• Systems Engineer II - Military Operations Research

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …programming or standard tools such as Matlab, Python, and C++. + **A current/active Top Secret US Security Clearance with SCI Eligibility is required.** ... **Qualifications We Prefer:** + Military strategy and/or service + Master's degree or higher in related field of study (operations research, engineering, mathematics, physics) + AFSIM Developer Training or AFSIM Plug-in development experience + Experience in… more
    Sierra Nevada Company, LLC (08/20/25)
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  • Senior Systems Engineer

    Sigmatech, Inc. (Colorado Springs, CO)
    …progressively more complex experience in network design, development, and documentation + An active Top Secret /SCI security clearance is required + Must have ... recent and relevant system engineering experience + Strong written and oral communication skills + Must have experience developing training programs and instructing engineering + Very strong interpersonal skills and communication with all levels of management… more
    Sigmatech, Inc. (08/08/25)
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  • Curriculum Developer (TS/SCI Required)

    Sigmatech, Inc. (Colorado Springs, CO)
    …+ International/Domestic Travel may be required - less than 10% + An active Top Secret /SCI security clearance is required Desired Skills and Experience: ... + Firm grasp and desire to learn emerging digital learning tools + Ability to work collaboratively with a team of learning developers and faculty + Models continual improvement and demonstrates lifelong learning + Prior experience teaching is a plus! +… more
    Sigmatech, Inc. (06/28/25)
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  • Information Systems Security Officer, Classified…

    Lockheed Martin (Colorado Springs, CO)
    **Description:** **This position requires Current Secret clearance and ability to obtain Top Secret \.** Classified Cyber Security ISSOs help secure ... this role's responsibility\. **Basic Qualifications:** * Current Secret clearance and ability to obtain Top Secret * DoD 8570 IAT Level II certification… more
    Lockheed Martin (08/13/25)
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  • Associate Director, Proposal Management

    RTX Corporation (Aurora, CO)
    …required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** Top Secret - Current At Raytheon, the foundation of ... US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (08/13/25)
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  • Principal / Sr. Principal Software Engineer…

    Northrop Grumman (Boulder, CO)
    …of application. All applicants must have the ability to obtain and maintain a Top Secret /SCI (TS/SCI) security clearance . **Preferred Qualifications:** + A ... current active in-scope US Government DoD issued Top Secret /SCI (TS/SCI) security clearance + OO design pattern and modern data structure experience +… more
    Northrop Grumman (08/13/25)
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  • Analog Modeling and Simulation Engineer Level 3/4

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Citizenship Required + Ability to obtain and maintain a Top Secret /Sensitive Compartmented Information (TS/SCI) security clearance (US Citizenship is a… more
    Northrop Grumman (08/01/25)
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  • Lead Software Engineer

    Frontier Technology Inc. (Colorado Springs, CO)
    …with team members. Education/Qualifications + Must be a US Citizen and possess an active Top Secret (TS) (minimum) security clearance (must also be SCI and ... range for candidates in other locations. #LI-Onsite #LI-GH1 ID2025-6505 CategoryIT TypeRegular Full-Time Location : LocationUS-CO-Colorado Springs TelecommuteNo Clearance more
    Frontier Technology Inc. (06/20/25)
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  • Principal Systems Engineer /Sr. Principal Systems…

    Northrop Grumman (Aurora, CO)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, ... Engineer:** + Must have an **active** US Government DoD Top Secret /Sensitive Compartmented Information (SCI) security clearance **at the time of… more
    Northrop Grumman (07/10/25)
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  • Systems Integration Engineer

    Lockheed Martin (Littleton, CO)
    …DoD Secret security clearance with ability to obtain a Top Secret **Desired Skills:** * Highly effective communication skills, including ability to ... clearance , you must be a US Citizen for consideration\. ** Clearance Level:** Top Secret **Other Important Information You Should Know** **Expression of… more
    Lockheed Martin (08/16/25)
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