• Mid-Level Software Engineer

    Leidos (Aurora, CO)
    …of the Decision Advantage Solutions Business Area, is currently seeking a Mid-Level Software Engineer for the Chinook Program. The Chinook Program delivers ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security...Aurora, CO + St. Louis, MO + Tucson, AZ ** Clearance Level Required :** **Must have a** **Top… more
    Leidos (10/05/25)
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  • Software Engineer

    Kratos Defense & Security Solutions, Inc. (Colorado Springs, CO)
    …innovative solutions to our nation and global customers. Kratos is seeking a Software Engineer . The position will support dynamic, agile projects implementing ... on the design, implementation, and maintenance/troubleshooting of new and existing software solutions. The candidate must be self-motivated, be a self-learner, and… more
    Kratos Defense & Security Solutions, Inc. (09/17/25)
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  • Software Engineer

    CACI International (Denver, CO)
    Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel ... Required : Up to 10% Type of Travel: Local Anticipated...Posting End: 12/1/2025 **The Opportunity:** CACI is seeking a Software Engineer to join a highly energetic… more
    CACI International (10/23/25)
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  • Software Engineer

    Eliassen Group (Colorado Springs, CO)
    ** Software Engineer ** **Colorado Springs, CO** **Type:** Permanent **Category:** Development **Industry:** Government **Reference ID:** JN -112025-104457 **Date ... architecture modeling, and interface definition. This position may include software development, database manipulation, or Model-Based Systems Engineering Tools… more
    Eliassen Group (11/21/25)
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  • Software Engineer

    CACI International (Denver, CO)
    Software Engineer 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 10% Type of Travel: Local Anticipated...to understand requirements and provide feedback * Interface with Software and Integration Engineers to containerize, test, and deploy… more
    CACI International (10/16/25)
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  • Cleared Software Engineer Intern…

    CACI International (Denver, CO)
    Cleared Software Engineer Intern - Summer 2026 Job Category: Intern/Co-op Time Type: Part time Minimum Clearance Required to Start: TS/SCI with Polygraph ... Employee Type: Part-Time On-Call Percentage of Travel Required : None Type of Travel: None Anticipated Posting End:...End: 12/17/2025 **The Opportunity:** CACI is seeking a skilled Software Developer for our Summer 2026 Makalu internship program.… more
    CACI International (10/08/25)
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  • Staff / Sr Staff Python Software

    SciTec (Boulder, CO)
    …type. Further, US citizenship is a requirement to obtain and keep a security clearance . Applicants that do not meet these requirements will not be considered. SciTec ... has an immediate opportunity for a talented Python Software Developer in Boulder, CO, to support programs focusing...The ability to obtain and maintain a DoD security clearance + Detail oriented + Good verbal and written… more
    SciTec (08/29/25)
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  • IT Software Engineer - .Net/Web

    Nelnet (Centennial, CO)
    …they live, learn, and work. Responsible for developing enterprise wide cross-functional software solutions, working closely with IT Software Architects and IT ... work experience. **EXPERIENCE:** Minimum 3 years of experience in software development with strong skills in at least one...+ Working knowledge of the network and/or server infrastructure required to host an application on the platforms in… more
    Nelnet (11/18/25)
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  • SE/SEIT Lead - Top Secret Clearance

    Lockheed Martin (Littleton, CO)
    …"Family of Programs," we offer a wide range of innovative hardware and software products that provide mission\-critical capabilities, focusing on key areas such as ... and deployment\. This is an exciting opportunity for a seasoned SE or SEIT engineer to lead a team of talented engineers and technicians in the development and… more
    Lockheed Martin (09/24/25)
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  • Systems Administrator (TS/SCI with Poly…

    Fluor (Aurora, CO)
    …of Defense and the Intelligence Community. **Job Description** Must possess a clearance at the TS/SCI access level, and have favorably completed a government ... using a VMware backend infrastructure. Analyze and test new software and software version upgrades in test...and accurate fashion, and provide end user training where required * Manage all network hardware and equipment; security… more
    Fluor (10/29/25)
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