Oak Ridge National Laboratory

Requisition Id 16291 Overview: Do you have a passion for applying AI methods for accelerating scientific discoveries and an ability to think outside of the box in a collaborative and open environment? If so, the Oak Ridge National Laboratory’s Learning Systems Group within the Data and Artificial Intelligence Systems section invites you to apply to our new research professional position in AI for science and national security. We are seeking a cross-disciplinary Information Scientist to advance research data capabilities within a national laboratory environment. This role requires deep expertise in research data management, governance, and interoperable data systems, with a focus on supporting mission-driven science across multiple facilities and programs. The successful candidate will lead complex data initiatives, enabling secure, scalable, and standards-based data integration to accelerate scientific discovery and collaboration. The Learning Systems Group at the...

Requisition Id 16245 Overview: The Reactor Analysis and Modeling (RAM) Group within the Nuclear Safety and Experiment Analysis (NSEA) Section of the Research Reactors Division (RRD), Neutron Sciences Directorate (NScD) is seeking a Distinguished R&D Reactor Physics Staff at the High Flux Isotope Reactor (HFIR). The HFIR is a nuclear reactor at Oak Ridge National Laboratory and has one of the highest power densities in the world. Our purpose is to support neutron scattering experiments, to produce medical and industrial isotopes that require one of the highest thermal neutron fluxes in the world, and to perform fuels and materials irradiation experiments. We are looking for a highly motivated senior reactor analyst who is comfortable working in a team environment, with collaboration at all levels, disciplines, and diverse cultural backgrounds both inside and outside the organization. The successful candidate should have a strong interest in nuclear reactor...

Requisition Id 16226 Overview: We are seeking highly motivated and skilled nuclear research scientists to join our dynamic research team. You will play a pivotal role in advancing the field of nuclear science and technology by contributing to various research initiatives across multiple areas. This position offers a unique opportunity to engage in innovative projects related to nuclear safety, advanced materials, energy systems, and more, while collaborating with interdisciplinary teams to drive critical advancements in the nuclear sector. This is an evergreen position. We are continually reviewing applications to fill potential openings as they arise. If you are eager to advance your knowledge and skills in a collaborative environment, apply today to be part of our dynamic environment! The Oak Ridge National Laboratory (ORNL), established in 1943 as part of the Manhattan Project, is a leading U.S. research facility renowned for its contributions to nuclear...

Requisition Id 15603 Overview: The National Center for Computational Sciences (NCCS) at the Oak Ridge National Laboratory (ORNL) is seeking a postdoctoral research associate in the area of HPC Confidential Computing and Secure Multi-tenancy. The candidate will be able to make research contributions in areas of system software architectures to support secure computing enclaves on large scale HPC and supercomputing resources. The candidate will also contribute to the development of large-scale identity and key management solutions. We are a leader in computational and computer science, with signature strengths in high-performance computing and data analytics with applications in a large variety of science domains and NCCS is home to some of the fastest supercomputers and storage systems in the world. This position is in the Technology Integration group within NCCS. Specific areas of research interest include: Integration of memory encryption, confidential...

Requisition Id 16218 Overview: The Multiscale Biomedical Systems Group within the Advanced Computing in Health (ACH) section of the Computational Sciences and Engineering Division (CSED) at Oak Ridge National Laboratory (ORNL) seeks a motivated Research Professional. This position primarily focuses on large-scale molecular dynamics (MD) simulations and AI-integrated multiscale modeling of complex biosystems. The successful candidate will also contribute to efforts that bridge molecular, cellular, and systems-level modeling, with growing relevance to emerging paradigms such as whole-cell modeling and networked biological systems. You will work at the intersection of high-performance computing (HPC), computational biophysics, and machine learning, leveraging leadership-class computing resources and collaborating across ORNL, federal agencies, and academic partners. Key Responsibilities: Develop and apply scalable molecular dynamics (MD) and multiscale...

Requisition Id 16217 Overview: The Multiscale Biomedical Systems Group within the Advanced Computing in Health (ACH) section of the Computational Sciences and Engineering Division (CSED) at Oak Ridge National Laboratory (ORNL) seeks a motivated Postdoctoral Research Associate. This position primarily focuses on large-scale molecular dynamics (MD) simulations and AI-integrated multiscale modeling of complex biosystems. The successful candidate will also contribute to efforts that bridge molecular, cellular, and systems-level modeling, with growing relevance to emerging paradigms such as whole-cell modeling and networked biological systems. You will work at the intersection of high-performance computing (HPC), computational biophysics, and machine learning, leveraging leadership-class computing resources and collaborating across ORNL, federal agencies, and academic partners. Key Responsibilities: Develop and apply scalable molecular dynamics (MD) and...

Requisition Id 16092 Overview: The Information Management Systems (IMS) Group, within the Nuclear Nonproliferation Division (NND) at Oak Ridge National Laboratory, is seeking qualified applicants to join its growing Software Development team. NND is a world-class leader in the development and deployment of technology for nuclear security. Partnering with subject matter experts, our developers solve complex problems through software solutions including program management systems, mission-support systems, data collection, material/asset tracking, and financial tools. The primary job responsibilities for the position include: Developing web applications, primarily using a Microsoft tech stack. Collaborating with team members, Product Owners/Managers, subject matter experts, and other teams to refine requirements and translate into functional software using standardized coding techniques and conventions. Working with Quality Assurance specialists to resolve...

