34 jobs found in Oak Ridge, TN

Requisition Id 16393 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. Key Responsibilities: Develop and validate Virtual Clinical Trial (VCT) frameworks to simulate patient populations and evaluate the efficacy of radiopharmaceutical interventions and imaging protocols. Integrate AI/ML techniques with Monte Carlo simulations (e.g., Geant4, MCNP) to accelerate radiation transport calculations and image reconstruction workflows....

Requisition Id 16397 Overview: We are seeking a Senior Radiological Engineer who will provide expert level support for the operation of a diverse range of radiological instrumentation to meet needs throughout Oak Ridge National Laboratory (ORNL). Areas of focus include the Radiological Effluent Stack Monitoring program, the Central Radiological Counting Laboratory, the Portable Nondestructive Assay (NDA) program, and the Whole-Body Counting Facility. This position resides within the Nuclear and Radiological Measurements (NRM) team of the Nuclear Measurements and Analytical Services (NMAS) Group of the Nuclear and Radiological Protection Division (NRPD) under the Environmental, Safety, Health, and Quality Directorate at Oak Ridge National Laboratory. Major Duties/Responsibilities: Serve as the primary subject matter expert within the NRM Team for the Radiological Effluent Stack Monitoring Program. Develop and expand the stack monitoring program with the addition of future...

Requisition Id 15612 Overview: We are seeking a Technical Professional-Radioisotope Processing to support the 3047 Operations Group within the Isotope Processing and Manufacturing Division (IPMD), at Oak Ridge National Laboratory (ORNL) to support isotope production operations. Description: The 3047 Operations Group within the Isotope Processing and Manufacturing Division (IPMD) at Oak Ridge National Laboratory (ORNL) is seeking a Senior Radiochemical Processing Technical Professional to support the production of high-priority radioisotopes, specifically radium-226 (Ra-226), actinium-227 (Ac-227), and thorium-228 (Th-228). This is an immediate opportunity for a highly motivated, organized, and technically skilled individual to join a dynamic team focused on expanding domestic radioisotope production capabilities. Our current priorities center on scaling and optimizing production processes for Ra-226, Ac-227, and Th-228 to meet growing national and global demand. The...

Requisition Id 16396 Overview: We are seeking a Mechanical Engineer with experience in piping and mechanical utility systems, including but not limited to: Potable Water, Steam, Condensate, Natural Gas, Compressed Air, Sanitary Sewer, Cooling Towers, Chillers, heat exchangers, and other utility systems. This role will support various infrastructure and utility projects through their full life cycle, from concept to design to construction and startup. This role includes supplying technical and field oversite on various projects across the ORNL reservation. This position resides in the Utilities and Site Modernization Team within the Laboratory Modernization Division, part of the Facilities & Operations Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Provide technical support for multiple design and construction projects simultaneously, supporting the projects from conception to startup, Develop conceptual sketches, scopes of work,...

Requisition Id 16389 Overview: We are seeking a Physical Metallurgist who will focus on processing structure property relationships in structural materials. This position resides in the Materials for Advanced Manufacturing GROUP in the Materials Structure and Processing Science Section, Materials Science & Technology Division, Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Understand phase transformation and physical metallurgy of various ferrous and non-ferrous alloys. Metallography and characterization of parts as well as components manufactured via additive and conventional manufacturing techniques. Collaborate within a multi-disciplinary research environment consisting of computational scientists, experimentalists, and engineers conducting basic and applied research in support of the Laboratory's missions. Support senior staff in the development and execution of projects that provide valued and timely...

Requisition Id 16391 Overview: The Quantum Communications and Networking Group, within the Quantum Information Sciences Section, Computational Sciences and Engineering Division at Oak Ridge National Laboratory, is seeking a research and development (R&D) Scientist. Major Duties/Responsibilities: Participate in new and ongoing research on classical and quantum optics communications and sensing projects. Formulate novel classical and quantum optical sensing solutions to problems of national interest and support the research and development necessary for the practical implementation of those solutions Participate in field testing and demonstrations Interpret, report, and present research concepts and results to national audiences at all levels Write peer-reviewed papers and technical reports for internal and external release and represent the organization by giving technical presentations in large public forums Deliver ORNL's mission by aligning behaviors,...

