• Principal Software Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …making an impact on a software engineering team + Active Top Secret US Security Clearance w/ SCI eligibility is required **Qualifications We Prefer:** ... and more (https://www.sncorp.com/careers/total-rewards/) . **IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US… more
    Sierra Nevada Company, LLC (11/07/25)
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  • Guidance Navigation and Control Engineer

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... Linux systems or VMs * Work in an Agile DevOps environment with Docker/Container and Kubernetes deployment * Collaborate...Control\) design and analysis tasks \- Possess an Active TS or TS / SCI clearance **Desired… more
    Lockheed Martin (09/10/25)
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  • Network / IT Systems Engineer Sr

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... team is seeking a highly skilled and motivated Systems Engineer to join our infrastructure team\. As a Network...integrity and availability\. **Selected candidate must have an active TS / SCI security clearance for consideration\.** **This is… more
    Lockheed Martin (10/29/25)
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  • Senior Data Engineer

    KBR (Colorado Springs, CO)
    …Hours: Standard Qualifications: Required: + Security Clearance: Must have an active US government Top Secret / SCI security clearance, which is something ... Title: Senior Data Engineer Belong. Connect. Grow. with KBR! KBR's National...defense experts work in unison. We practice Agile and DevOps principles, ensuring rapid iteration, continuous feedback, and integration… more
    KBR (09/04/25)
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  • Sr. Software Engineer

    Leidos (Aurora, CO)
    …Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** **Must have a** ** Top Secret with SCI eligibility and able to obtain a Polygraph.** ... Solutions Business Area, is currently seeking a highly motivated Sr. Software Engineer for the Chinook Program. The Chinook Program delivers mission-driven software… more
    Leidos (10/05/25)
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  • Cloud Operations Engineer , National…

    Amazon (Denver, CO)
    …selected be a US Citizen and must currently possess and maintain an active TS / SCI security clearance with polygraph. *While this role is posted in Herndon, ... AWS National Security we're looking for a Enterprise Account Engineer (EAE) to support our customers' creative and transformative...lead - Current, active US Government Security Clearance of TS / SCI with Polygraph Preferred Qualifications - 7+… more
    Amazon (11/15/25)
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  • Principal Java Software Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon, the foundation of everything ... develop, and test Java code in a Linux, Agile, DevOps environment. We are at the forefront of aerospace...innovation. **Qualifications You Must Have** + Active and transferable ** TS / SCI with Polygraph** US government issued security… more
    RTX Corporation (10/13/25)
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  • Principal Platform Engineer / Linux…

    RTX Corporation (Aurora, CO)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI without Polygraph At Raytheon, the foundation of everything we do ... for existing on-premises infrastructure hardware and has experience in emerging DevOps /DevSecOps & Modernized technologies. The Principal Platform Engineer would… more
    RTX Corporation (11/04/25)
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  • Senior DevSecOps Engineer (Onsite)

    RTX Corporation (Aurora, CO)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI without Polygraph At Raytheon, the foundation of everything we do ... We have an exciting opportunity for a Senior DevSecOps Engineer to join our high-impact team supporting a mission-critical...Helm deployments). + Active and transferable US government issued TS / SCI security clearance is required prior to… more
    RTX Corporation (10/01/25)
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  • Software Developer / Engineer

    CACI International (Aurora, CO)
    … Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: Regular Percentage of Travel Required: None Type of ... Sterling, VA or Aurora, CO * Clearance: Must have TS / SCI with poly (or be willing to...Qualifications are desired:** * Experience with Agile methodologies and DevOps processes and tools * Experience using Amazon Web… more
    CACI International (10/21/25)
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