Oak Ridge National Laboratory

Requisition Id 16736 Overview: We are seeking a Postdoctoral Research Associate who will work with a multi-disciplinary group of experts in economics, engineering, software development, and building energy modeling on the economic and policy aspects of residential building retrofitting. The candidate will support econometric evaluation of the WAP implementation expectations and results. To accomplish the task, the candidate will work directly with WAP and software experts to identify, gather, curate, and analyze novel datasets not previously available to researchers. This position resides in the Integrated Building Deployment and Analysis group in the Buildings Materials & System Integration Section, Building and Transportation Science Division, Energy Science and Technology Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Interacting with a team of experts at ORNL on projects evaluating the U.S. Department of Energy Weatherization...

Requisition Id 16540 Overview: We are seeking a Postdoctoral Research Associate who will develop and apply computational methods based on electronic structure theory and artificial intelligence approaches with emphasis on electronic properties of a range of quantum materials important to the DOE mission, including the materials classes described below. Research efforts will include application of Quantum Monte Carlo (QMCPACK, PYQMC) density functional theory (e.g. QE, VASP, PYSCF) and associated models to describe various properties of DOE-relevant quantum materials. The Materials Theory Group has a background in using the most advanced ab-initio methods to examine electronic, topological and magnetic properties of advanced materials, their defects and their interphases. The incumbent will have opportunities to develop research methodologies as well as collaborate with experimental groups at Oak Ridge National Laboratory (ORNL). This position resides in the Materials Theory...

Requisition Id 15937 Overview: We are seeking an AI Security Systems Architect to design and develop state-of-the-art systems for security testing and evaluation of artificial intelligence technologies. This role involves creating scalable infrastructure to support cutting-edge adversarial testing methodologies, such as red team vs. blue team exercises and AI-on-AI evaluation frameworks. The ideal candidate will bring a strong foundation in systems architecture, a working knowledge of cluster computing and scaling, and a passion for advancing the security of AI systems under real-world and simulated conditions. This position is critical for ensuring that AI systems remain resilient, robust, and secure against evolving threats. This person will play a key role within ORNL's Center for AI Security Research (CAISER) where he or she will work to advance the state-of-the-art in Automated, Agentic workflows for AI Security research, testing and evaluation. Key Responsibilities:...

Requisition Id 16724 Overview: The Executive Communications Office within the Communications and Community Engagement Directorate at Oak Ridge National Laboratory (ORNL) seeks an experienced communications professional and content creator to support the Partnerships Office with strategic communications, digital storytelling, and integrated marketing initiatives. This position will play a key role in advancing ORNL's technology transfer, innovation, and economic development mission through compelling written and digital content that engages a wide range of audiences. The successful candidate will be an agile writer and communicator who is equally comfortable developing written collateral, as well as managing digital communications. This role requires strong project management skills, creative storytelling ability, and experience coordinating communications initiatives from concept through execution. The ideal candidate will be highly collaborative, capable of working across...

Requisition Id 16734 Overview: We are seeking Research Associates to advance, implement, and evaluate scalable quantum algorithms for material simulation. This work directly supports the 5-year mission of the ORNL Quantum Science Center (QSC) to establish a quantum-accelerated computing ecosystem for scientific applications. As part of our team you will work closely with ORNL staff and external collaborators on some or all of the following tasks: developing quantum algorithms for simulation of quantum spin systems; programming such algorithms in an emerging cohesive software ecosystem; benchmarking quantum simulations on early-fault tolerant quantum processors and on high performance computing-based emulators; and quantitatively comparing quantum computational results against experimental measurements such as inelastic neutron scattering or thermal transport. This position resides within the Quantum Computational Science Group in the Computational Sciences and Engineering...

Requisition Id 16726 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 Cyber Resilience and Intelligence Division in the National Security Sciences Directorate (NSSD) at ORNL is seeking a senior scientist to serve as the Group Leader (GL) for the Embedded Systems Security (ESS) group. The GL will develop, manage, provide leadership for, and conduct research in NSSD's embedded systems security research and development (R&D)...

Requisition Id 16517 Overview: We are seeking a HFIR Instrument Support - Electrical professional to support the High Flux Isotope Reactor (HFIR) neutron scattering instruments and associated infrastructure. This role will focus on maintaining and improving electrical equipment and components to ensure safe, reliable, predictable, and efficient operations of HFIR Beamline Operations (HBO). This position will produce a diverse portfolio of electrical engineering and technical support activities, including electrical system design, installation oversight, maintenance coordination, troubleshooting, independent judgment. task leading, and document development. Work may include power distribution systems, electrical design services for beamline instruments and conventional facilities, and experimental equipment. This position resides in the HFIR Instrument Support Group in the HFIR Beamline Operations Section, Neutron Scattering Division, Neutron Sciences Directorate at Oak Ridge...

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 16727 Overview: We are seeking an R&D Associate Staff Member to support applied spectroscopy, sensor development, and process-monitoring research within the Isotope Applications Research Group (IARG) at Oak Ridge National Laboratory (ORNL). The successful candidate will develop and deploy optical spectroscopy-based analytical methods, automated sampling approaches, and integrated instrumentation for real-time or near-real-time measurements in complex chemical, isotope-production, and nuclear-relevant processing environments. This position will support program needs in radionuclide production, separations, materials/process monitoring, and related test systems, with opportunities to contribute to technical reporting, publications, proposals, and cross-disciplinary collaborations. IARG is a multidisciplinary team dedicated to advancing the production, exploration of fundamental properties, and practical applications of radioisotopes produced at ORNL....

