Oak Ridge National Laboratory

Requisition Id 16745 Overview: We are currently seeking qualified applicants for a Senior Nondestructive Assay (NDA) Scientist in the Non-Destructive Measurement Science and Technology Group within the Safeguards and Treaty Verification Section in the Nuclear Nonproliferation Division. The Safeguards and Treaty Verification Section focuses on enhancing scientific concepts, strategies, and technologies that will strengthen the capabilities of USG and international regimes (e.g., the IAEA and partner countries) to safeguard and secure nuclear material, commodities, and technologies from proliferation, improve nuclear safety systems, and enhance treaty verification. The Nondestructive Measurement Science and Technology Group focuses on research, development, and application of nondestructive assay systems, data acquisition technologies and analysis methods that support material control and accounting, operational safety for material processing, and nuclear material 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 16854 Overview: We are seeking an Instrument Hall Support (IHS) Group Leader. The Group Leader serves in a variety of roles designed to enable maximum operational efficiency for the neutron scattering instruments. The IHS Group Leader coordinates a team of rotating shift personnel to support all facets of operations assisting science staff and Users at both Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR). This position may require 12 hour rotating shift on an emergency relief basis. This position resides in the SNS Beamline Operations Section, in the Neutron Science Division. Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Develop a vision and implement a cohesive group for instrument operations support. Develop a strategy to ensure the success of the neutron research and user programs at SNS and HFIR and lead new and ongoing technical projects to position the group for future...

Requisition Id 16931 Overview: We are seeking a candidate with a background and experience in metals deposition sciences with applications to advanced manufacturing (AM) technologies such as powder bed metal additive manufacturing and directed energy deposition. The candidate will support senior technical staff in conducting high quality research on materials processed through AM with respect to process-property relationships. A background in processing and characterization of metals, and physical metallurgy is preferred. Strong communication and program management skills are required. This position resides in the Deposition Science and Technology Group at the Manufacturing Demonstration Facility (MDF) in the Manufacturing Sciences Division (MSD), Energy Sciences and Technology Directorate (ESTD) at Oak Ridge National Laboratory (ORNL). As part of our research team, you will be based at the Manufacturing Demonstration Facility (MDF) and work alongside a diverse team of...

Requisition Id 16926 Overview: The National Security Sciences Directorate (NSSD) at Oak Ridge National Laboratory (ORNL) seeks applicants for the position of Division Director for the Safeguards and Security Technology Division (SSTD). Reporting to the NSSD Associate Laboratory Director (ALD), the Division Director is responsible for leading and managing the Division's science and technology (S&T) capabilities, ensuring excellence in current mission execution while establishing and implementing a strategic vision for increased impact for national security. SSTD is comprised of multidisciplinary scientists, engineers, and mission-focused professionals who advance the scientific and technical foundations of nuclear safeguards and security. The Division develops innovative technologies and operational solutions that enable U.S. government agencies to strengthen the security and safeguards of nuclear and radiological materials in the U.S. and around the world, ultimately...

Requisition Id 16906 Overview: The Atmospheric Radiation Measurement Program's Data Center is seeking a Full Stack Developer who will focus on internal tools related to ARM triennial deliverables for a one-year term. This position resides in the Earth Science Database Engineering and Informatics Group in the Earth System Informatics Section, Environmental Science Division, Biological and Environmental Systems Sciences Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Independently develop web-based software applications. Ability to understand and develop the required functionality provided by requirements and mocks. Deliver ORNL's mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace - in how we treat one another, work together, and measure success. Basic Qualifications: Minimum of 5 years...

Requisition Id 16930 Overview: We are seeking a Postdoctoral Research Associate to advance the scientific validation of quantum simulations for quantum materials. This work directly supports the five-year mission of the ORNL Quantum Science Center (QSC) to establish a quantum-accelerated computing ecosystem for scientific applications. The successful candidate will develop, test, and evaluate the scientific applications by comparing results from quantum simulations directly with experimental measurements and classical simulations of quantum materials. This work will include benchmarking simulations by using reliable classical reference calculations and extending toward more challenging regimes. As part of our team, you will work closely with ORNL staff and external collaborators in quantum computing, condensed-matter physics, neutron scattering, applied mathematics, and scientific computing. This position resides within the Quantum Sensing and Computing Group in the...

