• Mechanical Engineer - Stress

    Lockheed Martin (Littleton, CO)
    …* Ability to obtain and maintain a Top Secret security clearance, thus US Citizenship is required\. **Basic Qualifications:** * Knowledge or Experience with ... a cutting edge analysis team for missiles and spacecraft systems \! As the Stress Analyst in support of FBM...obtain and maintain a Top Secret security clearance, thus US Citizenship is required\. **Desired Skills:** *… more
    Lockheed Martin (08/13/25)
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  • Opto-Mechanical Engineer

    General Atomics (Longmont, CO)
    …**Travel Percentage Required** 0 - 25 **Relocation Assistance Provided** Provided ** US Citizenship Required?** Yes **Clearance Required?** Desired **Clearance ... under all applicable laws. To learn more visit https://tbcdn.talentbrew.com/company/499/v2_0/EEO Notices.pdf. US Citizenship is required for certain positions. more
    General Atomics (10/08/25)
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  • Senior / Principal Python Engineer

    SciTec (Boulder, CO)
    …Notice: SciTec exclusively works on US government contracts that require US citizenship for all employees. SciTec cannot sponsor or assume sponsorship ... of employee work visas of any type. Further, US citizenship is a requirement to obtain...8+ years of ongoing professional experience using Linux operating systems . + Demonstratable understanding of principles related to software… more
    SciTec (09/18/25)
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  • Senior Lead Software Engineer

    Lumen (Denver, CO)
    …talent and offer the flexibility you need to thrive and deliver lasting impact. Join us as we digitally connect the world and shape the future. **The Role** We are ... applications, while guiding a small team and modernizing legacy systems . This role demands mastery of engineering, data and...This is a work from home position within the US . **The Main Responsibilities** + Advanced software engineering using… more
    Lumen (10/07/25)
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  • Network Security Engineer II

    EchoStar (Englewood, CO)
    …records will be considered for employment in accordance with local, state, and federal law. US Citizenship is required for certain positions. EEO is the law. At ... and provide system security requirements/guidance on new initiatives, applications, systems and services + Participate in incident response activities **Skills,… more
    EchoStar (10/02/25)
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  • Intern - Information Security Engineer…

    Lumen (Denver, CO)
    …and offer the flexibility you need to thrive and deliver lasting impact. Join us as we digitally connect the world and shape the future. **About Lumen's Internship ... fully remote / work from home in the continental US . **Work Authorization** : US Work Authorization...complex and integrated with many different SAP and non-SAP Systems . The job of SAP Security Analyst is technical… more
    Lumen (10/07/25)
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  • DevOps Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …. **IMPORTANT NOTICE:** This position requires the ability to obtain and maintain a Secret US Security Clearance. US Citizenship status is required as this ... it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation ...or Azure CLI * **Ability to obtain/maintain a Secret US Security Clearance is required** **Qualifications We Prefer:** *… more
    Sierra Nevada Company, LLC (10/04/25)
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  • Sr DevOps Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …. **IMPORTANT NOTICE:** This position requires current/active Top Secret US Security Clearance. US Citizenship status ... it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation ...now, we're applying this tenacity and expertise to the US Air Force's (USAF) Survivable Airborne Operations Center (SAOC)… more
    Sierra Nevada Company, LLC (08/08/25)
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  • Software Engineer

    Lockheed Martin (Littleton, CO)
    …interpersonal and problem solving skills\. * Current Top Secret Clearance and thus US citizenship is required\. **Desired Skills:** * Current TS/SCI * Math ... your experience and passion for engineering to Lockheed Martin, and build the systems which support our nation's defense systems \.** **Basic Qualifications:** *… more
    Lockheed Martin (08/30/25)
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  • Intern - IT Engineer - Summer

    Lumen (Denver, CO)
    …and offer the flexibility you need to thrive and deliver lasting impact. Join us as we digitally connect the world and shape the future. **About Lumen's Internship ... fully remote / work from home in the continental US . + **Work Authorization** : US Work...queries on data sets). + Familiarity with version control systems (eg, Git) for code management and collaboration is… more
    Lumen (10/07/25)
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