• Space-Based Infrared Systems (SBIRS)…

    INTECON (CO)
    Clearance: Top Secret / SCI (US citizenship required) Location: Buckley SFB, CO and Beale AFB, CA (On-site with limited telework) Work Type: Onsite with ... Summary INTECON is seeking a highly skilled Space Systems Engineer to support critical national security space programs. In...Space Force operations, acquisition, and sustainment policies. + Active Top Secret / SCI clearance at the… more
    INTECON (11/09/25)
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  • Engineer V

    General Atomics (Englewood, CO)
    …Required:** 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Colorado **Clearance Level:** Top Secret ( SCI access eligible) **Pay Range Low:** ... have active TS clearance and be able to obtain and maintain TS / SCI security clearance. **US Citizenship Required?:** Yes **Experience Level:** Senior (8+… more
    General Atomics (12/11/25)
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  • Mission Systems Engineer - Clearance…

    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** ... to effectively communicate with peers and customers \- Active Top Secret security clearance with the ability...clearance with the ability to obtain and maintain a TS / SCI **Desired Skills:** \- Previous experience or… more
    Lockheed Martin (10/29/25)
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  • Senior Joint Space Warfighting MS&A…

    Parsons Corporation (Colorado Springs, CO)
    SCI and Special Access Required eligibility **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for ... on warfighting impact + Support high-visibility space-based capability studies **Required Skills** : + TS / SCI w/CI Poly (Have an existing poly or be willing to… more
    Parsons Corporation (12/09/25)
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  • Senior Systems Engineer - IT

    Lockheed Martin (Littleton, CO)
    …Excellent communication and interpersonal skills\. * Ability to obtain and maintain a Top Secret \( TS \) security clearance\. **Desired Skills:** * Experience ... work on the Trusted Security Solutions \(TSS\) program to engineer Cross\-Domain Solution \(CDS\) products\. This position is for...must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You… more
    Lockheed Martin (11/12/25)
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  • Engineer V

    General Atomics (Englewood, CO)
    …Required:** 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Colorado **Clearance Level:** Top Secret ( SCI access eligible) **Pay Range Low:** ... have active TS clearance and be able to obtain and maintain TS / SCI security clearance. **US Citizenship Required?:** Yes **Experience Level:** Senior (8+… more
    General Atomics (12/23/25)
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  • Software Engineer Staff, Level 4

    Lockheed Martin (Colorado Springs, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... Citizen; Must be able to obtain and maintain a Top Secret security clearance\. This position is...management skills that enable on\-time project delivery * Active TS / SCI security clearance **Security Clearance Statement:** This… more
    Lockheed Martin (11/23/25)
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  • Senior OPIR Systems Engineer

    KBR (Aurora, CO)
    …skills to effectively lead discussions across multiple groups Clearance Requirement: + Active Top Secret / SCI security clearance with a current Polygraph ... Title: Senior OPIR Systems Engineer KBR is seeking a highly qualified OPIR...JD and four (4) years or more experience + TS / SCI Required + Technical and analytic understanding… more
    KBR (12/11/25)
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  • System Dev Engineer II, Analytics ADC

    Amazon (Denver, CO)
    …deploying, and supporting large-scale infrastructure - Current, active US Government Security Clearance of Top Secret with SCI eligibility or above Amazon is ... Developer and Kiro. We are seeking a Systems Development Engineer II who can think big and simplify solutions...must obtain and maintain a security clearance at the TS / SCI with polygraph level. Upon start, the… more
    Amazon (11/13/25)
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  • Research Science / Senior AI Machine Learning…

    CACI International (Aurora, CO)
    …with concepts and techniques associated with adversarial AI and AI/ML assurance.** **Active Top Secret / SCI clearance preferred.** - ** ** **What You ... Research Science / Senior AI Machine Learning Research Engineer Job Category: Engineering Time Type: Full time...Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of… more
    CACI International (11/25/25)
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