• Systems Modeling and Analysis…

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** ... field and/or equivalent work experience * Demonstrated ability performing systems modeling and analysis * Experience in mission analysis...MATLAB or other similar tool\) * Active or Current TS / SCI with Poly required to start **Desired… more
    Lockheed Martin (09/24/25)
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  • Space Systems Cyber Security…

    General Atomics (Englewood, CO)
    …our cutting-edge space systems solutions. **DUTIES AND RESPONSIBILITIES:** Serve as an Information Systems Security Engineer (ISSE) for one or more ... commercial, and academic mission requirements. We're seeking a Space Systems Cyber Security Engineer to join our...achieve program milestones. + Maintains the strict confidentiality of sensitive information . + Performs other duties as… more
    General Atomics (07/09/25)
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  • Principal Systems Engineer - Project…

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with CI Poly - Current At Raytheon, the foundation of ... Experience in leadership role. + **An active and transferable TS / SCI CI Poly US government issued security...We Prefer** + Experience with Software Development processes. + System Testing and diagnostic experience. + Experience of baseline… more
    RTX Corporation (09/19/25)
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  • Big Data Systems Engineer (Remote)

    KBR (Denver, CO)
    Title: Big Data Systems Engineer (Remote) Belong, Connect, Grow, with KBR! KBR's National Security Solutions (NSS) team provides high-end engineering and ... our national security. KBR is seeking a Big Data Systems Engineer to join our team. The...Hours: Standard Basic Qualifications/Knowledge: + Must have an active TS / SCI Security Clearance to be considered for… more
    KBR (07/29/25)
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  • Network Engineer (Levels 2, 3)

    CACI International (Denver, CO)
    Network Engineer (Levels 2, 3) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: ... Services (TCS) program is actively hiring a team of TS / SCI cleared Network Engineers to support an...cybersecurity posture in support of national security. For additional information and a list of current openings, please visit… more
    CACI International (08/11/25)
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  • Software Engineer Staff

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** ... you\. Space Protection Programs is seeking a skilled Software Engineer and Agile Leader who can guide a team...while building solid relationships across Agile Development Teams\. * TS / SCI w/ poly **Desired Skills:** Desired skills… more
    Lockheed Martin (08/02/25)
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  • Facility Operations Center Engineer , ADC…

    Amazon (Denver, CO)
    …requires that the candidate selected must currently possess and maintain an active TS / SCI security clearance with polygraph. The position further requires that, ... after start, the selected candidate obtain and maintain an active TS / SCI security clearance with polygraph or commensurate clearance for each government agency… more
    Amazon (07/24/25)
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  • Scientist, Cyber Infrastructure Systems

    L3Harris (Colorado Springs, CO)
    …domains in the interest of national security. Job Title: Senior Cyber Infrastructure Systems Engineer Job Code: 27322 Job Location: Colorado Springs, CO Job ... Specific to this position: Seeking a Senior Cyber Infrastructure Systems Engineer to provide technical leadership and...in a dynamic, fast paced, team-oriented environment + Active TS / SCI DOD security clearance + Experience with… more
    L3Harris (08/17/25)
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  • Principal/Sr. Principal Cyber Systems

    Northrop Grumman (Aurora, CO)
    …(NGSP) is seeking a highly qualified individual to join our team as a **Principal Cyber Systems Engineer or Sr. Principal Cyber Systems Engineer .** The ... in lieu of degree. + **Must have an active TS / SCI security clearance with a Full Scope...process. **Preferred Qualifications:** + DoD IAT Level III Certified Information Systems Security Professional (CISSP) Certification. +… more
    Northrop Grumman (09/16/25)
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  • Senior Systems Engineer , Air…

    RTX Corporation (Aurora, CO)
    …a safer, more secure world. Raytheon, an RTX business, is looking for a **Senior** ** Systems Engineer ** to join our systems engineering team. Our Engineers ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI without Polygraph At Raytheon, the foundation of everything we do… more
    RTX Corporation (08/08/25)
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