Oak Ridge National Laboratory

Requisition Id 16223 Overview: We are seeking a Laboratory Technician who will focus on providing technical support and oversight of scientific laboratory spaces for neutron scattering researchers and technicians. The laboratory technician will enable researchers to safely access lab space and equipment to benefit neutron scattering experiments. Additionally, the qualified candidate will support sample management functions within the division to enable researchers to perform experiments. This position resides in the Labs and Soft Matter Group in the Sample Environment and Labs Section, Neutron Scattering Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Under general supervision provide technical support for the Neutron Scattering Division (NSD) User Laboratories and sample management. Performs basic laboratory housekeeping, ordering and organization. Interacts constantly with internal and external...

Requisition Id 16262 Overview: We are seeking a postdoctoral researcher to work at the intersection of tensor networks, quantum algorithms, scientific computing, topological physics, and quantum hardware. As part of our team, you will perform research to develop new scalable quantum simulation algorithms, based on multi-linear representation theory, and apply them to real world applications spanning qubit engineering to quantum algorithmic analysis to applications across the physical sciences (condensed-matter or high energy physics, data science). You will Interpret, report, and present research concepts and results to national. This position resides within the Quantum Computational Science Group in the Computational Sciences and Engineering Division (CSED) at Oak Ridge National Laboratory (ORNL). CSED performs transdisciplinary computational science and analytics at scale to produce advancements in physical sciences, engineering, and biomedicine and health. The Quantum...

Requisition Id 16239 Overview: We are seeking a Senior Procurement Officer to provide subcontract management support for a variety of needs (research, construction, high performance computing, complex equipment, etc.). This position resides in the Contracts Division in the Business Services Directorate at Oak Ridge National Laboratory (ORNL). ORNL is managed by UT-Battelle, LLC. Major Duties/Responsibilities: Provide subcontracting/procurement support for the research mission of ORNL. Multiple opportunities exist with this job posting, with the candidate possibly supporting large construction projects, Isotopes research, National Securities, High Performance Computing, etc. In a hybrid capacity, Supporting project teams in all procurement related activities, including providing business advice, creating and implementing complex contracting solutions, and supporting or leading meetings (both on-site and virtually). Awarding and managing special and unique subcontracts,...

Requisition Id 16264 Overview: We are seeking a Computational Fluid Dynamics (CFD) modeler to apply modeling tools to simulate the complex behavior of fluids at all scales to support isotope enrichment. A successful candidate will collaborate with computer scientists and experimental facilities to develop verified models focused on enrichment technologies. This position resides in the Gas Testing & Simulation Group in the Centrifuge Science Section, Enrichment Science and Engineering Division, Isotope Science and Enrichment Directorate, at Oak Ridge National Laboratory (ORNL). This group leads the application of machine and cascade theory to develop, simulate, execute, and interpret testing evolutions for discovery, performance evaluation, and optimization of enrichment systems. As part of our team, you will provide research and development (R&D) support to strategically advance science and technology of prototype enrichment devices for processing both uranium-bearing...

Requisition Id 16246 Overview: We are seeking a Protection Systems Engineer who will focus on implementing and maintaining high-reliability electronic safety interlock systems. SNS Protection Systems are electronic safety interlock systems based on Programmable Logic Controller (PLC) technology. These systems protect personnel from unique hazards, mainly prompt ionizing radiation and oxygen deficiency hazards arising from SNS operations. The PSG manages all life-cycle phases of the safety interlock equipment used in Personnel Protection Systems (PPS) for the accelerator, target, instruments, and research test enclosures at SNS. Their duties include maintaining documentation, ensuring operation, and performing maintenance after these systems are active. This involves generating system documentation, PLC programming, creating procedures, performing annual certification tests, and addressing any unexpected issues or failures. As part of the PSG, you will collaborate with...

Requisition Id 16260 Overview: The Biodiversity and Ecosystem Health group within the Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL), is seeking an aquatic ecologist focused on fisheries and data science to support research on the interactions between energy infrastructure, especially hydropower systems, and aquatic ecosystems. This position focuses on applying advanced geospatial, statistical, and quantitative approaches to fisheries, hydrological, and ecological data to improve understanding of how hydropower operations influence fish populations, movement, survival, and habitat use. The successful candidate will work within a multidisciplinary team of biologists, hydrologists, engineers, and data scientists, contributing to nationally relevant research that informs sustainable hydropower development, environmental compliance, and energy-ecosystem decision making. Environmental Sciences Division is an interdisciplinary research and development...

