36 science jobs found in Knoxville, TN

Requisition Id 17254 Overview: The Neutron Sciences Directorate (NScD) is seeking a Chief Engineer (CE) to strengthen and standardize the directorate's Conduct of Engineering across Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR) operations, including their neutron scattering instruments. The CE will lead the rollout of directorate-level engineering governance, including policies, procedures, configuration management, and document control. Under delegated authority, the CE will chair design and safety reviews and change boards, and will work with laboratory stakeholders to improve consistency, efficiency, and reliability. The selected candidate will train with the NScD Asset Management and Engineering Program Manager until that position is vacated. This position resides in the Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Develop/refine and implement directorate-level engineering policies and...

Requisition Id 17332 Overview: Oak Ridge National Laboratory (ORNL) is a U.S. Department of Energy (DOE) Office of Science national laboratory with an extraordinary 80-year history of solving the nation's most complex challenges. ORNL employs over 7,000 staff dedicated to advancing science and technology to support energy, environmental, and national security missions. The Grid Systems Hardware (GSH) Group at ORNL is seeking a highly motivated Power Electronics and Grid Hardware Research Engineer/Associate to support research and development of next-generation grid-integrated hardware systems. This position focuses on hands-on development, integration, and testing of power electronic converters, embedded systems, and grid-connected hardware platforms. The successful candidate will contribute to the development of innovative power electronic systems and controls, support system integration and experimental validation, and work closely with multidisciplinary teams across...

Requisition Id 17070 Overview: We are seeking a Postdoctoral Research Associate who will use multiscale modeling and simulation to develop probabilistic lifting frameworks for high-temperature alloys and extreme environment structural materials. A strong background in mechanical behavior of materials is required. Demonstrated experience in the implementation of nonlinear constitutive models in commercial (e.g. Abaqus, ANSYS, etc.) and/or open-source finite element (FE) codes (e.g., MOOSE, DAMASK, etc.) is required. Experience with microstructural modeling (e.g. crystal plasticity) applied to fatigue and ductile fracture is preferred. You will be expected to collaborate with research staff and industry partners to support certification and qualification efforts for components produced by various advanced manufacturing processes. This position resides in the Deposition Science and Technology Group in the Manufacturing Science Division (MSD), Energy Science and Technology...

Requisition Id 17068 Overview: For this role, we are seeking an enthusiastic postdoctoral researcher to further develop their expertise in both lifecycle analysis and technoeconomic analysis for several key U.S. industries. As part of this role, the ideal candidate will be passionate about manifesting higher-level project deliverables into a timely, high-quality product. The immediate project needs for this candidate are between two larger efforts in the laboratory. The first effort is in identification of cost-effective technologies (both emerging and at industrial scale) for critical minerals recycling from electronics wastes. In this effort, the candidate will have a direct impact in informing the U.S. Department of Energy's approach to e-waste recycling. The second approach involves supporting manufacturers and water utilities in setting long-term targets to significantly improve energy and water efficiency throughout their U.S. operations over a ten-year period. The ideal...

Requisition Id 17067 Overview: For this role, we are seeking an enthusiastic postdoctoral researcher to either refine or develop their expertise in composites manufacturing and characterization. As part of this role, the ideal candidate will be passionate about manifesting higher-level project deliverables into a timely, high-quality product. The immediate project needs for this candidate are in the development and optimization of products for a variety of industries from automotive to aerospace made from new bio- and waste-derived plastic resins and fillers. The ideal candidate for this role would be passionate about leveraging their experience or developing new expertise in composites manufacturing through a variety of methods from benchtop to pilot-scale. They should then be passionate about leveraging the one-of-a-kind characterization capabilities available across the laboratory to perform necessary characterization techniques to understand, optimize, and refine the...

Duties: • Lead mechanical design and development efforts for new product platforms and major product enhancements. • Own complete mechanical systems and subsystems throughout the product lifecycle. • Develop and evaluate multiple design concepts and recommend optimal solutions based on technical, business, and customer requirements. • Perform engineering analysis to validate design decisions. • Execute product development activities from concept through production release. • Identify technical risks early and develop mitigation strategies. • Serve as the technical owner for assigned products and mechanical systems. • Make independent engineering recommendations and decisions within defined program objectives. • Influence product architecture and long-term technology direction. • Create and maintain 3D CAD models, drawings, and product documentation. • Manage engineering changes and support configuration control processes. • Ensure designs consider manufacturability, assembly,...

