• Principal / Sr. Principal Algorithms Software…

    Northrop Grumman (Boulder, CO)
    …needs. + Applicants must have a current active in-scope US Government DoD issued Secret security clearance at the time of application which is required ... + A current active in-scope US Government DoD issued Top Secret security clearance . + Strong statistical background and skills. + Experience in… more
    Northrop Grumman (09/30/25)
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  • Algorithms Software Engineer - Level 2/3

    Northrop Grumman (Boulder, CO)
    …needs. + Applicants must have a current active in-scope US Government DoD issued Secret security clearance at the time of application which is required ... + A current active in-scope US Government DoD issued Top Secret security clearance . + Strong statistical background and skills. + Experience in… more
    Northrop Grumman (09/04/25)
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  • Cable and Harness ElectroMechanical Engineer II

    Lockheed Martin (Englewood, CO)
    …is needed to start in this position, you will need to obtain and maintain a ** Secret clearance ** , thus **US Citizenship** is required\. - - - **Why Lockheed ... and able to obtain and maintain to obtain a Secret Clearance , thus US Citizenship is required\....reviews \(SRR, PDR, CDR, etc\.\) * Hands\-on hardware experience ** Security Clearance Statement:** This position requires a… more
    Lockheed Martin (09/27/25)
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  • Program Manager II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …. **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as ... dynamic situations. + Ability to obtain and maintain Top Secret Clearance . **Qualifications We Prefer:** + Project...this position needs an active US Security Clearance for… more
    Sierra Nevada Company, LLC (10/22/25)
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  • Senior Program Manager

    RTX Corporation (Aurora, CO)
    …or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... agile development, etc.) + An active and transferable Top Secret /SCI level US government issued security clearance is required prior to start date. US… more
    RTX Corporation (10/16/25)
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  • (DoD SkillBridge) Software Engineer/Principal…

    Northrop Grumman (Aurora, CO)
    …+ Experience designing, developing, and troubleshooting in Java or Python + **Current Top Secret /SCI security clearance required to apply** + Candidate must ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: No...they're making history. As one of the largest global security companies in the world, Northrop Grumman is proud… more
    Northrop Grumman (09/12/25)
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  • Military Fellowship Program: Supply Chain Program…

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …needs. **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required as ... this position needs an active US Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance . The… more
    Sierra Nevada Company, LLC (10/04/25)
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  • Space Mission Analyst III

    Lockheed Martin (Littleton, CO)
    …years experience in modeling and simulation tools, such as STK or AFSIM * Must have an active Top Secret clearance with the ability to obtain a TS/SCI ... a Science, Technology, Engineering, and Mathematics \(STEM\) field * Active TS/SCI clearance * Multi\-domain kill chain,...more on how we proudly support Hiring Our Heroes\. ** Security Clearance Statement:** This position requires a… more
    Lockheed Martin (08/15/25)
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  • Surety Integration Engineer

    Lockheed Martin (Englewood, CO)
    …of safety related testing * US Citizenship with the ability to obtain a Top Secret security clearance **Desired Skills:** * Experience with DoD missile ... more subsystems or fields outside of Systems Engineering * Active DoD security clearance **..., you must be a US Citizen for consideration\. ** Clearance Level:** Top Secret **Other Important Information… more
    Lockheed Martin (10/10/25)
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  • Network Operations Center Help Desk Engineer

    L3Harris (Colorado Springs, CO)
    …for our Colorado Springs, CO site. The Senior Network Specialist Engineer requires an active Top Secret Clearance with SCI eligibility. They will have ... 503, or DIACAP + Active DOD 8140 (eg CISSP or Security +) + Must have a Top Secret clearance with eligibility to SCI #LI-CS3 L3Harris Technologies is… more
    L3Harris (10/01/25)
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