Requisition Id 16872 Overview: The Work Management Division (WMD) within the Environment, Safety, Health and Quality (ESH&Q) Directorate at the Oak Ridge National Laboratory (ORNL) seeks to hire an exceptional and proven candidate as a Subcontractor Field Representative within the Integrated Research Operations Support Group. The successful candidate will be responsible for coordination and oversight of safety and other contract requirements for non-construction work activities performed on-site by subcontractors. This will ensure safe work execution in potentially hazardous areas and a high-security environment. Major Duties/ Responsibilities : Serve as liaison between the subcontractor/supplier performing work, and ORNL staff. Assist in development of Statements of Work, Hazard Analyses, work permits, and other documentation. Assist in reviewing purchase requests for on-site work that involves hazards. Coordinate site support (i.e. craft, subject matter experts,...

Requisition Id 16920 Overview: We are seeking an Experiment Project Engineer who will perform a diverse set of activities related to analysis, approval, and coordination of in-vessel and gamma irradiations at the Oak Ridge National Lab (ORNL) High Flux Isotope Reactor (HFIR). These will largely include experiments related to materials science and isotope production to support key ORNL objectives. In this role, you will interact and interface with the experiment design and analysis team(s) associated with proposed samples, quality assurance specialists, RRD support personnel, reactor operators, and ORNL transportation-related organizations. If needed in the future, acquisition of certificate for transport of hazardous materials may be required. This position resides in the Experiments and R&D Programs Group in the Nuclear Safety and Experiment Analysis Section of Research Reactors Division, part of the Neutron Sciences Directorate at Oak Ridge National Laboratory. Major...

Requisition Id 15880 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 outstanding Postdoctoral Research Associate with a strong background in condensed-matter physics and materials science and expertise in multiscale and multifidelity simulation techniques (ab initio methods at different fidelity, machine learning tight-binding, machine learning force fields, phase-field modeling, and/or kinetic monte carlo), as well as experience in developing and/or applying advanced AI/ML methods to accelerate materials discovery. The project will involve integrating such theory-informed AI-models for creating integrated autonomous experimental synthesis and characterization cross-facility agentic-AI platforms that allow real-time guidance and control of these multi-modal experiments for...

Requisition Id 16923 Overview: The Field Intelligence Operations Division invites candidates to apply to join the team as a Senior High Performance Computing (HPC) Engineer for Classified Computing to lead the design, implementation, and management of HPC systems within a classified environment. We are looking for candidates with extensive experience in HPC architecture, cluster management, and parallel computing, with a proven ability to work within highly secure and regulated environments. This role involves close collaboration with security teams, scientists, and IT leadership to ensure that the HPC infrastructure meets the stringent performance, security, and compliance requirements necessary for classified work. As part of our team, you will be joining a vibrant group of professionals eager to provide premier customer service to ensure people and information technology remain secure. The team is collaborative and strives to ensure security practices and procedures are...

Requisition Id 16922 Overview: We are seeking a Maintenance Engineer for the High Flux Isotope Reactor (HFIR) who will be responsible for maintaining the HFIR equipment and facilities to ensure safe, reliable, predictable, and efficient operations. This scope includes the HFIR maintenance program and processes; implementation of corrective, predictive, preventative, and modification work activities; work scheduling; and outage management. HFIR Maintenance Engineers work closely with members of the HFIR Beamline Operations Section, Science staff, Instrument Engineers, Reactor Operations personnel, and Melton Valley Complex Facility Supervisors. This position resides in the Maintenance Engineering Group in the HFIR Maintenance Section, Research Reactors Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Task Leading: Provides in-field oversight and technical direction. Coordinates with equipment owners, craft...

Requisition Id 16602 Overview: We are seeking a Postdoctoral Researcher who will focus on conducting, coordinating, and reporting complex research assignments related to advanced thermal and energy system technologies. This position resides in the Multifunctional Equipment Integration Group in the Thermal System Science Research Section, Buildings and Transportation Science Division, Energy Science and Technology Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: The successful candidate will be responsible for conducting, coordinating, and reporting complex research assignments related to advanced thermal and energy system technologies, including: Conduct experimental and analytical research to evaluate advanced thermal and energy technologies, including energy-efficient building systems, thermal-fluid processes, industrial heating applications, data center thermal management, and other emerging energy technologies. Develop and operate...

