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.

The 10 most recent jobs posted by Oak Ridge National Laboratory are listed below for your convenience.
Watch jobs in this category
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Postdoctoral Research Associate - Geothermal Energy Techno-Economic Analysis for Roadmap Extension
Knoxville, TN, US, 37932
Jul 8, 2025
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Postdoctoral Research Associate - Redox Flow Batteries and Membranes
Oak Ridge, TN, US, 37830
Jul 8, 2025
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Senior Research Scientist for Industrial Process Heating
Knoxville, TN, US, 37932
Jul 8, 2025
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Postdoc Research Associate - Quantum Materials Synthesis and Characterization, AI-Enabled Automation
Oak Ridge, TN, US, 37830
Jul 7, 2025
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Postdoctoral Research Associate - Part-Scale Simulations for Advanced Manufacturing
Oak Ridge, TN, US, 37830
Jul 7, 2025
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Postdoctoral Research Associate - Energy materials synthesis and exploration with neutron scattering
Oak Ridge, TN, US, 37830
Jul 7, 2025
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