• Principal Modeling & Simulation Operations…

    RTX Corporation (El Segundo, CA)
    …Modeling & Simulation experience in the defense industry **Qualifications We Prefer** + Active Top Secret clearance + Advanced degree in STEM (and can be ... US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our… more
    RTX Corporation (11/13/25)
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  • Sr Principal Software Developer

    Oracle (Reston, VA)
    …root cause analysis for critical issues. **Capacity and Performance Management** : Architect and implement systems to monitor, predict, and optimize ... **Job Description** ** Architect Operational Processes** : Design and implement scalable and automated operational processes for incident management, change… more
    Oracle (12/31/25)
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  • Senior/ Principal Software Engineer…

    Sandia National Laboratories (Livermore, CA)
    …mission partners. + Active DOE Q/SCI security clearance or equivalent DOD Top Secret /SCI security clearance. About Our Team: The Special Programs ... Technology staff, management, and customers to implement solutions that address requirements. Architect software systems , develop code, write unit tests, and… more
    Sandia National Laboratories (12/16/25)
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  • Systems Engineer, Staff Principal

    BigBear.ai (Columbia, MD)
    …advanced IT systems . You'll work independently and collaboratively to: + Architect and enhance complex IT systems that support national security missions. ... environments and is passionate about building, maintaining, and optimizing mission-critical systems . If you're ready to lead innovative projects, shape future… more
    BigBear.ai (11/27/25)
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  • Principal Mbse SME

    Belcan (Fairborn, OH)
    …361216 Category: -Corporate Description: Belcan Government Solutions (BGS) is seeking a Principal Model Based Systems Engineering (MBSE) Subject Matter Expert ... (SME). As a Principal Model Based Systems Engineer, you will...Citizenship required Desired Qualifications: * OCSMP Certification * Active Secret Security Clearance or ability to obtain TS more
    Belcan (11/13/25)
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  • Sr. Principal Digital Engineer (GPS Navwar)

    Northrop Grumman (Dayton, OH)
    …and RTOS environments + Experience with GNU Radio or software-defined radios + Active Top Secret security clearance + Proven skills to include: team leadership, ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Interim Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our… more
    Northrop Grumman (11/13/25)
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  • Principal Software Development Engineer…

    Oracle (Montpelier, VT)
    …Government Defense Intelligence (GDI) division. **Responsibilities** **Responsibilities** Our Principal engineers are technical leaders in our government clouds. ... influence the profitability and scalability of OCI's government cloud solutions. + ** Architect and Design** : Lead the design and architecture of microservices that… more
    Oracle (12/20/25)
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  • Optical Architecture and Analysis Principal

    Lockheed Martin (Sunnyvale, CA)
    …The successful candidate will demonstrate mastery of optical design of complex systems , error budgeting, and analysis of operational data collected from those ... systems \. You will posses a breadth of knowledge required to architect complex optical payloads to meet mission\-level requirements\. You will lead… more
    Lockheed Martin (11/01/25)
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  • Principal Software Engineer - 25k Sign…

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Software Enginee** r in our **National Security Sector's (NSS) Cyber & Analytics ... to support a high-stakes, mission-critical program. In this role, you'll help architect , develop, and integrate software solutions that shape national security and… more
    Leidos (12/13/25)
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  • Principal Investigator/Lead Research…

    GovCIO (Albany, NY)
    **Overview** GovCIO is currently hiring for a Principal Investigator/ Research Scientist. This position will be located in Rome,NY and will an onsite position. ... Degree (or commensurate experience) Required Skills and Experience: + Clearance Required: TS /SCI + DoDD 8140 IASAE Level I/II: (CASP+, CISSP, or Certified Secure… more
    GovCIO (10/24/25)
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