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Oak Ridge National Laboratory is the Department of Energy’s largest science and energy laboratory with over 5,800 staff from more than 60 countries, 3,000 guest researchers, and a budget of approximately $1.4 billion. The Lab supports the DOE's mission by providing solutions to strengthen the nation’s leadership in key areas of science; increase the availability of clean, abundant energy; restore and protect the environment; and contribute to national security. Career opportunities include internships, postgrads, postmasters, postdoc appointments, distinguished fellowships, business and technical professionals, full-time research staff, and joint faculty appointments. ORNL provides the opportunity to make an important national and even worldly impact. With over 5,800 staff, almost 500 interns every summer, the world’s best neutron source, one of the fastest supercomputers, and over a dozen world-class facilities, the possibilities are endless.
Jan 11, 2026
ORNL TN, USA
Requisition Id 15217  Overview: Oak Ridge National Laboratory (ORNL), the U.S. Department of Energy’s largest multi-program science and energy laboratory, has an extraordinary 80-year history of tackling the nation’s most challenging scientific problems. With a dedicated staff of over 6,000 people, ORNL advances breakthrough research in energy, environment, computing, and national security. The Multiscale Biomedical Systems Group within the Advanced Computing in Health (ACH) Section of the Computational Sciences and Engineering Division (CSED) is seeking two Postdoctoral Research Associates to join our growing research team. These positions focus on developing next-generation AI and high-performance computing (HPC) methods for computational imaging and spatiotemporal data analysis. We are especially interested in candidates with strong technical expertise in AI architecture design (e.g., Vision Transformers, foundation models, and federated learning), scalable...
Jan 11, 2026
ORNL TN, USA
Requisition Id 14972  Overview:  The Centrifuge Science (CS) Section within the Enrichment Science and Engineering Division (ESED) at Oak Ridge National Laboratory (ORNL) is seeking a Senior Electric Motor Researcher for the Mechanical Systems Modeling (MSM) Group . The Senior Electric Motor Researcher will perform analysis on electric motors and motor drive systems for gas centrifuges. In addition, the Senior Electric Motor Researcher will guide experimental testing and validation of electric motors and electromagnetics.   Purpose: ESED serves the nation in two critical areas: advancing enrichment technologies and exploring enriched stable isotope production and applications. The division leverages an elite staff of scientists and engineers with the world-leading capabilities of ORNL to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments.   ESED is the...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15442    Overview: Oak Ridge National Laboratory is the largest US Department of Energy (DOE) science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security. The Enrichment Systems Engineering Section is seeking a Senior Machine Design Engineer who will support the Enrichment Science and Engineering Division (ESED) within the Isotope Science and Engineering Directorate (ISED) at Oak Ridge National Laboratory (ORNL). ESED serves the nation in two critical areas: advancing enrichment technologies and exploring stable isotope production and applications. The division leverages an elite staff of scientists and engineers with the world-leading capabilities of ORNL to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments. ESED is the national steward for the research, development, and demonstration of...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15724  Overview:     Oak Ridge National Laboratory is the largest US Department of Energy science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security. The Data Science & Visualization Group at Oak Ridge National Laboratory (ORNL) advances AI/ML research and delivers applied solutions that support high-impact national security missions.    We are seeking a technical contributor in AI/ML research to build models and pipelines, design and implement evaluations and benchmarks, and disseminate results through publications and briefings. You will partner with multidisciplinary researchers across ORNL and external collaborators to enable data-driven decision-making in a variety of contexts . This position resides in the Data Science & Visualization Group in the Advanced Intelligent Systems Section, Cyber Resillience and Intelligence Division, National...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15714    Overview: We are seeking an Electrical, Instrumentation and Controls Engineer to join the Systems Engineering (SE), Design and Fabrication Group within the  Research Reactors Division  (RRD) at  Oak Ridge National Lab  (ORNL).   The Systems Engineering (SE), Design and Fabrication Group is responsible for the  High Flux Isotope Reactor  (HFIR) configuration management program. This group also provides technical support to operations, maintenance and performs systems analysis.   As the Electrical, Instrumentation, and Controls Engineer, you will design and modify reactor instrumentation loops and control systems, provide technical support for I&C maintenance activities, lead field work, and analyze reactor system performance. This position will function as a cognizant system engineer for the assigned HFIR plant system in the HFIR System Engineering Program and DOE O 420.1 for the hazard category 1 nuclear facility and shall be...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15469      Overview:   We are hiring a Senior Linux HPC Storage Engineer to design, operate and maintain clusters, servers, and workstations storage supporting services where science happens at ORNL! This position resides in the Emerging Technologies & Computing team in the Research Computing group in the Information Technology Services Directorate at  Oak Ridge National Laboratory (ORNL).     The Emerging Technology Computational Group facilitates ORNL goals through HPC systems engineering, integration, and support for the research community at ORNL. By providing design, deployment, optimization, monitoring, and tooling support across multiple clustered infrastructures, we facilitate Lab-wide R&D projects. Our HPC clusters range in scope from just a handful of nodes to over fifty-thousand cores.   We partner with ORNL research organizations to enable research excellence and delivery. We work with other clustered computing and...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15670    ­­Overview:    We’re hiring an AI Developer having AI/ML development and deployment skills! The position and its focus are to design, develop and move to production AI/ML tools and analytics that enhance and evolve business operations and scientific decision-making capability and related activities at ORNL.Qualified applicants will have a solid foundation of Generative AI and Machine Learning skills. This position resides in the AI Operations Program office within the Application Development Division of the Information Technology Services Directorate. Our AI/ML models are heavily centered on Microsoft Azure and related AI cloud technologies with High Performance Computing (HPC) for on premise AI environments and Azure, AWS, and GCP for off premise environments.   Major Duties/Responsibilities:  Development and support of models utilizing AI/ML and Microsoft Azure related Power apps, including CoPilot Studio. Collaboration with...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15730    ­­Overview:   The Center for Nanophase Materials Sciences (CNMS) is seeking a Research & Development Associate Staff Scientist to support research directed towards developing novel AI agents that can be implemented on atomic scale microscopy platforms such as scanning tunneling microscopy (STM) and scanning transmission electron microscopy (STEM) as well as synthesis platforms such as pulsed laser deposition (PLD) to synthesize and optimize materials. The focus will be on developing and improving the reliability of agentic AI platforms that can perform atomic manipulation in STM or STEM but will also branch into thin film synthesis such as PLD.   As a Research Associate, you will contribute significantly to research in these areas, bridging simulations with modern AI agents (for example, using reinforcement learning) to inform policies to drive atomic manipulation in microscopy experiments leading to discovery and creation of novel...
Jan 11, 2026
ORNL TN, USA
Requisition Id 15381    Overview: We are seeking a Data Engineer who will focus on engineering design, installation, and troubleshooting associated with the rapidly growing field of stable isotope enrichment. This position resides in the Plasma Enrichment Deployment and Engineering Group in the Plasma Enrichment Science and Engineering Section, Enrichment Science and Engineering Division, Isotope Science and Engineering Directorate, at  Oak Ridge National Laboratory  (ORNL).   The Enrichment Science and Engineering Division serves the nation in two critical areas: advancing enrichment technologies and exploring stable isotope production and applications. The division uses an elite staff of scientists, engineers, and technicians with world-leading capabilities of Oak Ridge National Laboratory to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments. ESED is the national steward for the...