Requisition Id 16386 Overview: We are seeking a Postdoctoral Research Associate to conduct advanced research on the mechanical behavior and microstructure evolution of advanced structural alloys. This position resides in the Multiscale Modeling and Materials by Design (M2MD) Group within the Materials Science and Technology Division (MSTD), Physical Sciences Directorate (PSD) at Oak Ridge National Laboratory (ORNL). The selected candidate will work in a highly collaborative environment, leveraging state-of-the-art neutron and X-ray characterization facilities to develop a mechanistic understanding of deformation, strengthening, and failure in advanced alloys. The research will focus on integrating microstructure characterization, in situ diffraction techniques, and mechanical testing to uncover processing-microstructure-property relationships. The candidate will have opportunities to interact with multidisciplinary teams and contribute to high-impact publications and...

Requisition Id 16381 Overview: We are seeking a Postdoctoral Research Associate who will focus on understanding the longevity of precipitated amorphous materials, including those containing critical materials. This position resides in the Geochemistry and Interfacial Sciences (GIS) Group in the Chemical Science Division (CSD) at Oak Ridge National Laboratory (ORNL). The selected candidate will work collaboratively with scientists in CSD to develop an understanding of stability of amorphous carbonate and other amorphous materials. In addition to working in GIS group laboratories, the research will also take advantage of DOE user facilities, e.g., the Spallation Neutron Source (SNS) and Center for Nanophase Materials Sciences (CNMS) at ORNL or at the Advanced Photon Source (APS) at Argonne National Laboratory. The Postdoctoral Research Associate will focus on scientific projects to advance our understanding of the lifetimes of amorphous materials, including those containing...

Requisition Id 16300 Overview: We are seeking a Fusion Blankets Lead to provide strategic and technical leadership for research and development (R&D) in fusion blanket and fuel cycle technologies at Oak Ridge National Laboratory (ORNL). This position will play a central role in shaping and executing ORNL's vision for fusion nuclear science and engineering, with emphasis on tritium breeding, fuel cycle closure, and power extraction systems for future fusion energy devices. The Fusion Blankets Lead will report to the Fusion Energy Division Director and work across ORNL's Fusion Energy Division (FED), Materials Science and Technology Division (MSTD), and other directorates to develop and integrate a coordinated, lab-wide strategy. This role will also interface closely with DOE, international partners, and the private fusion sector. A key responsibility will be defining and advancing the technical basis and programmatic strategy for fusion blanket and fuel cycle technologies,...

Requisition Id 16289 Overview: We are seeking a Materials Engineer with a strong foundation in materials science and mechanical engineering to contribute to R&D efforts focused on mechanical behavior and underlying material mechanisms. This position resides in the Mechanical Behaviors and Mechanics Group in the Materials in Extremes, Materials Science and Technology Division, Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Assist with coordinating research projects ensuring alignment with organizational goals. Administer daily operations and maintain compliance with safety protocols. Conduct routine experiments and analyze data to support research objectives. Document experimental procedures, results, and technical reports for internal dissemination. Implement new methodologies and recommend improvements to enhance research outcomes. Apply knowledge to evaluate material's performance and identify...

Requisition Id 16363 Overview: Oak Ridge National Laboratory (ORNL) is the world's premier research institution, empowering leaders, and teams to pursue breakthroughs in an environment marked by operational excellence and engagement with the communities where we live and work. ORNL invites you to apply to its Distinguished Staff Fellowship (DSF) Program. This program recognizes outstanding early-career scientists and engineers who have excelled in their academic and professional subject areas and show promise as future science leaders. The program offers highly sought-after fellowships in various research fields, including biology and the environment, clean energy, fusion and fission, isotope science, materials science, national security, neutron science, and supercomputing. Applicants selected to become DSFs will be named to one of three fellowships based on their scientific background. The fellowships honor three prominent scientists who made a Big Science impact at ORNL....

Requisition Id 16335 Overview: We are seeking a Beam Instrumentation Systems Lead to support the design, development, implementation, and maintenance of beam instrumentation systems for the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). This role contributes to improving accelerator performance, reliability, and availability through advanced diagnostic and control system development. This position reports to the Beam Instrumentation Group Leader within the Accelerator Science & Technology Section, Research Accelerator Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). The Spallation Neutron Source is a world-leading facility and the most powerful pulsed proton accelerator in the world, producing neutron beams for cutting-edge materials science research. ORNL is the U.S. Department of Energy's largest science and energy laboratory, delivering transformative solutions in energy, science, and national security. Within...

