11 jobs found in Knoxville, TN

Requisition Id 17105 Overview: We are seeking a Postdoctoral Nuclear Engineer in the Nuclear Nonproliferation Division (NND), division operating within the National Security Sciences Directorate (NSSD) at Oak Ridge National Laboratory (ORNL). The NND performs research and development to detect, characterize, and monitor nuclear fuel cycle activities and nuclear explosions; develops concepts, approaches, and technologies to strengthen global security for nuclear and radiological material; and engages with federal agencies to enhance international nonproliferation regimes. The Postdoctoral Nuclear Engineer will conduct R&D in nuclear nonproliferation with expertise in computational nuclear reactor physics through modeling and simulation (M&S). The candidate will perform analysis and methods development in areas such as reactor core physics, nuclear fuel cycle assessments, radionuclide inventories, and source terms. The major customers of the work performed in this group...

Requisition Id 17063 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 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 centrifuge technology...

Requisition Id 17106 Overview: The Advanced Engineering Technologies (AET) Group is seeking a dedicated applied mechanical engineer. This position will involve machine design and process engineering in a research and development atmosphere requiring both analytical and hands-on activities. Projects range from new equipment detailed design and tooling, to small consulting tasks. With technical guidance from a senior level Mechanical Engineer, you will be involved in supporting the following: Contribute to engineering deliverable development such as drawings, reports, specifications, and studies. Perform routine research and develop recommendations for equipment and/or materials selection. Hands-on construction of mission equipment Prepare basic engineering calculations following standard methods and principles used in similar engineering analysis. Utilize and develop an understanding of industry codes and standard practices. AET resides within the Nuclear...

Requisition Id 17095 Overview: Oak Ridge National Laboratory (ORNL) is the largest US Department of Energy science and energy laboratory, conducting basic and applied research to deliver ground-breaking solutions to compelling problems in energy and security. We are seeking a Power Electronics Engineer who will support the Electrical Power Conversion Group in the Research Accelerator Division (RAD), Neutron Sciences Directorate (NScD) at ORNL. As a Power Electronics Engineer at the Spallation Neutron Source (SNS), you will support the operation, maintenance, repair, and upgrades of high-voltage systems, including Converter Modulators, Magnet Power Supplies, Beam Kickers, and Choppers. Responsibilities include planning projects, developing specifications and procedures, designing and testing systems, and troubleshooting equipment. Reporting to the Electrical Power Conversion Group Leader, you will collaborate with ORNL staff, vendors, and external partners to drive...

Requisition Id 16822 Overview: The Laboratory Modernization Division (LMD) at Oak Ridge National Laboratory (ORNL) is seeking qualified applicants for the position of Mechanical Engineer, with experience in the design, construction, and operation of mechanical systems supporting data centers. The selected candidate will provide engineering and design oversight for facility-level process cooling systems and subsystems, including the interfaces between those systems and specific High Performance Computing platforms. This role includes providing technical and field oversight for construction on a new data center facility at ORNL. This position resides within the New Facility Construction Group within the Laboratory Modernization Division, which is part of the Facilities & Operations (F&O) Directorate. The successful candidate will support planning, design, construction, commissioning, and turnover of mechanical and related facility systems for a large-scale, high-security...

Requisition Id 16512 Overview: We are seeking a Chief Safety Basis Engineer who will primarily focus on safety basis quality and adequacy for all nuclear facilities at Oak Ridge National Laboratory (ORNL). The Chief Safety Basis Engineer is the senior nuclear safety engineer within ORNL's Nuclear Facility Safety Division (NFSD). Nuclear Facilities Safety Division resides in the Environment Safety Health & Quality (ESH&Q) Directorate at ORNL. As part of our team, you will be given the opportunity to grow in leadership while contributing to the team environment to accomplish the tasks needed to support safe and efficient operations of the HFIR reactor and non-reactor nuclear facilities across the ORNL compass. The successful candidate must be a leader with the ability to communicate with various levels of management and engineering disciplines, build team cohesion, and one who values diversity of opinion, education, and experiences. Major Duties/Responsibilities:...

