National Security Jobs

National Security

Protecting U.S. citizens through discovery and innovation

The National Security Sciences Directorate leads scientific and technological breakthroughs to confront some of the nation’s most difficult security challenges. We develop applications needed for the security of our nation today and target our vision on how these challenges may manifest themselves in a decade or more.

Our research and development focuses on cybersecurity and cyber physical resiliency, data analytics, geospatial science and technology, nuclear nonproliferation, and high-performance computing for sensitive national security missions. We also enhance ORNL contributions to national security challenges by working closely with leading researchers at the lab in areas such as nuclear and chemical sciences and engineering, applied materials, advanced manufacturing, biosecurity, transportation, and computing.

 

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National Security

Protecting U.S. citizens through discovery and innovation

ORNL’s strengths in advanced materials, nuclear science, and supercomputing are addressing complex national security challenges in the areas of nuclear nonproliferation, national defense, homeland protection, and intelligence.

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DoD SkillBridge Military Intern
DoD SkillBridge Military Intern Oak Ridge, TN, US, 37830 Sep 21, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 21, 2025
Senior Control System Software R&D Engineer
Senior Control System Software R&D Engineer Oak Ridge, TN, US, 37830 Sep 21, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 21, 2025
Research Associate - Atom Probe Tomography
Research Associate - Atom Probe Tomography Oak Ridge, TN, US, 37830 Sep 20, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 20, 2025
Senior Research Staff - Atom Probe Tomography
Senior Research Staff - Atom Probe Tomography Oak Ridge, TN, US, 37830 Sep 20, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 20, 2025
Research Staff - Atom Probe Tomography
Research Staff - Atom Probe Tomography Oak Ridge, TN, US, 37830 Sep 20, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 20, 2025
Senior Project Manager
Senior Project Manager Oak Ridge, TN, US, 37830 Sep 20, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 20, 2025
Postdoctoral Research Associate
Postdoctoral Research Associate Oak Ridge, TN, US, 37830 Sep 19, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 19, 2025
Senior Project Manager and Group Leader
Senior Project Manager and Group Leader Oak Ridge, TN, US, 37830 Sep 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 18, 2025
Ethics Officer
Ethics Officer Oak Ridge, TN, US, 37830 Sep 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 18, 2025
Postdoctoral Research Associate - AI-driven Coastal Modeling
Postdoctoral Research Associate - AI-driven Coastal Modeling Oak Ridge, TN, US, 37830 Sep 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 18, 2025

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Oak Ridge National Laboratory is managed by UT-Battelle for the Department of Energy.

ORNL is an equal opportunity employer; learn more. All qualified candidates, including individuals with disabilities and protected veterans, are encouraged to apply. ORNL is an E-Verify employer; learn more. If you have difficulty using the online application system or need accommodation to apply due to a disability, please email: ORNLRecruiting@ornl.gov.