, CO)
    …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...experience + Active and transferable US government issued security clearance is required prior to start date ( TS more
    RTX Corporation (11/15/25)
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  • Mission System Engineer

    CACI International (Aurora, CO)
    …as we pioneer modern software development for our customer! **Qualifications:** _Required:_ + Clearance : Must have TS /SCI with CI poly (or be willing to take ... Mission System Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of… more
    CACI International (10/15/25)
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  • Engineer II - Space Vehicle Simulators…

    BAE Systems (Boulder, CO)
    …to develop real-time simulators of BAE SMS Space Vehicles. This position is for a software engineer that will report to the manager of Space Vehicle Simulators. ... you will work at the forefront of hardware and software integration for a space missions. The Simulators we...Education, US Department of Education. + A current, active TS /SCI security clearance is required with the… more
    BAE Systems (10/11/25)
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  • Spacecraft Mechanical Engineer

    General Atomics (Englewood, CO)
    …required. + Experience with MATLAB is helpful + Ability to obtain and maintain a DoD TS -SCI security clearance is required, an active and current TS /SCI ... satellite technology development. We are looking for an experienced Spacecraft Mechanical Engineer with prior experience in dealing with military and space systems… more
    General Atomics (10/17/25)
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  • Senior Mission Systems Engineer - MSE…

    RTX Corporation (Aurora, CO)
    …date.​ US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS /SCI with CI Poly - Current At ... + Experience in organizational and time management. + **An active and transferable TS /SCI CI Poly US government issued security clearance is required prior… more
    RTX Corporation (11/07/25)
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