• Principal Software Engineer

    KBR (Colorado Springs, CO)
    Title: Principal Software Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... - protecting our national security. KBR is seeking a Principal Software Engineer to work...in consideration of internal parity. Qualifications: Required: + Clearance: TS /SCI with a Polygraph + Education: Undergraduate degree in… more
    KBR (01/08/26)
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  • Space Systems Principal Software

    BAE Systems (Merrimack, NH)
    …about software defined radios? We need your talent, motivation, and vision as a Principal Software Engineer in our Space Systems program area at our ... **Job Description** Do you have a Top Secret security clearance and experience...based on position level and/or job specifics. **Space Systems Principal Software Engineer - Sign-on… more
    BAE Systems (12/19/25)
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  • Principal Software Engineer

    RTX Corporation (Cedar Rapids, IA)
    …global market. Collins Aerospace Resilient Connectivity Products (RCP) Engineering seeks a ** Principal Software Engineer ** to join the Platform Services ... only US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret Collins Aerospace, an RTX company, is a leader in… more
    RTX Corporation (12/13/25)
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  • Principal Software Engineer

    SAIC (Honolulu, HI)
    **Description** SAIC is seeking a ** Principal Software Engineer ** who...Must be a US Citizen. + Must have a Secret clearance to start. + Must be able to ... will be a systems administrator providing on-site hardware and software support, engineering and technical services specialized interface to...obtain a TS /SCI after start. **DESIRED SKILLS:** + Red Hat Certified… more
    SAIC (11/28/25)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Software Engineer ** in our **National Security Sector's (NSS) Cyber & ... a difference in National Security!** **Job Description** As a Software Engineer on this program, you will...experience. + To be considered must have an active TS /SCI with polygraph security clearance **Preferred Qualifications:** + Experience… more
    Leidos (11/19/25)
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  • Principal Software Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal ** ** Software Engineer ** in our **National Security Sector's (NSS) Cyber & ... **Join us and make a difference in National Security!** **Job Description** A Software Engineer on this program provides Agile development and operations and… more
    Leidos (11/07/25)
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  • Sr Principal Software

    Northrop Grumman (Melbourne, FL)
    …history, they're making history. Northrop Grumman Aeronautics Systems Sector is searching for **Sr Principal Software Engineer ** to join the Joint All Domain ... of the box" thinker. **Essential Functions:** + Participate in software development in support of Research and Advanced Design...as determined by the company **Preferred Qualifications:** + Active Top Secret clearance + Active SAP +… more
    Northrop Grumman (12/18/25)
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  • Principal Software Engineer

    Northrop Grumman (Chantilly, VA)
    …Are you interested in defining possible? **Northrop Grumman Mission Systems** is seeking a ** Principal Software Engineer (T03)** to join our team! This ... practices + Demonstrated effective communication skills **Preferred Qualifications:** + Active DoD Top Secret / SCI security clearance + Experience developing… more
    Northrop Grumman (12/23/25)
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  • Principal /Sr. Principal

    Northrop Grumman (Colorado Springs, CO)
    …not only part of history, they're making history. Northrop Grumman is seeking a Sr Principal Software Engineer to work on-site at Schriever SFB, near ... for all NOPS (NRO Operations Squadron) missions. The FROST Software team works in a state-of-the-art dynamic environment to...on-site at Schriever SFB, near Colorado Springs, CO** + ** TS /SCI CI poly -** Open to candidates without an… more
    Northrop Grumman (12/09/25)
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  • Principal Software Engineer

    Applied Research Solutions (Bedford, MA)
    **Description** Applied Research Solutions is seeking a full-time Principal Software Engineer for Hanscom AFB. This role will support the Command, Control, ... Qualifications_** **Clearance:** Must have and be able to maintain a Top - Secret Level Clearance with current SCI eligibility **_Preferred Qualifications_**… more
    Applied Research Solutions (01/08/26)
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