Requisition Id 15983 Overview: We are seeking an R&D Associate who will focus on developing and applying advanced signal processing, wireless communications, and AI techniques to RF sensing, drone detection, and power grid waveform analytics. You will apply methods traditionally used in wireless communications and signal intelligence - including time-frequency analysis, interference modeling, multi-sensor fusion, and propagation modeling - to develop AI-enabled detection, classification, and triangulation algorithms for critical energy infrastructure applications. This position resides within the Grid Communications and Security (GCS) Group in the Energy Sensing, Analytics, and Communications (ESAC) Section, Electrification and Energy Infrastructure Division (EEID) at Oak Ridge National Laboratory. Major Duties/Responsibilities: Develop and implement advanced time-frequency and spectral analysis techniques for high-frequency voltage/current waveform data Apply...

Requisition Id 16263 Overview: We are seeking a group leader who will focus on AI/ML methods/application, image/signal processing, and sensor systems. This position resides in the Multimodal Sensor Analytics (MSA) group in the Energy Sensing Analytics and Communications (ESAC) section, Electrical and Energy Infrastructures Division (EEID), Energy Science and Technology Directorate (ESTD), at Oak Ridge National Laboratory (ORNL). The MSA Group Leader will be responsible for leading research in AI/ML for sensor analytics systems, work with the section head to develop strategies for maintaining and growing technical application spaces and leading a group of 8-12 researchers within MSA. Special emphasis and focus is towards the research, development, and demonstration of advanced image/signal processing, machine learning and artificial intelligence techniques applied toward AI security, biometrics, computational imaging, and energy infrastructures. 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...

Requisition Id 16253 Overview: The Oak Ridge National Laboratory (ORNL) seeks a HEPA/Ventilation Inspector who will focus on HEPA filter aerosol leak testing for nuclear and non-nuclear applications, in-place Carbon Adsorber-halide leak testing, air flow inspections of industrial and laboratory local exhaust ventilation (LEV), and negative air machines. This position resides within the Systems & Process Inspections Group in the Fabrication, Instrumentation, & Inspection Division within the Facilities and Operations Directorate. The successful candidate for this position will coordinate with engineers, craft workers and other support personnel in task preparation and planning to ensure that work is conducted in a safe, secure, compliant and efficient manner. Inspectors work closely with building occupants, facility management personnel and system owners to ensure that the inspection needs of research and support organizations are met promptly and cost effectively....

Requisition Id 16261 Overview: We are seeking a Postdoctoral Research Associate who will focus on the physics and materials science of PLD-synthesized twisted oxide and hybrid quantum materials. This position resides in the Neutron & X-Ray Scattering, & Thermophysics group in the Materials Analysis and Interface Science Section, Materials Science and Technology Division, Physical Sciences Directorate at Oak Ridge National Laboratory (ORNL). As part of our research team, you will work in a highly collaborative environment with a broad spectrum of expertise, including epitaxial synthesis, twisted membrane fabrication, quantum transport, neutron/x-ray scattering, and spectroscopy. You will perform cutting-edge research on correlated quantum heterostructures, including epitaxial synthesis by pulsed laser deposition, characterization, analyzing data, and writing papers. Major Duties/Responsibilities: Conduct epitaxial synthesis of complex-oxide thin films and...

Requisition Id 16244 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. The Fusion and Fission Energy Sciences Directorate (FFESD) at Oak Ridge National Laboratory (ORNL) is seeking a highly skilled and motivated individual to join our team as a Project Manager. The FFESD team addresses compelling challenges in fission and fusion energy systems, enabling ORNL to pursue national priorities in fusion energy and current and advanced...

Requisition Id 16164 Overview: We are seeking a Maintenance Engineer for the High Flux Isotope Reactor (HFIR), primarily supporting the Cold Source upgrade project. HFIR Maintenance Engineers are 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 and Cold Source 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: Maintenance...

Requisition Id 16254 Overview: Do you have a passion for applying AI methods for accelerating scientific discoveries and an ability to think outside of the box in a collaborative and open environment? If so, the Oak Ridge National Laboratory's Learning Systems Group within the Data and Artificial Intelligence Systems section invites you to apply to our new postdoctoral research associate position in AI for Science. We are seeking a highly motivated Postdoctoral Research Associate to conduct cutting-edge research in artificial intelligence for scientific discovery within a national laboratory environment. The successful candidate will develop and apply advanced machine learning techniques-including multimodal AI, computer vision, and large language models-to complex scientific and engineering challenges. This role emphasizes interdisciplinary collaboration, scalable data systems, and impactful research aligned with mission-driven science. As a postdoctoral researcher, you will...

