• Virtualization Systems Engineer

    Lockheed Martin (Colorado Springs, CO)
    …protocols, network traffic analysis, diagnostic and troubleshooting experience **Desired Skills:** * Top Secret Clearance is a plus * Authentication & encryption ... missile defense technologies\. **The Work** As a Virtualization Systems Engineer , you will design, implement, and manage virtualized infrastructure solutions… more
    Lockheed Martin (09/05/25)
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  • Manager, Info Security Systems Engineer

    L3Harris (Broomfield, CO)
    …domains in the interest of national security. Job Title: Manager, Info Security Systems Engineer Secret - Boulder, CO Job Code: 31261 Job Location: Boulder/North ... 5200.39 for the identification and protection of CPI. + Engineer trustworthy and secure systems in accordance with NIST...years of prior related experience. + Minimum of active Top Secret /SCI security clearance required, with polygraph… more
    L3Harris (11/15/25)
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  • Project Systems Engineer

    Kratos Defense & Security Solutions, Inc. (Colorado Springs, CO)
    …and operational system utilization Required Experience: + US Citizen + Current Top - Secret clearance with SCI eligibility. + Bachelor's Degree in engineering ... to our nation and global customers. Kratos has an opportunity for a System Engineer in support of a Department of Defense (DOD) customer. The DOD customer oversees… more
    Kratos Defense & Security Solutions, Inc. (11/06/25)
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  • Principal Human Factors Engineer

    RTX Corporation (Aurora, CO)
    …Human Factors, Program tasks and analyses. + Active and transferable US government issued Top Secret SCI Clearance. **What We Offer** + Our values drive our ... citizens are eligible for a security clearance​ **Security Clearance:** Secret - Current At Raytheon, the foundation of everything...exciting opportunity for a highly motivated Principal Human Factors Engineer to join us onsite in a closed area… more
    RTX Corporation (10/23/25)
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  • Principal Systems Engineer

    Leidos (Aurora, CO)
    …experience may be substituted for a bachelor's degree. + **Clearance Requirement: Top Secret /SCI with Polygraph** **Preferred Qualifications** + Experience in ... **Leidos** has a new and exciting opportunity for a Principal Systems Engineer in our **National Security Sector's (NSS) Cyber & Analytics Business Area… more
    Leidos (10/09/25)
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  • Systems Integration and Test Engineer Staff

    Lockheed Martin (Littleton, CO)
    …Experience with system of systems testing\. Experience with test automation software \(TestComplete\)\. Experience with GEOINT workflows TS /SCI clearance needed ... who share our passion for excellence and innovation\. If you're a skilled engineer looking for a challenging and rewarding opportunity, join the Erebus Team and… more
    Lockheed Martin (11/13/25)
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  • RF Engineer

    Lockheed Martin (Littleton, CO)
    …Experience with Microsoft software products including Visio * Experience with CAD software suites such as AutoCAD * Active TS /SCI security clearance is ... team is seeking a highly skilled and motivated RF Engineer Stf to join our development team\. As member...test, and deploy a major hardware system including antennas, software defined radios, and related RF connections as part… more
    Lockheed Martin (11/09/25)
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  • RF Engineer

    Lockheed Martin (Littleton, CO)
    …Experience with Microsoft software products including Visio * Experience with CAD software suites such as AutoCAD * TS /SCI Clearance **Desired Skills:** * ... team is seeking a highly skilled and motivated RF Engineer to join our development team\. As member of...test, and deploy a major hardware system including antennas, software defined radios, and related RF connections as part… more
    Lockheed Martin (10/11/25)
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  • DevOps Engineer (Level 3 OR 4)

    Northrop Grumman (Aurora, CO)
    …OR Sr. Principal level. **Basic Qualifications:** + **Candidate must possess an active Top Secret /SCI clearance at the time application AND CI Polygraph to ... Systems is seeking a **Principal (Level 3) OR Sr. Principal (Level 4) DevOps Engineer ** to join our team based in **Aurora, Colorado** . **Essential Functions:** +… more
    Northrop Grumman (11/13/25)
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  • Systems Engineer , Survivability (Level IV)

    Lockheed Martin (Littleton, CO)
    …with approximately 9 years or more of professional experience * Active TOP SECRET security clearance **Security Clearance Statement:** This position requires ... space and find a career that's built for you\. As an experienced **Survivability Engineer ** , you will lead and/or support the Specialty Engineering team in one or… more
    Lockheed Martin (11/07/25)
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