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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AI Software Engineer (Hybrid)
AI Software Engineer (Hybrid) Oak Ridge, TN, US, 37830 Jul 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 18, 2025
Senior Coated Particle Fuel Qualification Scientist
Senior Coated Particle Fuel Qualification Scientist Oak Ridge, TN, US, 37830 Jul 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 18, 2025
Senior R&D Staff Member - Plasma Material Interactions (PMI) Science Lead Oak Ridge, TN, US, 37830 Jul 18, 2025
AI Developer (Hybrid)
AI Developer (Hybrid) Oak Ridge, TN, US, 37830 Jul 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 18, 2025
Research Scientist, Spatial Statistics
Research Scientist, Spatial Statistics Oak Ridge, TN, US, 37830 Jul 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 18, 2025
Postdoctoral Research Associate - Plant Systems Biology & The Center for Bioenergy Innovation (CBI) Oak Ridge, TN, US, 37830 Jul 18, 2025
Radioisotope Production Technical Professional
Radioisotope Production Technical Professional Oak Ridge, TN, US, 37830 Jul 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 18, 2025
Fire Alarm Electrician
Fire Alarm Electrician Oak Ridge, TN, US, 37830 Jul 17, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 17, 2025
Senior Classified HPC Engineer
Senior Classified HPC Engineer Oak Ridge, TN, US, 37830 Jul 16, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 16, 2025
Mass Spectrometry Chemist- Associate Staff Member
Mass Spectrometry Chemist- Associate Staff Member Oak Ridge, TN, US, 37831 Jul 16, 2025 0.00 mi
Oak Ridge, TN, US, 37831 Jul 16, 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.