• Senior Operations Analyst

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …experience to decision-making and technical audiences + **An active Top Secret security clearance is required** **Preferred:** + Master's degree or higher ... of experiments + Researching military scenario performance factors + Modeling and simulation of military systems and...+ An active Top Secret with SCI eligibility US Security Clearance . Estimated Starting Salary Range: $143,487.14… more
    Sierra Nevada Company, LLC (05/30/25)
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  • Electrical Engineer II - EMI/EMC

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and development teams + The ability to obtain/maintain a Top Secret US Security Clearance is required **Qualifications We Prefer:** + Understanding of ... it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation ...+ A current active Secret or Top Secret US Security Clearance At Sierra Nevada Corporation (SNC)… more
    Sierra Nevada Company, LLC (05/20/25)
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  • Cyber Engineer II - (Onsite)

    RTX Corporation (Colorado Springs, CO)
    …US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship ... required, as only US citizens are eligible for a security clearance ​ ** Security Clearance...working on an Agile Product team in developing cyber security systems engineering capabilities while adhering to… more
    RTX Corporation (06/19/25)
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  • Staff Quantum Optical Research Scientist

    Lockheed Martin (Louisville, CO)
    **Description:** **This position requires the ability to obtain aU\.S\. security clearance \. U\.S\. Citizenship is required\.** Are you passionate about ... have direct and relevant experience in the design and modeling of complex physical and chemical systems ,...ability to obtain and maintain a US government Secret security clearance **Desired Skills:** . Knowledge of… more
    Lockheed Martin (07/12/25)
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  • Test Engineer III (Nuclear Survivability)

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this position needs an ... to perform basic coding + Experience in circuit level modeling tools + Active Top Secret clearance ...active US Security Clearance for employment. Non-U.S. Citizens may… more
    Sierra Nevada Company, LLC (07/02/25)
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  • Responsible System Engineer (RSE) delegate

    Lockheed Martin (Englewood, CO)
    …RSEs/CPEs and delegates\. This position requires the ability to obtain a DOD Top Security clearance \. US Citizenship required\. To promote the sharing of ideas, ... Martin is looking for an energetic and high performing Systems Engineer to join the team in Englewood, CO...with ability to obtain and maintain a Top Secret Security Clearance **Desired Skills:** * Certified Principal… more
    Lockheed Martin (07/12/25)
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  • Electrical Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and development teams + The ability to obtain and maintain a Secret US Security Clearance is required ​ **Qualifications We Prefer:** + Experience with ... it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation ...the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required… more
    Sierra Nevada Company, LLC (06/07/25)
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  • Electronics Packaging Engineer III

    Lockheed Martin (Englewood, CO)
    …including design reviews \(SRR, PDR, CDR, etc\.\) * Hands\-on hardware experience ** Security Clearance Statement:** This position requires a government ... modeling experience, model based engineering * While no clearance is needed to start in this position, you...security clearance , you must be a US Citizen for consideration\.… more
    Lockheed Martin (07/12/25)
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  • Mass Properties Engineer

    Lockheed Martin (Littleton, CO)
    …understanding of systems thinking skills and behaviors * Active Secret clearance ** Security Clearance Statement:** This position requires a government ... strategic deterrence\. At Lockheed Martin, we develop and build systems that really move\. Some in space, while others...Citizenship with the ability to obtain and maintain a** ** security clearance ** **Desired Skills:** * Perform simple… more
    Lockheed Martin (07/12/25)
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  • Aerospace Engineer II - Propulsion

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …teams + **The ability to obtain and maintain a Top Secret US Security Clearance is required** **Qualifications We Prefer:** + Familiarity with Computer ... it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation ...the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required… more
    Sierra Nevada Company, LLC (07/09/25)
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