Requisition Id 17401 Overview: We are seeking a Postdoctoral Research Associate to conduct residual stress characterization resultant from advanced manufacturing processes by Engineering Diffraction. This position resides in the Engineering Diffraction Group within the Engineering Diffraction and Imaging Section, Neutron Scattering Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). The selected candidate will work in a highly collaborative environment with teams in the Neutron Sciences Directorate, the Physical Sciences Directorate, and the Manufacturing Demonstration Facility. The candidate will use neutron diffraction to characterize residual stress in materials made by additive manufacturing and advanced joining methods. The research will focus on using neutron diffraction to measure residual strain and stress in additively manufactured and joined alloys. The candidate will relate these measurements to processing conditions, microstructure,...

Requisition Id 17074 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...

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 17304 Overview: The Biological Systems Design Group in the Biosciences Division at Oak Ridge National Laboratory (ORNL) is seeking a Postdoctoral Researcher with expertise in fungal systems and genetics. The successful candidate will be part of the Synthetic Biology section (https://www.ornl.gov/group/synthetic-biology) and will contribute to a Laboratory Directed Research and Development (LDRD) project focused on developing bio-enabled approaches for critical mineral accessibility and recovery. In this position, you will investigate the genetic and molecular mechanisms underlying fungal interactions with lithium-bearing minerals and other critical-material systems. Research will emphasize genetically tractable non-model fungal organisms, including the development and application of genome engineering approaches to identify and functionally characterize genes and pathways associated with mineral interactions, stress tolerance, elemental partitioning, and...

Requisition Id 17285 Overview: Oak Ridge National Laboratory (ORNL) 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. Within ORNL, the Building Envelope Materials Research (BEMR) Group conducts research on materials, thermal management, infrastructure resilience, and technologies that improve the reliability and performance of energy systems to meet DOE's energy affordability and resiliency goals. We are seeking a Postdoctoral Research Associate to conduct research on the resilience of U.S. natural gas infrastructure during extreme cold-weather events. The successful candidate will investigate the causes and consequences of weather-related natural gas supply disruptions, develop modeling and analytical approaches to evaluate system vulnerabilities, and assess technologies and operational strategies that can improve infrastructure...

Requisition Id 17387 Overview: The Materials Science and Technology Division (MSTD) within the Physical Sciences Directorate (PSD) at Oak Ridge National Laboratory (ORNL) is seeking a Metallurgical Engineer to join the Materials Processing Group. This position will focus on the development, optimization, and application of metallurgical processing methods for a range of alloy systems, with particular emphasis on wire fabrication and wire drawing. The successful candidate will help establish and advance ORNL's capabilities for producing small- and intermediate-scale wire products from materials such as aluminum, copper, steels, nickel-based alloys, and refractory metals. Responsibilities include process development, microstructural characterization, mechanical property evaluation, and correlation of processing conditions with material structure and performance. Major Duties/Responsibilities: Develop and establish state-of-the-art capabilities to fabricate small- and...

Requisition Id 17395 Overview: We are seeking a Configuration Control Manager who will lead the configuration management program for the High Flux Isotope Reactor (HFIR), provide technical support to operations and maintenance, and perform systems analysis. This position resides in the HFIR Engineering Section, Research Reactors Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). The Neutron Sciences Directorate operates HFIR, the nation's highest flux reactor-based neutron source, and the Spallation Neutron Source (SNS), the world's most intense pulsed accelerator-based neutron source. Together these facilities operate 30 instruments for neutron scattering research and support more than 1,000 experiments each year across the physical, chemical, materials, biological, and medical sciences. Major Duties/Responsibilities: Serve as the HFIR Configuration Control Manager, establishing and executing configuration management in accordance with...

Requisition Id 17392 Overview: We are seeking a Chemical Engineer who will focus on nuclear nonproliferation fuel cycle research. The candidate chosen for this position will be involved in work supporting the Nonproliferation Stewardship Program and other related research efforts. This position resides in the Uranium Chemistry, Application, and Simulation Group in the Material Characterization & Modeling Section, Nuclear Security Materials & Signatures Division, National Security Sciences Directorate, at ORNL. This position will spend time performing hands on laboratory research as well as effectively communicating the results of the laboratory research in the form of technical reports, presentations, and journal articles. This position will also require some design work to create the infrastructure to pursue the hands-on laboratory work. Major Duties/Responsibilities: The successful candidate, in collaboration with principal investigators and project management...

