• Software Engineer Level 3 or 4

    Northrop Grumman (Aurora, CO)
    …may be considered in lieu of a degree. + **Must have current Top Secret/SCI security clearance at time of application.** + Must have an established understanding ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our… more
    Northrop Grumman (09/20/25)
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  • Software Engineer - UX Full Time…

    Lockheed Martin (Colorado Springs, CO)
    …Certified Solutions Architect - Professional, IAAP CPACC \(accessibility\), or CISSP \( security \)\. ** Security Clearance Statement:** This position requires ... a seamless AWS‑based data‑lake backend\. We are seeking UX Software Engineers who can translate complex sensor and analytics...a government security clearance , you must be a US Citizen for consideration\.… more
    Lockheed Martin (11/12/25)
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  • Junior Software Engineer - TS/SCI w/…

    Parsons Corporation (Denver, CO)
    …**Job Description:** Blue Ridge Envisioneering is seeking qualified candidates to fill a ** Software Engineer ** position at our Denver, CO location. Blue Ridge ... Envisioneering, a Parsons Company, is currently searching for full-time **Jr.** ** Software Engineer ** that participate in the design, development, and… more
    Parsons Corporation (09/24/25)
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  • Automated Test Framework Software

    Leidos (Aurora, CO)
    …**Leidos** has a new and exciting opportunity for an **Automated Test Framework Software Engineer ** in our **National Security Sector's (NSS) Cyber ... difference in National Security !** **Job Summary:** The **Automated Test Framework Software Engineer ** will support the framework of automated tests on… more
    Leidos (09/27/25)
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  • Front End Software Engineer

    CACI International (Denver, CO)
    Front End Software Engineer (Mid-Level) Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee ... Continental US Anticipated Posting End: 12/29/2025 We are seeking a dedicated Front End Software Engineer (Mid-Level) to support our Makalu contract. If you are… more
    CACI International (11/18/25)
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  • Sr. Software Engineer

    Leidos (Aurora, CO)
    …Decision Advantage Solutions Business Area, is currently seeking a highly motivated Sr. 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 operations,… more
    Leidos (10/05/25)
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  • Cleared Software Engineer

    General Atomics (Aurora, CO)
    …in mentoring junior engineers and shaping technical discussions within your team. + Engineer high-quality software : + Take ownership of features or services from ... General Atomics Integrated Intelligence Inc. (GA-Intelligence) develops cutting-edge software solutions that transform raw data into actionable intelligence. We… more
    General Atomics (10/03/25)
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  • Part-Time Sr. Software Engineer

    Lockheed Martin (Littleton, CO)
    …experience in embedded software \-C\+\+ Must have a TS/SCI with poly security clearance \. ** Security Clearance Statement:** This position requires ... career that's built for you\. Plans, conducts, and coordinates software development activities\. Designs, develops, documents, tests, and debugs...a government security clearance , you must be a US Citizen for consideration\.… more
    Lockheed Martin (11/14/25)
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  • Senior CNO Software Engineer

    ManTech (Aurora, CO)
    **MANTECH** seeks a highly experienced and mission-focused **Senior Software Engineer ** to join our CNO team in **Aurora, CO.** As a Senior Software ... limited to:** + Design and develop new hardware- or software -based CNO capabilities + Independently contribute to the design,... Requirements:** + Must have a current/active TS/SCI w/Polygraph security clearance and be willing and able… more
    ManTech (10/29/25)
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  • Summer Intern - IT Software Engineer

    Nelnet (Centennial, CO)
    …company, is hiring eager students to join its Summer 2026 IT Internship program. Software Engineer Interns Software Engineer Interns will enhance ... requires that any applicant for this position must complete United States Government security clearance . Effective June 1, 2018, ED has informed Nelnet that… more
    Nelnet (09/12/25)
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