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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FIE & RDE IT Group Leader
FIE & RDE IT Group Leader Oak Ridge, TN, US, 37830 Aug 30, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 30, 2025
Group Leader, Special Security Office
Group Leader, Special Security Office Oak Ridge, TN, US, 37830 Aug 30, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 30, 2025
Senior HPC Engineer - Classified Environment
Senior HPC Engineer - Classified Environment Oak Ridge, TN, US, 37830 Aug 30, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 30, 2025
Senior Consultant - Storage Infrastructure and Systems Engineering
Senior Consultant - Storage Infrastructure and Systems Engineering Oak Ridge, TN, US, 37830 Aug 30, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 30, 2025
Senior Network Administrator
Senior Network Administrator Oak Ridge, TN, US, 37830 Aug 27, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 27, 2025
Nonproliferation Professional (Casual Part-time)
Nonproliferation Professional (Casual Part-time) Oak Ridge, TN, US, 37830 Aug 27, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 27, 2025
Alternate Special Security Officer - Technical and Physical Security
Alternate Special Security Officer - Technical and Physical Security Oak Ridge, TN, US, 37830 Aug 27, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 27, 2025
Communications Engineer and Signals Analyst
Communications Engineer and Signals Analyst Oak Ridge, TN, US, 37830 Aug 26, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 26, 2025
DoD SkillBridge Military Intern
DoD SkillBridge Military Intern Oak Ridge, TN, US, 37830 Aug 23, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 23, 2025
Computer Scientist
Computer Scientist Oak Ridge, TN, US, 37830 Aug 19, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 19, 2025
Senior Artificial Intelligence and Machine Learning Research Scientist
Senior Artificial Intelligence and Machine Learning Research Scientist Oak Ridge, TN, US, 37830 Aug 10, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 10, 2025
Enterprise IT Program Manager
Enterprise IT Program Manager Oak Ridge, TN, US, 37830 Aug 4, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Aug 4, 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.