• Systems Security Engineer I

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …required education + Security+ CE Certification + **Ability to obtain/maintain to Top Secret US Security Clearance is required** **Qualifications We Prefer:** + ... **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/27/25)
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  • Senior Cyber Security Development Engineer

    Lockheed Martin (Colorado Springs, CO)
    …certification \(Security\+, CEH, CYSA\+, CISSP, or equivalent\)\. * Must possess a Secret Clearance with eligibility to obtain TS/SCI Security Clearance ... , you must be a US Citizen for consideration\. ** Clearance Level:** Secret **Other Important Information You Should Know** **Expression of Interest:**… more
    Lockheed Martin (08/27/25)
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  • Sr Software Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …10 or more years of relevant experience + **The ability to obtain/maintain a Secret US Security Clearance is required** + Experience with architecting and ... **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/26/25)
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  • UAS Conceptual Design Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …to develop innovative design solutions. + **Ability to obtain/maintain a Top Secret US Security Clearance is required** **Qualifications We Prefer:** + ... **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/25/25)
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  • Electrical Engineer I (For Summer 2025 Interns…

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …design and development teams + The ability to obtain and maintain a Secret US Security Clearance is required **Qualifications We Prefer:** + Exposure ... . **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/25/25)
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  • Engineering Manager II - Software

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and organizational skills + **The ability to obtain and maintain a Top Secret US Security Clearance is required** **Qualifications We Prefer:** + Experience ... **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/25/25)
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  • Sr Project Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …& Evaluation Level III, DAWIA Program Management Level III. + An active Top Secret with SCI eligibility US Security Clearance is required **Qualifications We ... (https://www.sncorp.com/careers/total-rewards/) . **IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US Security Clearance .… more
    Sierra Nevada Company, LLC (08/24/25)
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  • ISR Business Development Staff

    Lockheed Martin (Littleton, CO)
    …Lockheed Martin's comprehensive benefits package \#rmshotmiljobs **Basic Qualifications:** Final Top Secret Clearance \(Active\) Experience in Capture, BD, or ... security clearance , you must be a US Citizen for consideration\. ** Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression… more
    Lockheed Martin (08/16/25)
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  • Sr Solution Architect

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and experience across multiple technical domains​ + Ability to obtain/maintain a Top Secret US Security Clearance is required **Qualifications We Prefer:** + ... **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/14/25)
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  • Engineering Manager II - Mechanical Engineering

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …communication and organizational skills + **The ability to obtain and maintain a Top Secret US Security Clearance is required** ​ **Qualifications We Prefer:** + ... **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Top Secret US Security Clearance . US Citizenship status is required as this… more
    Sierra Nevada Company, LLC (08/13/25)
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