• Principal Modeling & Simulation Operations…

    RTX Corporation (El Segundo, CA)
    …and/or Modeling & Simulation experience in the defense industry **Qualifications We Prefer** + Active Top Secret clearance + Advanced degree in STEM (and ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (11/13/25)
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  • Machine Learning Engineer

    William C Brown Inc (Springfield, VA)
    …Required Location Springfield Full-Time/Part-Time Full-Time Exempt/Non-Exempt Exempt Security Clearance Requirements Active TS / SCI Clearance. This position is ... safe and tomorrow is smarter. Our work depends on TS /SCI cleared Machine Learning Engineer joining our.... Demonstrated professional or academic experience with version control systems such as Gitlab. . Demonstrated experience leveraging CUDA… more
    William C Brown Inc (12/15/25)
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  • Mission Protection Systems Engineer

    KBR (Las Cruces, NM)
    Title: Mission Protection Systems Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... our national security. KBR is seeking a Mission Protection Systems Engineer in Las Cruces, NM to...Requirements: Minimal + Working Hours: Standard QUALIFICATIONS Required: + Active TS /SCI with polygraph required. + Bachelor's… more
    KBR (12/19/25)
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  • Principal Endpoint Security Systems

    Leidos (Bethesda, MD)
    …**Leidos** has a new and exciting opportunity a **Principal Endpoint Security Systems Engineer ** in our **National Security Sector's (NSS) Cyber & ... Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security...a degree. + **To be considered must have an active TS /SCI with polygraph security clearance** **Preferred… more
    Leidos (11/28/25)
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  • Flight Safety Systems Engineer

    SAIC (Chantilly, VA)
    …or assist in actions to decommission the spacecraft. **Qualifications** + Must possess an active TS /SCI clearance with Polygraph. + BS or MS degree in ... from the SAIC headquarters, our Chantilly, VA team supports systems development, targeting & intelligence analysis, systems ...integration and more. This position is for a System Engineer for a large contract supporting a cutting-edge and… more
    SAIC (11/14/25)
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  • Software Reverse Engineer

    Leidos (Columbia, MD)
    …for mission-critical scenarios.** **Required Qualifications:** + **A US citizen with an active Top Secret security clearance and SCI eligibility.** ... **Description** **Software Reverse Engineer - Job Description** **Who We Are** **Kudu...job where you get to poke holes in real systems and look for things that make you stop… more
    Leidos (01/09/26)
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  • Staff Engineer RF Microwave Design

    Northrop Grumman (Annapolis Junction, MD)
    …requirements, and schematic drawings + Must be willing to obtain and maintain an active Top Secret /SCI with Poly Security Clearance + US Citizenship ... development of computer architectures, processing/memory subsystems, and large-scale high-performance computing systems . MDA is seeking a **Staff Engineer RF… more
    Northrop Grumman (01/03/26)
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  • Staff Engineer RF Microwave Design

    Northrop Grumman (Linthicum Heights, MD)
    …mechanical requirements, and schematic drawings + Must be willing to obtain and maintain an active US Top Secret /SCI with Poly Security Clearance + US ... development of computer architectures, processing/memory subsystems, and large-scale high-performance computing systems . MDA is seeking a **Staff Engineer RF… more
    Northrop Grumman (01/01/26)
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  • Loads and Dynamics Structural Engineer

    Lockheed Martin (Huntsville, AL)
    …software, NX Simulation, NASTRAN, LS\-Dyna, Wave6, or equivalent **Desired Skills:** * Active Secret Clearance * Experience evaluating designs using rigid body ... As we enter a new era of Strategic Weapon Systems , Lockheed Martin is a pioneer, partner, innovator and...must be a US Citizen for consideration\. **Clearance Level:** Top Secret **Other Important Information You Should… more
    Lockheed Martin (12/06/25)
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  • Kubernetes Engineer

    Leidos (Colorado Springs, CO)
    …may be accepted in lieu of degree. + US Citizen and Possession of a current Active DoD Top Secret Clearance with SCI eligibility. + Minimum 8 years ... of professional experience as a Kubernetes Engineer , successfully designing and building distributed systems for mid to large enterprises, including two years of… more
    Leidos (11/21/25)
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