• National Renewable Energy Laboratory (Golden, CO)
    …programming and architecture abilities with various computer software programs and information systems. Network Engineer III Relevant Bachelor's Degree and 5 ... Advanced programming, design and analysis abilities with various computer software programs and information systems. Must meet...obtain and maintain a DOE security clearance at the Q/ TS / SCI level. A polygraph may be required.… more
    DirectEmployers Association (11/25/25)
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  • Software Engineer 3/4 (Active…

    Northrop Grumman (Aurora, CO)
    …An additional 4 years of experience can be considered in lieu of degree + **Active Top Secret / SCI security clearance required at time of application with a ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...You'll get to Do:** We are looking for a Software Engineer experienced in Java (as your… more
    Northrop Grumman (11/11/25)
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  • Algorithms Software Engineer - Level…

    Northrop Grumman (Boulder, CO)
    …part of history, they're making history. Northrop Grumman Space Systems is seeking an Algorithms Software Engineer - Level 2 or 3 with Linux environment and ... 25 miles from downtown Denver. **Position Overview:** As a Software Engineer , you will be responsible for...+ A current active in-scope US Government DoD issued Top Secret security clearance. + Strong statistical… more
    Northrop Grumman (12/04/25)
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  • Algorithms Software Engineer - Level…

    Northrop Grumman (Boulder, CO)
    …Northrop Grumman Space Systems has an exciting career opportunity for an experienced Algorithms Software Engineer - Level 3 or 4 with Linux environment and ... **Position Overview:** As a Principal / Senior Principal Algorithms Software Engineer on the BOA/ESL Team, you...+ A current active in-scope US Government DoD issued Top Secret security clearance. + Strong statistical… more
    Northrop Grumman (09/30/25)
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  • (DoD SkillBridge) Software Engineer

    Northrop Grumman (Aurora, CO)
    …Counterintelligence Polygraph (CI-Poly) **Offers are contingent upon receiving the Top Secret ( TS ) / SCI clearance** **Preferred Qualifications:** It is ... You'll get to Do:** We are looking for a Software Engineer experienced in Python (as your...developing, and troubleshooting in Java or Python + **Current Top Secret / SCI security clearance required… more
    Northrop Grumman (12/12/25)
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  • Software Engineer Level 2 or 3

    Northrop Grumman (Aurora, CO)
    …additional 4 years of experience can be considered in lieu of degree. + **Active Top Secret / SCI security clearance required at time of application** + ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...of our mission! We are looking for an experienced software engineer (level 2) or a principal… more
    Northrop Grumman (11/29/25)
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  • Software Engineer Level 2 or 3

    Northrop Grumman (Aurora, CO)
    …additional 4 years of experience can be considered in lieu of degree. + **Active Top Secret / SCI security clearance required at time of application** + ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...Northrop Grumman Space Systems (NGSP) seeks to fill a ** Software Engineer or a Principal** ** Software more
    Northrop Grumman (09/20/25)
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  • Software Engineer Level 3 or 4

    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, our ... Grumman Space Systems (NGSP) seeks to fill a **Principal** ** Software Engineer (Level 3) or a Sr....considered in lieu of degree. + **Must have active TS / SCI clearance at time of application** +… more
    Northrop Grumman (10/15/25)
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  • Software Engineer Level 5

    Northrop Grumman (Aurora, CO)
    …lieu of degree. + **Requires an active Top - Secret clearance with Sensitive Compartmented Information ( SCI ) eligibility at time of application** ... making history. Northrop Grumman's Space Sector is seeking a Software Engineer - Level 5 to join...strong background in JAVA development, and hold an active Top Secret / SCI security clearance. You… more
    Northrop Grumman (11/12/25)
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  • Sr. Software Engineer TS

    Leidos (Aurora, CO)
    **Description** Leidos has an exciting opportunity for a Sr. Software Engineer ! *Must have an active TS / SCI Polygraph up front. No exceptions.* You will ... perform software development lifecycle (SDLC) activities as both an individual...as both an individual and a member of our top -notch agile development team building a large complex enterprise… more
    Leidos (12/10/25)
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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 & Analytics ... make a 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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  • Software Engineer

    Lockheed Martin (Aurora, CO)
    …security and prosperity\. **THE WORK** Lockheed Martin is seeking a talented Software Engineer with a TS / SCI clearance to work from either our Littleton, ... Lockheed Martin Space are seeking a full\-time Early Career Software Engineer for the Ground Software...must be a US Citizen for consideration\. **Clearance Level:** TS / SCI w/Poly **Other Important Information more
    Lockheed Martin (12/04/25)
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  • Senior Software Engineer

    DCCA (Aurora, CO)
    …competitive compensation and benefits package. Visit our website at: www.dcca.com Senior Software Engineer Candidate must have a TS / SCI with Poly to be ... Senior Software Engineer Location Aurora, CO Job...Senior Software Engineer Location Aurora, CO Job Code 1528 #...providing our clients with unrivaled services starts with retaining top talent, something we're able to do through our… more
    DCCA (11/21/25)
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  • Software Engineer Level 3 or 4

    Northrop Grumman (Aurora, CO)
    …may be considered in lieu of degree. + **Candidate must have a current/active Top Secret / SCI security clearance** **_at time of application_** **to be ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the...you join our team as a Principal (level 3) Software Engineer or Sr. Principal (level 4)… more
    Northrop Grumman (10/24/25)
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  • Software Engineer Stf

    Lockheed Martin (Littleton, CO)
    … design practices * Experience with computationally complex problems * Experience with Microsoft software products * Active Top Secret Clearance required for ... Processing team is seeking a highly skilled and motivated Software Engineer , Stf to join our development...must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You… more
    Lockheed Martin (12/11/25)
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  • Principal Signals Software Engineer

    RTX Corporation (Aurora, CO)
    …systems team. We are currently looking for a highly skilled and motivated Signals Software Engineer with a focus on radio frequencies, Fourier, and digital ... citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon,...prior relevant experience unless. + Experience as a Signals Software Engineer (SSWE) or equivalent on a… more
    RTX Corporation (10/13/25)
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  • Software Engineer Lead - Level 4

    Northrop Grumman (Aurora, CO)
    …**Requires an** **active** **DoD Top - Secret ( TS ) clearance with Sensitive Compartmented Information ( SCI ) eligibility, at time of ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of...engineering fundamentals **Preferred Qualifications:** + STEM degree + Active TS with an active/current SCI [ TS more
    Northrop Grumman (12/04/25)
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  • Lead Software Engineer Level 4

    Northrop Grumman (Aurora, CO)
    …+ Requires an **active** DoD Top - Secret ( TS ) clearance with Sensitive Compartmented Information ( SCI ) eligibility **at time of application** ... RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of...engineering fundamentals **Preferred Qualifications:** + STEM degree + Active TS with an active/current SCI [ TS more
    Northrop Grumman (10/24/25)
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  • Senior Software Engineer 25k Sign…

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Software Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics ... Leidos is seeking a driven and experienced Full Stack Software Engineer to support a high-stakes, mission-critical...as Python + **Clearance Requirement:** Must have an active TS / SCI clearance with Polygraph **Desired Qualifications** +… more
    Leidos (12/03/25)
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  • Software Engineer TS

    CACI International (Denver, CO)
    Software Engineer TS / SCI ...are critical to our success. + Culture of sharing information amongst teammates and management team. + Be dedicated to ... Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage...Opportunity:** Are you ready to apply your expertise in software development to help shape the future of mission-critical… more
    CACI International (12/09/25)
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