Requisition Id 16924 Overview: We are seeking an R&D Associate who will focus on data center thermal management technologies. This position resides in the Multifunctional Equipment Integration Group in the Thermal Systems Science Section, Buildings and Transportation Science Division, Energy Science and Technology Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Designing, developing, and conducting experiments related to data center thermal management technologies, phase change heat transfer processes, dehumidification systems, heat exchangers, and related systems. Analyzing experimental data. Publishing research in leading peer-reviewed journals and conferences. Collaborating with domain scientists and others to maintain a high level of scientific productivity. Ensuring compliance with environment, safety, health, and quality program requirements. Maintaining a strong commitment to the implementation and perpetuation of values...

Requisition Id 16921 Overview: We are seeking an Associate Maintenance Engineer for the High Flux Isotope Reactor (HFIR) who will be responsible for helping to maintain the HFIR equipment and facilities to ensure safe, reliable, predictable, and efficient operations. This scope includes the HFIR maintenance program and processes; implementation of corrective, predictive, preventative, and modification work activities; work scheduling; and outage management. HFIR Maintenance Engineers work closely with members of the HFIR Beamline Operations Section, Science staff, Instrument Engineers, Reactor Operations personnel, and Melton Valley Complex Facility Supervisors. This position resides in the Maintenance Engineering Group in the HFIR Maintenance Section, Research Reactors Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Task Leading: Assists with in-field oversight and technical direction. Coordinates with...

Requisition Id 16528 Overview: The Engineering Management Division (EMD) at the Oak Ridge National Laboratory (ORNL) seeks to hire a Design and Program engineer to support implementation of design and configuration management in the Research & Development (R&D) environment. This individual will also be responsible for management, implementation, and oversight of the site-wide glovebox lifecycle safety and integrity program. This position supports the management and implementation of ORNL's site-wide glovebox lifecycle safety and integrity program and assists R&D in safely defining their systems with engineering integrity and structured configuration management. Gloveboxes are typically used as an engineering control to protect workers from hazards and to control the atmosphere for work with air and moisture sensitive materials. R&D systems often incorporate engineered controls in their design to facilitate safe operation. This position will support R&D...

Requisition Id 16527 Overview: We are seeking a Technical Professional in the area of sustainable manufacturing with expertise in managing polymer characterization and processing laboratory space as well as interest or experience in materials formulation and materials processing/manufacturing. As part of this role, the candidate will be tasked to lead the management, development, maintenance, and repair of a variety of characterization equipment as well as the management of project timelines, execution of project tasks, and reporting of research findings. The ideal candidate should be comfortable working across interdisciplinary teams of people with multiple areas of expertise and designing experiments to answer specific research questions. The candidate will need to have familiarity with different types of materials including polymers and will need to be comfortable in chemical laboratory spaces. The candidate should be self-driven and have a vested interest in keeping...

Requisition Id 16837 Overview: We are seeking a Process Systems Engineer to provide process design and system engineering support to develop, design, implement and provide operations support for a variety of process systems supported by the Target Development Engineering and Operations Section. This position resides in the Target Engineering Group in the Neutron Technologies Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Our group is responsible for activities supporting both new designs (e.g, Proton Power Upgrade Project, Heavy Water Recombination) and modifications to existing technical component utility systems which support neutron production and neutron beam instrument systems. This position reports to the Target Engineering Group Leader in the Target Development, Engineering and Operations Section. Major Duties/Responsibilities: Support fabrication, commissioning, operation, troubleshooting and maintenance of the unique complex water...

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 16723 Overview: We are seeking a Postdoctoral Research Associate with expertise in artificial intelligence (AI) and machine learning (ML) for multiscale physical systems. This position resides in the Computational Sciences and Engineering Division ( CSED ) at Oak Ridge National Laboratory (ORNL). CSED focuses on transdisciplinary computational science and analytics at scale to enable scientific discovery across the physical sciences, engineered systems, and biomedicine and health. It provides foundations and advances in quantum information sciences to enable quantum computers, devices, and networked systems. It develops community applications, data assets, and technologies and provides assurance to build knowledge and impact in novel, crosscut-science outcomes. The selected candidate will join the Multiscale Materials (MsM) group within the Advanced Computing Methods for Physical Sciences Section in CSED. The MsM group is dedicated to delivering multiscale,...