• Information Systems Security Officer,…

    Lockheed Martin (Littleton, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI w/Poly **Other Important Information You Should Know** **Expression of ... **Description:** **TS/ SCI clearance with willingness to receive Polygraph\.** The...team, program, and government customers to perform as an Information Systems Security Officer \(ISSO\) for Special Access Programs… more
    Lockheed Martin (10/12/25)
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  • Contractor Special Security Officer, Business…

    Lockheed Martin (Littleton, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI **Other Important Information You Should Know** **Expression of Interest:** ... **Description:** **This position requires TS/ SCI clearance\.** The Business Development Security Representative will spearhead new business pursuits for Lockheed… more
    Lockheed Martin (10/10/25)
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  • Java Software Engineer

    CACI International (Aurora, CO)
    …Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/ SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to ... STEM field + 5+ years of relevant software development experience + Active TS/ SCI clearance with Polygraph + Proficiency in AWS infrastructure services + Experience… more
    CACI International (01/01/26)
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  • System Test Engineer

    Kratos Defense & Security Solutions, Inc. (Colorado Springs, CO)
    …+ Current Secret level clearance required + Required to either be able to obtain a TS/ SCI , or currently have a TS/ SCI Preferred Skills and Experience + 5 to 7 ... a plus + Current Top Secret level clearance, with SCI eligibility Applicants selected will be subject to a...and must meet eligibility requirements for access to classified information . #LI-Onsite The grade-based pay range for this job… more
    Kratos Defense & Security Solutions, Inc. (12/31/25)
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  • Systems Engineer Senior Staff (Level 5)

    Lockheed Martin (Littleton, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI **Other Important Information You Should Know** **Expression of Interest:** ... agencies or defense programs * Ability to obtain and maintain a Top Secret/ SCI Security Clearance, thus US Citizenship is required **Desired Skills:** * Deep… more
    Lockheed Martin (12/30/25)
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  • Software Test Engineer Senior

    Lockheed Martin (Aurora, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI w/Poly **Other Important Information You Should Know** **Expression of ... is seeking a talented SW Test Engineer with a TS/ SCI w/ Poly clearanceto work from our Aurora, CO...with relational database \(Oracle\) and SQL for insight into information as required\. * The candidate should be able… more
    Lockheed Martin (12/26/25)
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  • Project Lead - Software and Hardware Deliveries

    Lockheed Martin (Aurora, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI w/Poly **Other Important Information You Should Know** **Expression of ... talented PROJECT LEAD \(SW & HW deliveries\) **with a TS/ SCI w/ Poly clearance** to work from our beautiful...candidate's final work location\. Please note that the salary information is a general guideline only\. Lockheed Martin considers… more
    Lockheed Martin (12/26/25)
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  • Laser Communication Engineer (Level III) - Top…

    Lockheed Martin (Littleton, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI **Other Important Information You Should Know** **Expression of Interest:** ... Top Secret clearance; must be able to obtain a TS/ SCI ; US Citizenship required **Desired Skills:** * Degree in...candidate's final work location\. Please note that the salary information is a general guideline only\. Lockheed Martin considers… more
    Lockheed Martin (12/24/25)
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  • Software Engineer II (Onsite)

    RTX Corporation (Aurora, CO)
    …as only US citizens are eligible for a security clearance​ **Security Clearance:** TS/ SCI - Current At Raytheon, the foundation of everything we do is rooted ... Intelligence, Surveillance & Reconnaissance is our Sub-SBU that delivers information superiority from space, multi-mission automation and orchestration, multiple… more
    RTX Corporation (12/24/25)
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  • RF Engineer (Level II)

    Lockheed Martin (Littleton, CO)
    …clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS/ SCI **Other Important Information You Should Know** **Expression of Interest:** ... signal generators, and/or oscilloscopes * Must be able to obtain a TS/ SCI clearance **Desired Skills:** * Experience with Electrical Ground Support Equipment… more
    Lockheed Martin (12/24/25)
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