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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Distinguished Scientist, Artificial Intelligence and Machine Learning
Distinguished Scientist, Artificial Intelligence and Machine Learning Oak Ridge, TN, US, 37830 Oct 4, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Oct 4, 2025
Information Systems Security Officer
Information Systems Security Officer Oak Ridge, TN, US, 37830 Sep 23, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 23, 2025
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 Programs and Planning Specialist
Senior Programs and Planning Specialist Oak Ridge, TN, US, 37830 Sep 18, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 18, 2025
Data Center Manager
Data Center Manager Oak Ridge, TN, US, 37830 Sep 17, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 17, 2025
Machine Learning Research Engineer (Hybrid Eligible)
Machine Learning Research Engineer (Hybrid Eligible) Oak Ridge, TN, US, 37830 Sep 17, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 17, 2025
Group Leader, IC Classified Compute (IC3)
Group Leader, IC Classified Compute (IC3) Oak Ridge, TN, US, 37830 Sep 17, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 17, 2025
Uncrewed Systems Technical Specialist
Uncrewed Systems Technical Specialist Oak Ridge, TN, US, 37830 Sep 15, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 15, 2025
HPC Cyber Security Engineer
HPC Cyber Security Engineer Oak Ridge, TN, US, 37830 Sep 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 12, 2025
HPC Cyber Security Engineer
HPC Cyber Security Engineer Oak Ridge, TN, US, 37830 Sep 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 12, 2025
Senior Data Manager
Senior Data Manager Oak Ridge, TN, US, 37830 Sep 11, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 11, 2025
Senior Artificial Intelligence and Machine Learning Research Scientist
Senior Artificial Intelligence and Machine Learning Research Scientist Oak Ridge, TN, US, 37830 Sep 8, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Sep 8, 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.