Requisition Id 16092 Overview: The Information Management Systems (IMS) Group, within the Nuclear Nonproliferation Division (NND) at Oak Ridge National Laboratory, is seeking qualified applicants to join its growing Software Development team. NND is a world-class leader in the development and deployment of technology for nuclear security. Partnering with subject matter experts, our developers solve complex problems through software solutions including program management systems, mission-support systems, data collection, material/asset tracking, and financial tools. The primary job responsibilities for the position include: Developing web applications, primarily using a Microsoft tech stack. Collaborating with team members, Product Owners/Managers, subject matter experts, and other teams to refine requirements and translate into functional software using standardized coding techniques and conventions. Working with Quality Assurance specialists to resolve...

Requisition Id 16217 Overview: The Multiscale Biomedical Systems Group within the Advanced Computing in Health (ACH) section of the Computational Sciences and Engineering Division (CSED) at Oak Ridge National Laboratory (ORNL) seeks a motivated Postdoctoral Research Associate. This position primarily focuses on large-scale molecular dynamics (MD) simulations and AI-integrated multiscale modeling of complex biosystems. The successful candidate will also contribute to efforts that bridge molecular, cellular, and systems-level modeling, with growing relevance to emerging paradigms such as whole-cell modeling and networked biological systems. You will work at the intersection of high-performance computing (HPC), computational biophysics, and machine learning, leveraging leadership-class computing resources and collaborating across ORNL, federal agencies, and academic partners. Key Responsibilities: Develop and apply scalable molecular dynamics (MD) and...

Requisition Id 16218 Overview: The Multiscale Biomedical Systems Group within the Advanced Computing in Health (ACH) section of the Computational Sciences and Engineering Division (CSED) at Oak Ridge National Laboratory (ORNL) seeks a motivated Research Professional. This position primarily focuses on large-scale molecular dynamics (MD) simulations and AI-integrated multiscale modeling of complex biosystems. The successful candidate will also contribute to efforts that bridge molecular, cellular, and systems-level modeling, with growing relevance to emerging paradigms such as whole-cell modeling and networked biological systems. You will work at the intersection of high-performance computing (HPC), computational biophysics, and machine learning, leveraging leadership-class computing resources and collaborating across ORNL, federal agencies, and academic partners. Key Responsibilities: Develop and apply scalable molecular dynamics (MD) and multiscale...

Requisition Id 16194 Overview: Interested in taking your scientific computing skills to the next level? We are seeking a research scientist to work in a world-class research group in the areas of emerging architectures and performance for advanced computing. This position resides in the Architectures and Performance Group in the Advanced Computer Systems Research (ACSR) / Comuter Science Mathematics Division (CSMD)/ Computing and Computational Sciences Directorate (CCSD) at Oak Ridge National Laboratory. The Architectures and Performance Group (APG) designs and prototypes the scientific computing systems of tomorrow. APG works closely with domain scientists to solve key computational challenges in DOE’s scientific mission. We are conducting research in emerging computing paradigms such as neuromorphic, analog, and quantum computing. We coordinate and partner with other groups across ORNL, other national laboratories, academia, and industry to investigate the...

Requisition Id 16063 Overview: The Centrifuge Science (CS) Section within the Enrichment Science and Engineering Division (ESED) at Oak Ridge National Laboratory (ORNL) is seeking an Electric Motor Researcher for the Mechanical Systems Modeling (MSM) Group. The Electric Motor Researcher will conduct detailed analysis of electric motors and motor drive systems used in gas centrifuge applications. This role involves troubleshooting electric motor systems, guiding experimental validation, and supporting the development of advanced electromagnetics solutions. 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 national steward...

Requisition Id 16173 Overview: As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an impressive 80-year legacy of addressing the nation’s most pressing challenges. Our team is made up of over 7,000 dedicated and innovative individuals! Our goal is to create an environment where a variety of perspectives and backgrounds are valued, ensuring ORNL is known as a top choice for employment. These principles are essential for supporting our broader mission to drive scientific breakthroughs and translate them into solutions for energy, environmental, and security challenges facing the nation. The Advanced Engineering Technologies (AET) Group is seeking a computational fluid dynamics analyst to specialize in the use and development of computational simulation software for complex aerodynamic systems in the support of the nonproliferation mission space. This position will involve the creation and use of custom developed and off-the-shelf...

Requisition Id 16178 Overview: We are seeking a Postdoctoral Research Associate to support research activities within the Isotope Applications Research Group (IARG) at Oak Ridge National Laboratory (ORNL). This position will focus on the development, characterization, and application of engineered nanoparticles for medical isotope systems, including technologies relevant to isotope processing, separations, stabilization, and advanced therapeutic or diagnostic applications. The successful candidate will contribute to multidisciplinary efforts at the interface of chemistry, nanomaterials, nuclear science, and materials engineering, with emphasis on understanding material behavior in complex chemical and radiological environments. Research activities may include the design of functional nanomaterials, investigation of radiation–matter interactions, evaluation of material performance under extreme conditions, and the development of innovative approaches to improve the...