Requisition Id 17083 Overview: We are seeking an Operations Engineer who will focus on nuclear nonproliferation research involving hands on operations with Uranium processing in the Uranium Chemistry, Application, and Simulation Group in the Materials Characterization and Modeling Section in the Nuclear Nonproliferation Division, of the National Security Sciences Directorate, at Oak Ridge National Laboratory (ORNL). This position will be involved in work supporting Nuclear Materials Verification, the Nonproliferation Stewardship Program, and other related research efforts. The Operations Engineer will spend approximately 30% of their time performing hands on work, 30% of their time creating designs, and 40% procuring parts for the design and building the designed effort. Major Duties/Responsibilities: Participate in projects that design, fabricate, assemble, and operate nuclear fuel cycle unit operations and processes Contribute to R&D projects that involve nuclear...

Requisition Id 17011 Overview: The Nuclear Energy and Fuel Cycle Division (NEFCD) of Oak Ridge National Laboratory (ORNL) is seeking a Postdoctoral Research Associate to assist in the development, qualification, and deployment of AI agents and models, Computational Fluid Dynamics (CFD) simulation codes, and Finite Element Method (FEM) based tools for nuclear energy (fission and fusion) applications. The position is part of the Multiphysics CFD Applications group, focusing on the development and application of models and simulations for energy production and nuclear systems. Major Duties/Responsibilities: Conduct research and develop next-generation CFD methods (with finite volume and finite element techniques) and models for a variety of nuclear energy systems, using world-leading high-performance computing platforms. Perform large-scale simulations of fission and fusion systems employing models for turbulence, heat transfer, magnetohydrodynamics, etc. Employ finite...

Requisition Id 16986 Overview: We are seeking a Mechanical Design Engineer who will provide mechanical engineering design support for Spallation Neutron Source (SNS) systems, with emphasis on remote handling, post-irradiation examination (PIE) support, activated component handling, and spent component disposal support. This position also provides remote handling technical support to operations personnel during maintenance outages. This position resides in the Target Engineering Group in the Target Development, Engineering & Operations Section, Neutron Technologies Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Provide mechanical engineering design support for all phases of remote handling. Support fabrication, commissioning, operation, troubleshooting, and maintenance of remote handling tools and systems. Develop concepts to final detailed designs using Creo. Prepare plans, estimates, and...

Requisition Id 16947 Overview: We are seeking a Fuel Cycle Nuclear Engineer to focus on applications related to storage and transportation of spent nuclear fuel and high-level radioactive materials. This position resides in the Nuclear Materials Packaging, Transportation, and Systems Analysis (NMPTSA) group in the Integrated Fuel Cycle Section, Nuclear Energy and Fuel Cycle Division, and Fusion and Fission and Science Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: As part of our research team, you will be responsible for independently solving a variety of complex technical problems in projects related to spent nuclear fuel waste management. You will have the opportunity to research and develop analytical methods and technologies supporting all aspects of the nuclear fuel cycle including R&D activities related to storage, transportation, and disposal of used nuclear fuel and high-level radioactive waste. You will support the...

Requisition Id 16804 Overview: Oak Ridge National Laboratory (ORNL) is seeking a Nuclear Mechanical Engineer with experience in the analysis of heat transfer and fluid flow in nuclear systems to provide support in the development of novel radioisotope production targets and enhanced tools for analysis. You will work with scientists, engineers, and technicians to develop thermal and fluid flow models for HFIR isotope production targets. A successful candidate will be capable ofleading efforts to achieve isotope production objectives, including HFIR target design, qualification, fabrication, irradiation, and post-irradiation chemical processing. The work is performed under exacting quality standards and in accordance with conduct of operations requirements for nuclear facilities, requiring strong technical judgment, attention to detail, and the ability to work efficiently under demanding schedules. Excellent communication and interpersonal skills are essential, as success in...