• Principal Database Developer (Onsite)

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance ​ ** Security Clearance :** TS / SCI without Polygraph **This position is eligible ... , an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be… more
    RTX Corporation (07/10/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …**IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US Security Clearance . US Citizenship status is required ... as this position needs an active US Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance . The… more
    Sierra Nevada Company, LLC (08/08/25)
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  • Network Engineer, Staff

    Lockheed Martin (Boulder, CO)
    …, you must be a US Citizen for consideration\. ** Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of Interest:** ... degree or above\. **Selected candidate must have a Final Secret security clearance prior to...clearance prior to start and ability to obtain TS / SCI clearance * Hands\-on experience… more
    Lockheed Martin (08/15/25)
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  • Algorithms Software Engineer - Level 2/3

    Northrop Grumman (Boulder, CO)
    clearance . **Preferred Qualifications:** + A current active in-scope US Government DoD issued Top Secret security clearance . + Strong statistical ... missile tracking capabilities. You are expected to communicate technical information effectively and clearly, and present technical approaches and...have a current active in-scope US Government DoD issued Secret security clearance at the… more
    Northrop Grumman (08/15/25)
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  • Systems Integration & Test Engineer

    General Atomics (Englewood, CO)
    …+ Must have active TS clearance and be able to obtain and maintain TS / SCI security clearance . + Familiarity with the following tools is desired: ... clearance and be able to obtain and maintain TS / SCI security clearance ....status, gender identity, gender expression, national origin, age, genetic information , military and veteran status, marital status, medical condition,… more
    General Atomics (06/06/25)
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  • Principal Systems Integration & Test Engineer

    Northrop Grumman (Aurora, CO)
    …test plans, test procedures, and test reports. + CLEARANCE : Active US Government DoD ** TS / SCI security clearance ** at the time of application. + ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret ...anomalous behavior in hardware and software systems. + Perform Information Assurance activities, such as Security Technical… more
    Northrop Grumman (08/14/25)
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  • Program Management Stf

    Lockheed Martin (Highlands Ranch, CO)
    …, you must be a US Citizen for consideration\. ** Clearance Level:** TS / SCI w/Poly **Other Important Information You Should Know** **Expression of ... program budgets, schedules, and resources\. \- Must have Active TOP SECRET Clearance with the...Clearance with the ability to obtain and maintain TS / SCI w/poly **Desired Skills:** \- Master of… more
    Lockheed Martin (08/17/25)
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  • Software Engineer Staff

    Lockheed Martin (Littleton, CO)
    …measure and improve their effectiveness and increase their value delivery\. * Active TS / SCI security clearance with CI Polygraph \#LMSpaceSoftwareEng ... Clearance Statement:** This position requires a government security clearance , you must be a US...a US Citizen for consideration\. ** Clearance Level:** TS / SCI w/Poly **Other Important Information more
    Lockheed Martin (08/02/25)
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  • Infrastructure Operations Data Engineer, Infra AGE

    Amazon (Denver, CO)
    …that the candidate selected be a US Citizen and must currently possess an active TS / SCI security clearance . 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… more
    Amazon (05/30/25)
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  • Mid Systems Engineer - SATCOM Training…

    UIC Government Services and the Bowhead Family of Companies (Colorado Springs, CO)
    CLEARANCE REQUIREMENTS: Must currently hold a security clearance at the Top Secret level with SCI eligibility. US Citizenship is a requirement for ... **Overview** Bowhead Information Technologies Service is seeking a mission-focused Systems...squat periodically SECURITY ... Top Secret clearance at this location. \#LI-MN1 Applicants… more
    UIC Government Services and the Bowhead Family of Companies (08/15/25)
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