Requisition Id 16247 Overview: We are seeking an experienced profession to lead ACCEL ( A ccelerating C ompetitiveness through C omputational E xce L lence), an industrial partnerships program within the National Center for Computational Sciences (NCCS). This position can be on-site, remote, or hybrid. Selection will be based on qualifications, relevant experience, skills, and education. NCCS provides state-of-the-art computational and data science infrastructure coupled with dedicated technical and scientific professionals tackling large-scale S&T challenges across a broad range of scientific domains for accelerating scientific discovery and engineering advances. NCCS hosts the Oak Ridge Leadership Computing Facility, one of DOE's National User Facilities which operates Frontier, the nation's first exascale supercomputer. Purpose: The Program Director of ACCEL will collaborate across other sections in the division and directorate to strategically advance the ACCEL...

Requisition Id 16212 Overview: Oak Ridge National Laboratory (ORNL) is seeking a Digital Media Specialist to support the Biological and Environmental Systems Science Directorate (BESSD). This position resides within the Digital Communications Group in the Communications and Community Engagement Directorate and works in close partnership with BESSD communicators, researchers, and leadership to advance the directorate's digital presence. The selected candidate will support the planning, creation, and execution of digital content across ORNL's web and social platforms, with a focus on highlighting BESSD research breakthroughs and staff achievements. Responsibilities include developing short-form video, contributing to web content, and supporting social media execution. The role requires strong storytelling skills, attention to detail, and the ability to translate complex scientific topics into clear, audience-focused digital products. BESSD advances understanding of natural...

Requisition Id 16210 Annual Salary Range:$$115,000.00 -$$150,000.00 Work-Site Type: Remote ORNL offers a flexible work environment that supports both the organization and the employee. In addition, this position is considered remote-eligible for ORNL in pre-approved locations. Remote-eligibility is not a continued guarantee and could be subject to change based on evolving organizational needs. Note about pay range: Please note that the pay range information is a general guideline only. Many factors are taken into consideration when setting starting pay. Salary for this position will be commensurate with the final candidate's qualifications and experience, including skills, knowledge, relevant education, certifications, plus also aligned with the internal peer group. It is not typical for an individual to be offered a salary at or near the top of the range for a position. Link to benefits. https://jobs.ornl.gov/content/Benefits/?locale=en_US Overview: The Information...

Requisition Id 16237 Overview: We are seeking a Nuclear Mechanical Engineer to join the Systems Engineering (SE) Group within the Research Reactors Division (RRD) at Oak Ridge National Lab (ORNL). Our group is responsible for the High Flux Isotope Reactor (HFIR) configuration management program. The SE Group also provides technical support to operations and maintenance and performs systems analysis. In this role, you will perform design engineering and support manufacturing and fabrication of reactor core components, fuel elements, control rods and plates, etc. You will also handle maintaining overall cognizance of assigned HFIR structures, systems, and components (SSCs) and provide systems engineering support for operations and maintenance. Major Duties/Responsibilities: Support engineering design work for new and upgraded HFIR structures, systems, and components. Implements modifications in accordance with RRD configuration control processes. Perform...

Requisition Id 16234 Overview: Oak Ridge National Laboratory (ORNL) is seeking a Production Engineer for our world class radioisotope production program. Supporting the largest radioisotope production and research portfolio within the Department of Energy (DOE) Office of Science for Isotope R&D and Production, this position will grant you the opportunity to work with rare nuclear materials and ensure the safe and effective execution of nuclear materials processing within nuclear and radiological facilities. This position resides within the Isotope Processing and Manufacturing Division (IPMD) at Oak Ridge National Laboratory (ORNL). IPMD is focused on the reliable delivery of radioisotope products to reach quality standards. This work is performed within the unique facilities at ORNL, including the High Flux Isotope Reactor (HFIR), and several radiological and nuclear facilities throughout the ORNL campus containing shielded hot cells and gloveboxes. The Production...

Requisition Id 16232 Overview: The Grid Systems Architecture (GSA) Group at Oak Ridge National Laboratory (ORNL) is actively seeking applicants for a temporary full-time Power Electronics Research Assistant position. This role focuses on advancing cutting-edge power electronic systems and their integration into the modern electric grid. You will develop innovative power electronic converters and control solutions and validate them through real-time modeling and simulation. The position requires a strong understanding of power electronic system requirements, from component-level design to full system integration, as well as embedded controller development. Experience in modeling converter topologies and distribution grids, developing control algorithms, and implementing controller code is expected. Major Duties/Responsibilities: Conduct R&D projects and help the expansion of R&D to take advantage of our multidisciplinary capabilities, multimodal strengths, and...