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.

 

Learn More

 

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.

Watch jobs in this category

Title Location Date Sort ascending
Reset
Distinguished Scientist, Artificial Intelligence and Machine Learning
Distinguished Scientist, Artificial Intelligence and Machine Learning Oak Ridge, TN, US, 37830 Jul 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 12, 2025
Grid Sensors R&D Engineer
Grid Sensors R&D Engineer Oak Ridge, TN, US, 37830 Jul 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 12, 2025
Senior Artificial Intelligence and Machine Learning Research Scientist
Senior Artificial Intelligence and Machine Learning Research Scientist Oak Ridge, TN, US, 37830 Jul 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 12, 2025
Payroll Tax Analyst
Payroll Tax Analyst Oak Ridge, TN, US, 37830 Jul 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 12, 2025
Electrical Engineer
Electrical Engineer Oak Ridge, TN, US, 37830 Jul 12, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 12, 2025
External Dosimetry Program Technical Specialist
External Dosimetry Program Technical Specialist Oak Ridge, TN, US, 37830 Jul 11, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 11, 2025
Computational Reactor Physics and Cross Section Methods Associate R&D Staff Member Oak Ridge, TN, US, 37830 Jul 11, 2025
Radiochemist- R&D Associate
Radiochemist- R&D Associate Oak Ridge, TN, US, 37831 Jul 11, 2025 0.00 mi
Oak Ridge, TN, US, 37831 Jul 11, 2025
Radiochemist - Technical Associate Staff Member
Radiochemist - Technical Associate Staff Member Oak Ridge, TN, US, 37830 Jul 11, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 11, 2025
Isotope Production Analytical Chemist- Technical Professional
Isotope Production Analytical Chemist- Technical Professional Oak Ridge, TN, US, 37830 Jul 11, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Jul 11, 2025

JOIN OUR TALENT NETWORK

Enter your email address to tell us about yourself. We will keep you informed about job opportunities and events that match your interests.

Already a member?

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.