11 jobs found in Maryville, TN

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 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 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 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 16933 Level: TP04 Overview: The Design Engineering Group in the Nonreactor Nuclear Facility Division (NNFD) is hiring a Mechanical Design Engineer for its Mechanical Design Team. The engineer will work with project teams, discipline leads, and stakeholders to design and analyze mechanical systems for nuclear and radiological facilities. Projects include hot cells, gloveboxes, shielded carriers, lift fixtures, pressure vessels, process piping, confinement ventilation systems, and various tools for isotope research & production. Major Duties/Responsibilities: Define and record design requirements, connections, assumptions, and standards for each project. Check existing conditions through reviewing records, site visits, measurements, and inspections. Create calculations, analyses, specifications, and complete design documents; use a graded approach and clearly document decisions. Work with other engineers, designers, and stakeholders to coordinate...

Requisition Id 16909 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 innovation...

Requisition Id 16910 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. We are seeking an entry level Electrical Engineer who will support the Electrical Power Conversion Group in the Research Accelerator Division (RAD), Neutron Sciences Directorate (NScD) at ORNL. As an Electrical Engineer you will support operation, maintenance, repairs, and upgrades of High Voltage Converter Modulator Systems, Magnet Power Supplies, Accelerator Beam Kickers, and High Voltage Beam Chopper systems in the Spallation Neutron Source (SNS) accelerator complex. This requires project and work planning; specification and procedure writing; system design, including validation testing; and equipment troubleshooting and repair. You will report to the Electrical Power Conversion Group Leader and collaborate with the...

Requisition Id 16728 Overview: The Manufacturing Energy Efficiency Research and Analysis (MEERA) Group at Oak Ridge National Laboratory (ORNL) is seeking a Technical Professional to support the U.S. Department of Energy's Better Buildings, Better Plants Program. This position will operate and continuously improve the Better Plants Diagnostic Equipment Program, which provides industry partners with access to energy measurement and diagnostic tools that support energy efficiency, reliability, and competitiveness goals. The selected candidate will serve as the primary technical and operational point of support for diagnostic equipment requests. The role will combine hands-on instrumentation, partner-facing technical assistance, inventory and calibration management, equipment readiness, field measurement support, and documentation. The candidate will work closely with ORNL researchers, technical account managers, DOE program staff, energy system experts, and manufacturing partners...

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...

Important Application Submission Information In order to ensure your application is successfully received before the job posting expires, please submit your application by 11:59 PM on Wednesday, September 9, 2026 More than a career - a chance to make a difference in people's lives. Build an exciting, rewarding career with us - help us make a difference for millions of people every day. Consider joining the Duke Energy team, where you'll find a friendly work environment, opportunities for growth and development, recognition for your work, and competitive pay and benefits. The Keowee Supervisor is responsible for the safe day-to-day operation/maintenance/testing of the station as the on-site emergency power supply to the Oconee Nuclear Station. They will be accountable for the quality of all evolutions in accordance with approved Duke Energy Directives and Policies. The supervisor manages the staffing, support, and coordination of daily activities while maximizing the...