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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Kubernetes Platform Engineer, Task and Technical Lead
Kubernetes Platform Engineer, Task and Technical Lead Oak Ridge, TN, US, 37830 Dec 21, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 21, 2025
Senior Classified HPC Engineer
Senior Classified HPC Engineer Oak Ridge, TN, US, 37830 Dec 21, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 21, 2025
Kubernetes Platform Engineer
Kubernetes Platform Engineer Oak Ridge, TN, US, 37830 Dec 21, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 21, 2025
Staff Member, Plasma-based Enrichment Scientist
Staff Member, Plasma-based Enrichment Scientist Oak Ridge, TN, US, 37830 Dec 20, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 20, 2025
Associate Plasma-based Enrichment Scientist
Associate Plasma-based Enrichment Scientist Oak Ridge, TN, US, 37830 Dec 20, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 20, 2025
Postdoctoral Research Associate - AI-Driven Analysis for Magnetic Quantum Materials Oak Ridge, TN, US, 37830 Dec 20, 2025
HPC Cyber Security Engineer
HPC Cyber Security Engineer Oak Ridge, TN, US, 37830 Dec 19, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 19, 2025
HPC Cyber Security Engineer
HPC Cyber Security Engineer Oak Ridge, TN, US, 37830 Dec 19, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 19, 2025
Research Scientist, Federated Learning (Hybrid Eligible)
Research Scientist, Federated Learning (Hybrid Eligible) Oak Ridge, TN, US, 37830 Dec 19, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 19, 2025
Postdoctoral Research Associate - Federated Learning
Postdoctoral Research Associate - Federated Learning Oak Ridge, TN, US, 37830 Dec 19, 2025 0.00 mi
Oak Ridge, TN, US, 37830 Dec 19, 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.