• Space Mission Analyst III

    Lockheed Martin (Littleton, CO)
    …tools, such as STK or AFSIM * Must have an active Top Secret clearance with the ability to obtain a TS /SCI clearance * US Citizenship required ... Science, Technology, Engineering, and Mathematics \(STEM\) field * Active TS /SCI clearance * Multi\-domain kill chain, ISR,...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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  • Test Engineer III (Nuclear Survivability)

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this ... EMI issues + Ability to obtain and maintain a Top Secret clearance **Qualifications We...position needs an active US Security Clearance for employment. Non-U.S. Citizens may… more
    Sierra Nevada Company, LLC (07/02/25)
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  • Principal RF Engineer

    RTX Corporation (Aurora, CO)
    …US citizens are eligible for a security clearance ** Security Clearance :** DoD Clearance : TS /SCI At Raytheon, the foundation of everything we do ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is...US citizens are eligible for a security clearance . **Qualifications We Prefer:** + Active TS /SCI… more
    RTX Corporation (08/16/25)
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  • Systems Engineer - Mechanical/Electrical…

    Lockheed Martin (Englewood, CO)
    …engineering skills * US Citizenship with the ability to obtain and maintain a DoD Top Secret security clearance **Desired Skills:** * Excellent ... and implement constructive change * Active Secret or Top Secret DoD security clearance \. ** Security Clearance Statement:** This position… more
    Lockheed Martin (07/30/25)
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  • Satellite Operations Research Analyst III

    Lockheed Martin (Littleton, CO)
    …or a similar high\-level language * Must have an active TOP SECRET clearance with the ability to obtain TS /SCI Security Clearance \. **Desired ... more on how we proudly support Hiring Our Heroes\. ** Security Clearance Statement:** This position requires a..., you must be a US Citizen for consideration\. ** Clearance Level:** TS /SCI **Other Important Information You… more
    Lockheed Martin (08/22/25)
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  • Flight Test Integration - Systems Engineer Senior

    Lockheed Martin (Littleton, CO)
    Secret Security Clearance ; ability to obtain and maintain a Top Secret Security Clearance **Desired Skills:** 3\+ years with ... Experience with multi\-point customer/stakeholder programs engaging in cross\-collaborative environments * Active Top Secret Security Clearance **… more
    Lockheed Martin (08/14/25)
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  • Systems Engineer Sr Staff - MBSE

    Lockheed Martin (Littleton, CO)
    Secret Security Clearance with ability to obtain and maintain a Top Secret security Clearance **Desired Skills:** * Experience using a system ... with DOORS, and Data Hub * Familiar with Agile Methodologies, and tools * Top Secret Security Clearance ** Security Clearance Statement:**… more
    Lockheed Martin (08/08/25)
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  • Responsible System Engineer (RSE) delegate

    Lockheed Martin (Englewood, CO)
    …of all the interdependencies * US citizenship with ability to obtain and maintain a Top Secret Security Clearance **Desired Skills:** * Certified ... and Facility support issues relating to the Trident II \(D5\) Missile * Active Top Secret security clearance ** Security Clearance Statement:**… more
    Lockheed Martin (07/12/25)
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  • Missile Integration Systems Engineer

    Lockheed Martin (Littleton, CO)
    …Active Secret Security Clearance ; ability to obtain and maintain a Top Secret Security Clearance **Desired Skills:** * Experience with one or ... Engineering process including trade studies, design reviews and system verification * Active Top Secret security clearance ** Security Clearance more
    Lockheed Martin (07/12/25)
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  • Mechanical Engineer - Structural Engineering

    Lockheed Martin (Littleton, CO)
    …& NX Nastran\) * US Citizenship and the desire and ability to obtain/maintain a Top Secret /SCI Security Clearance **Desired Skills:** * Experience with ... verbal technical communication skills * Active Top Secret or SCI Security Clearance ..., you must be a US Citizen for consideration\. ** Clearance Level:** TS /SCI w/Poly **Other Important Information… more
    Lockheed Martin (08/21/25)
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