Requisition Id 17325 Overview: We are seeking an R&D Group Leader for the Macromolecular Nanomaterials (Macro) 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 17374 Overview: We are seeking a Technical Professional to support the development, fabrication, and testing of electrochemical energy-storage and conversion technologies. This position resides in the Energy Storage and Conversion Group in the Chemical Sciences Division at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Prepare, assemble, and evaluate electrochemical cells, test fixtures, and related components for battery and redox-flow-battery research, following approved procedures and project requirements. Operate, troubleshoot, and maintain laboratory equipment and electrochemical test systems; support routine upkeep and ensure components, materials, and supplies are ready for scheduled work. Prepare samples and conduct electrochemical tests; organize, analyze, and quality-check results while maintaining complete experimental records and data files. Work with researchers, engineers, and project partners to execute work plans,...

Requisition Id 17378 Overview: We are seeking a Senior Radioisotope Processing Technician to support radioisotope processing for the 4501 Operations Group within the Medical and Industrial Isotope Processing Section (MIIPS) of the Isotope Processing and Manufacturing Division (IPMD), at Oak Ridge National Laboratory (ORNL). The 4501 Operations Group within the MIIPS and IPMD at ORNL has an immediate opening for a Senior Radioisotope Processing Technician. We are seeking a highly motivated, organized, and talented candidate to join our growing team to work on our expanding radioisotope production demands. Using the unique capabilities at ORNL, including the High Flux Isotope Reactor (HFIR) and related radiochemical and nuclear processing facilities, the group supports a variety of projects supplying difficult-to-produce radioisotopes essential for medical, research, and industrial applications. Production of these radioisotopes supports the mission of the Department of Energy...

Requisition Id 17349 Overview: The Radioisotope Science and Technology Division (RSTD) of the Oak Ridge National Laboratory (ORNL) seeks applications for a Section Head for the Research and Operations Integration Section. Supporting the largest radioisotope production and research portfolio within the Department of Energy Isotope Program, RSTD executes a research, development, and demonstration (RD&D) portfolio focused on the production, applications, and fundamental properties of radioisotopes. RSTD works with rare and valuable radionuclides including several alpha emitting radioisotopes either deployed or under clinical trial for treatment of cancer (e.g., Ac-225, Ac-227); heavy actinides Bk-249, Es-254, and Fm-257 for fundamental chemistry research and new element discovery; Pm-147, Se-75, and Ir-192 for industrial manufacturing and inspection; C-14 for biological radiotracers; Cf-252 for neutron emitting applications; and Pu-238 for space exploration. Work in RSTD takes...

Requisition Id 17356 Overview: We are seeking a Reliability Engineer who will focus on developing, implementing, and improving a reliability and asset management program for predictive operations for the systems within the Facilities and Operations (F&O) Directorate. This position resides in the Reliability Engineering Team in the Infrastructure Reliability Group in the Integrated Operations Support Division, F&O Directorate, at Oak Ridge National Laboratory (ORNL). As part of our team, you will collaborate with system stakeholders and various operations personnel to employ the reliability program for F&O managed equipment throughout ORNL facilities and systems. This position will provide reliability cultural leadership to system stakeholders to build a sustainable reliability and asset management program. As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an extraordinary 80-year history of solving the nation's biggest...

Requisition Id 17354 Overview: The Plasma Facing Components & Engineering (PFCE) Division at the Oak Ridge National Laboratory (ORNL) seeks applications for a RF engineer experienced with high power RF systems (100 kW to 500 kW) to support operations, maintenance, repairs, upgrades, and develop performance techniques for the Material Plasma Exposure eXperiment (MPEX). MPEX is a linear plasma device under construction at ORNL that enables expanded fusion reactor-relevant material science capabilities, particularly those related to plasma material interaction (PMI) research. MPEX will deliver steady state plasmas to PMI targets with heat fluxes of 10 MW• m-2 and particle fluences of 1031 m-2 for up to 2-weeks. The plasma source and heating (PS&H) systems use 13.56 MHz, 4-9 MHz, and 70 or 105 GHz sources to enable independent control of ion and electron temperatures, facilitating plasma conditions at the target that closely resemble those observed at the divertor region...