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,...

Requisition Id 16570 Overview: The Grid Transients & Advanced Modeling Group in the Electrification and Energy Infrastructure Division (EEID) within the Energy Science and Technology Directorate (ESTD) at Oak Ridge National Laboratory (ORNL) is seeking a Research Associate to perform R&D in the one or more of the following areas: development of EMT simulation software, bulk power systems electromagnetic transient (EMT) simulations, high-fidelity dynamic and transient power electronics resources modeling, explore different intelligence algorithms to enhance ease of usage of simulations, and different applications of EMT simulations. Selection will be based on qualifications, relevant experience, skills, and education. You should be highly self-motivated and independent in conducting research under general guidance and are expected to prepare manuscripts for scientific publication and present the work to sponsors and at conferences. The group supports the energy...

Requisition Id 16695 Overview: As a Senior AI Architect at Oak Ridge National Laboratory (ORNL), you will operate at the intersection of advanced machine learning, software and systems architecture, and ORNL's enterprise and high-performance computing (HPC) environments. The role is typically less about building individual models and more about designing, integrating, and governing end-to-end AI systems that can be deployed and sustained across research programs and mission operations. This includes architecting solutions that use large language models (LLMs), multimodal and foundation models, and hybrid deployments spanning on-premises HPC resources, controlled networks, and approved cloud services-ensuring these systems meet ORNL's requirements for scale, security, reliability, and scientific reproducibility. In a practical sense, the Senior AI Architect defines reference architectures for "AI at ORNL," including patterns for data ingestion and curation, training and...

Requisition Id 16217 Overview: The Multiscale Biomedical Systems Group within the Advanced Computing in Health (ACH) section of the Computational Sciences and Engineering Division (CSED) at Oak Ridge National Laboratory (ORNL) seeks a motivated Postdoctoral Research Associate. This position primarily focuses on large-scale molecular dynamics (MD) simulations and AI-integrated multiscale modeling of complex biosystems. The successful candidate will also contribute to efforts that bridge molecular, cellular, and systems-level modeling, with growing relevance to emerging paradigms such as whole-cell modeling and networked biological systems. You will work at the intersection of high-performance computing (HPC), computational biophysics, and machine learning, leveraging leadership-class computing resources and collaborating across ORNL, federal agencies, and academic partners. Key Responsibilities: Develop and apply scalable molecular dynamics (MD) and multiscale simulation...

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 16730 Overview: The Manufacturing Process Engineering Group within the Enrichment Science and Engineering Division (ESED) seeks applications for a Mechanical Process Engineer. The Enrichment Science and Engineering Division serves the nation in two critical areas: advancing enrichment technologies and exploring enriched stable isotope production and applications. The division leverages an elite staff of scientists and engineers with the world-leading capabilities of Oak Ridge National Laboratory to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments. This position reports to the Manufacturing Process Engineering Group Leader. Major Duties and Responsibilities : The selected candidate will be responsible for supporting the mechanical systems development and deployment of prototypes with process &quality control engineering of fabrication, assembly and inspection techniques. The...

Requisition Id 16568 Overview: We're hiring an AI Software Engineer who has AI/ML development and deployment skills! The position and its focus are to design, develop and move to production AI/ML tools and analytics that enhance and evolve business operations and scientific decision-making capability and related activities at ORNL. Qualified applicants will have a solid foundation of Generative AI and Machine Learning skills. This position resides in the AI Operations Program office within the Application Development Division of the Information Technology Services Directorate. Our AI/ML models are heavily centered on Microsoft Azure and related AI cloud technologies with High Performance Computing (HPC) for on premise AI environments and Azure, AWS, and GCP for off premise environments. Major Duties/Responsibilities: Development and support of models utilizing AI/ML and Microsoft Azure, Google Vertex AI, AWS Bedrock. Collaboration with business and classified business...

Requisition Id 16648 Overview: We are seeking an Export Control Analyst who will focus on export control responsibility for analyzing and issuing technical determinations, compliance rulings, and managing lifecycle licensing responsibilities. This position's responsibilities include technical classification of technologies/items, establishing export compliance actions and supporting the export control needs of international programs and initiatives as required under federal laws, regulations, and Department of Energy (DOE) directives. This position resides in the Export Control Group in the Laboratory Protection Division within the Facilities & Operations Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Evaluating and analyzing ORNL programs and initiatives, facilities, Cooperative Research and Development Agreements, Strategic Partnership Agreements, Intellectual Property Reviews, Software, Leadership Computing Projects,...

Requisition Id 16703 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. We are seeking a Postdoctoral Research Associate who will support the Quantum Sensing and Computing Group in the Computational Science and Engineering Division (CSED), Computing and Computational Sciences Directorate (CCSD) at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Participate in new and ongoing research on quantum integrated...

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 16711 Overview: We are seeking a Structural Engineer who will focus on structural engineering and analytical support to the US ITER Project Office at Oak Ridge National Laboratory (ORNL) through the final design of the Ion Cyclotron Heating (ICH) system, Electron Cyclotron Heating (ECH) system, Vacuum Systems (VAS), and other systems as required. In addition to core structural analysis responsibilities, the role may include the opportunity to serve as a Technical Approver, leading or supporting the procurement of structural supports and associated hardware, from technical requirements definition through vendor oversight and Title III execution. Major Duties/Responsibilities: Work with technical managers, engineers, designers, and fabrication vendors to design and analyze supports and equipment hardware associated with the US ITER Project Office. Perform, develop, and modify complex structural support analyses involving carbon steel, stainless steel, and...