• Network Communications Engineer

    SAIC (Boulder, CO)
    …SCCP, or equivalent certification in accordance with DoD 8140 requirements. + Active Top Secret ( TS ) clearance with Sensitive Compartmented Information (SCI) ... **Description** SAIC is seeking a **Network Communications Engineer ** to join our team in Boulder, CO...engineering and integration; enterprise IT, including cloud services; cyber; software ; advanced analytics and simulation; and training. We are… more
    SAIC (08/15/25)
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  • Chief Systems Engineer

    Lockheed Martin (Littleton, CO)
    …&mechanisms, Guidance Navigation and Control, systems architecture, * Active or Current Top Secret Clearance; US Citizenship Required **Desired Skills:** * Prior ... is looking for an innovative and experienced Chief Systems Engineer to support the team that designs, develops, fields...must be a US Citizen for consideration\. **Clearance Level:** Top Secret with Investigation or CV date… more
    Lockheed Martin (09/13/25)
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  • Senior Cyber Security Engineer (P3)

    RTX Corporation (Aurora, CO)
    …years of prior relevant experience + Active and transferable US government issued DoD Top Secret with CI Polygraph security clearance is required prior to start ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with Polygraph At Raytheon, the foundation of everything we do is rooted… more
    RTX Corporation (08/15/25)
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  • Raytheon Systems Engineer I - Integration…

    RTX Corporation (Aurora, CO)
    …hardware **Qualifications We Prefer:** + Active and in-scope US security clearance of Top Secret + Internship experience supporting system integration and test ... eligible for a security clearance​ **Security Clearance:** DoD Clearance: TS /SCI At Raytheon, the foundation of everything we do...test strategy, including plan and procedure development + Integrating software and hardware both in a lab and a… more
    RTX Corporation (09/30/25)
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  • Chief Engineer

    Leidos (Denver, CO)
    …Chantilly, VA + Tucson, AZ + Denver, CO + St. Louis, MO **Clearance Level Required:** Top Secret with the ability to obtain SCI, as well as a Polygraph. ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security...Master's with 10+ years of prior relevant experience. + Top Secret with the ability to obtain… more
    Leidos (09/25/25)
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  • Systems Integration and Test Engineer

    Lockheed Martin (Littleton, CO)
    …or familiarity with testing and problem solving for integrated systems * Active Top Secret clearance, thus US Citizenship is required **Desired Skills:** * ... looking for a highly motivated Systems Integration and Test Engineer to become a member of the Systems Engineering...must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should… more
    Lockheed Martin (08/08/25)
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  • Systems Engineer - Interfaces

    Lockheed Martin (Littleton, CO)
    …and geographical locations to collaborate with and influence others * Active DoD Top Secret security clearance **Desired Skills:** * Degree in Systems, ... Lockheed Martin is looking for a highly motivated Systems Engineer to become a member of the Systems Engineering...must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should… more
    Lockheed Martin (08/09/25)
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  • Sr. Principal Air Vehicle System Test…

    Northrop Grumman (Keystone, CO)
    …selected international or Guam location after the initial 24-month assignment. + Active DoD Top Secret clearance that is in-scope or currently enrolled in CE + ... has an opening for a **Air Vehicle System Test Engineer - Engineering Field Service Representative** (FSR) to join...enrolled in CE, with the ability to obtain a Top - Secret /SCI clearance within a reasonable amount of… more
    Northrop Grumman (09/17/25)
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  • Systems Integration/Test Engineer , Sr

    Lockheed Martin (Colorado Springs, CO)
    …to start the position with the ability to obtain and maintain a Top Secret Clearance\. **Desired Skills:** * PowerShell scripting experience * Familiarity ... for the development of IT solutions across all components of software systems through design, integration, implementation, and support * Coordinate, develop,… more
    Lockheed Martin (09/19/25)
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  • DevOps Engineer III

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …virtualized administration and deployment. + **Ability to obtain and maintain a** ** Top Secret ** **U.S. Security Clearance** **with SCI eligibility required** ... . **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 (07/19/25)
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