• Systems Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …(V&V) principles + The ability to obtain and maintain a Secret US Security Clearance is required **Qualifications We Prefer:** + Experience with requirements ... way of living. Join our team! As a Systems Engineer II within our Mission Systems Integration directorate, you'll...the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required… more
    Sierra Nevada Company, LLC (09/30/25)
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  • Sr Principal Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …(V&V) principles + The ability to obtain and maintain a Secret US Security Clearance is required **Qualifications We Prefer:** + Demonstrated capability in ... way of living. Join our team! As a Systems Engineer , you will be using your skills and expertise...the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required… more
    Sierra Nevada Company, LLC (09/25/25)
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  • Mission Demo 4 (MD4) Chief Engineer

    Lockheed Martin (Highlands Ranch, CO)
    …Willingness to mentor junior engineers Ability to obtain and maintain a Top Secret security clearance **Desired Skills:** * Prior experience as a CE, Systems ... you\. Lockheed Martin \(LM\) Space is seeking a Chief Engineer \(CE\) to lead the Mission Demo 4 \(MD4\)...C/D, IRAD, or "go\-fast" development environment * Active TS/SCI clearance ** Security Clearance Statement:** This… more
    Lockheed Martin (10/01/25)
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  • Principal Data Modeler and Database…

    RTX Corporation (Aurora, 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...Raytheon is hiring a **Principal Data Modeler and Database Engineer ** to support our teams in **Richardson TX** or… more
    RTX Corporation (07/16/25)
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  • DevOps Engineer III

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …deployment. + **Ability to obtain and maintain a** **Top Secret** **U.S. Security Clearance ** **with SCI eligibility required** **Qualifications We Prefer:** + ... 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… more
    Sierra Nevada Company, LLC (07/19/25)
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  • Systems Development Engineer II, ADC…

    Amazon (Denver, CO)
    …that the candidate selected must currently possess and maintain an active TS/SCI security clearance . The position further requires that, after start, the ... selected candidate obtain and maintain an active TS/SCI security clearance with polygraph or commensurate ...source solutions for our customers, supporting execution of various security campaigns (blocked software , host patching), and… more
    Amazon (07/23/25)
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  • Platform Engineer II / Full Stack Developer…

    RTX Corporation (Aurora, 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...secure world. We are seeking a highly motivated **Platform Engineer II / Full Stack Developer** . The ideal… more
    RTX Corporation (09/19/25)
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  • DevSecOps Engineer

    SMX (Boulder, CO)
    …+ This position will require the ability to obtain a US government DoD Top Secret Security clearance . Interim or Active DoD Top Secret clearance or higher is ... DevSecOps Engineer (4387)at SMX(View all jobs) (https://www.smxtech.com/careers/) Boulder, CO...and Confluence. + Interim or Active DoD TOP SECRET security clearance or higher. **Application Deadline:** October… more
    SMX (07/30/25)
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  • Test Automation Engineer

    Parsons Corporation (Colorado Springs, CO)
    …environment employing Agile methodologies. + Currently hold an active Secret or higher security clearance . **Desired Skills:** + Knowledge of space C2 concepts ... + certification or willing to obtain one. + Currently hold a Top Secret security clearance with SCI eligibility ** Security Clearance Requirement:**… more
    Parsons Corporation (08/22/25)
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  • Chief Systems Engineer

    Lockheed Martin (Littleton, CO)
    …applying MBSE concepts in a Systems Engineering role * Prior SAP access ** Security Clearance Statement:** This position requires a government security ... the successful execution of activities of major significance to the nation's National Security Enterprise\. As the program's Chief Systems Engineer , you will… more
    Lockheed Martin (09/13/25)
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