Requisition Id 16329 Overview: We are seeking an R&D Group Leader for the Functional Hybrid Nanomaterials (FHN) Group within the Nanomaterials Synthesis and Nanofabrication Section at the Center for Nanophase Materials Sciences (CNMS). The CNMS provides the national and international user communities access to expertise and equipment for a broad range of nanoscience research, including nanomaterials synthesis, nanofabrication, imaging/microscopy/characterization, and theory/modeling/simulation. The selected group leader will be part of the Nanomaterials Synthesis and Nanofabrication Section, which develops and applies state-of-the-art synthesis and diagnostics methods to understand growth mechanisms and function of complex materials in support of the CNMS user program and in-house theme science. As a Senior R&D Staff Member and Group Leader at the CNMS, your work will combine science with leadership. As a Group Leader, you will be instrumental in shaping and...

Requisition Id 16065 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 Machine Design Engineering Group Leader 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...

Requisition Id 16317 Overview: We are seeking a Mechanical Engineer who will focus on managing the fabrication and procurement of large specialized equipment for nuclear materials processing. This position resides in the Radioisotope Infrastructure Development Group in the Radioisotope Production Engineering and Analysis Section, Radioisotope Science and Technology Division, Isotope Science and Enrichment Directorate at Oak Ridge National Laboratory (ORNL). As part of our team, you will provide engineering support for the design, fabrication, procurement, installation, and commissioning of shielded hot cells, gloveboxes, mechanical and chemical processing equipment, and other specialty scientific systems. You will support projects for both new and existing projects and programs. The work is performed under exacting quality specifications including ASME NQA-1, and with the adherence to conduct of operations in nuclear facilities. This position requires good team dynamics,...

Requisition Id 16315 Overview: We are seeking an engineer who will focus on using surveying and engineering analysis skills to plan accurate, high-precision metrology and alignment on a wide variety of mechanical systems in support of the Spallation Neutron Source (SNS) accelerator systems and neutron beam lines. The position will also occasionally support other projects and efforts across the Oak Ridge National Lab complex. This position resides in the Survey, Alignment, and Metrology Group in the Neutron Technologies Engineering Section, Neutron Technologies Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Work with scientists, engineers, and technicians to achieve required alignment and metrology tolerances. Perform analysis of measurements using coordinate system transformations, least squares, and uncertainty propagation. Plan and supervise dimensional inspection and feudalization of mechanical...

Requisition Id 16297 Overview: We are seeking a Postdoctoral Research Associate who will focus on polymer synthesis and characterization for fundamental understanding of depolymerization and polymerization of polymers coupled with autonomous chemistry https://www.ornl.gov/project/precision-synthesis-polymers-mastering-reaction-equilibria. This position resides in the Soft Materials and Membranes group in the Separation and Polymer Chemistry section, Chemical Sciences Division, Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL). As part of our team, the postdoc will synthesize novel polymers (both polymerization and depolymerization) especially utilizing robotic autonomous chemistry, unravel mechanistic understanding, valorize to new polymers using depolymerized building blocks, as well as conduct their characterization. The project is highly collaborative, and the postdoc will work with other polymer scientists, physicists, computational scientists, as...

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 analysis and a...

Requisition Id 16290 Overview: We are seeking Postdoctoral Research Associates who will focus on materials joining and allied materials sciences and manufacturing technologies. These positions reside in the Materials Joining Group in the Materials Analysis and Interface Science Section, Materials Science and Technology Division, Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL). Multiple positions are available to support R&D with different research focuses. They include innovations in joining and materials processing/synthesis, AI/ML for process monitoring and control, and physics based computational modeling of joining processes or performance of welded structures. As a postdoc, you will conduct research and development at the forefront and often at the intersection of above topic areas as part of our multi-disciplinary team, with access to the vast research resources in a national laboratory environment, to advance your career. Major...

Requisition Id 16258 Overview: The Environmental Risk and Energy Analysis group within the Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL), is seeking a Scientist position in radiation dosimetry research. We seek a colleague with research interests in exploring radiation effects on humans using advanced simulation and computational approaches for radiation dose modeling and assessments. Responsibilities of the position will include advancing the Center for Radiation Protection Knowledge's (CRPK) existing research capabilities and ongoing programs as well as assisting in developing new research programs in radiation dosimetry. Environmental Sciences Division is an interdisciplinary research and development organization with over 60 years of achievement in local, regional, national, and international environmental research. Our vision is to expand scientific knowledge and develop innovative strategies and technologies that will strengthen the...