Oak Ridge National Laboratory

Requisition Id 16785 Overview: We are hiring a DevOps Engineering Support Team Leader in the Research IT Infrastructure Group of the Research Computing Support Division in the Information Technology Services Directorate! This leadership position resides onsite in Oak Ridge, TN. This position leads and supports the facilitation of DevOps for R&D Projects with the DevOps team directly reporting to the Team Lead! You'll hold regular meetings with the customers (those providing funding) and the existing business relationship managers to ensure IT needs are being met, and to balance and manage project workloads as they ramp up and down. The Team Lead provides metrics, strategy, and stays ahead of existing DevOps trends in the industry. We work as a team to provide deployment, automation, monitoring, and management tool infrastructure for researchers and their projects. DevOps also advocates and promotes best practices to researchers who develop code as a part of their project....

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 17043 Overview: The Materials & Chemistry Group (MCG) within the Nuclear Nonproliferation Division (NND), a part of the National Security Sciences Directorate (NSSD), is seeking a Postdoctoral Researcher in the fields of uranium chemistry and nuclear forensics. The role entails performing and leading cutting-edge research on nuclear fuel cycle-related materials with a focus on solid materials within the uranium fuel cycle. Research topic areas will be related to understanding the effects of material processing on chemical and physical observables and translating this understanding into nuclear forensics applications. The Materials & Chemistry Group focuses on fundamental chemical and physical science related to nuclear fuel cycle materials in support of national security objectives. MCG represents expertise in nuclear materials synthesis and analysis, deployment of advanced analytical methods including crystallography, imaging, spectroscopy, physical...

Requisition Id 17053 Overview: Oak Ridge National Laboratory (ORNL) is committed to fostering open communication and ensuring the prompt identification, review, and resolution of employee concerns. The Employee Concerns Program (ECP) provides an independent, objective, and confidential process for employees and other covered individuals to raise concerns without fear of reprisal. The program also supports compliance with DOE Order 442.1B, Employee Concerns Program, including applicable subcontractor requirements. Reporting to the Employee Concerns Coordinator, the Employee Concerns Investigator supports the effective administration of the ECP through case management, fact-finding, investigative analysis, reporting, training, outreach, and process improvement. This position requires a high level of confidentiality, sound judgment, discretion, and attention to detail, as well as the ability to manage sensitive matters in a professional and impartial manner. Major...

Requisition Id 17051 Overview: Oak Ridge National Laboratory (ORNL) is currently seeking qualified applicants to serve as a Senior Network Engineer supporting unclassified operations. The successful candidate will possess advanced knowledge of network engineering, firewall architecture, network security policy, enterprise network design, and the interactions among complex information systems. This position will emphasize the engineering, architecture, implementation, and lifecycle management of enterprise firewall services. The candidate will collaborate with teams across the laboratory, including Enterprise Networking, Information Technology, the Classification Office, Cybersecurity, Laboratory Enterprise Risk, Internal Audit, and other organizations as appropriate. The Senior Network Engineer will assist Enterprise Networking in developing secure, reliable, and scalable solutions that support the laboratory's long-term growth. The engineer will evaluate complex technical...

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 17038 Overview: We are seeking a Postdoctoral Research Associate with a strong background in organic synthesis and coordination chemistry to develop novel chelation platforms for s-, p- and f-block radioactive ions of interest in nuclear medicine. This position resides in the Chemical Separations Group in the Chemical Sciences Division, Physical Sciences Directorate (PSD) at Oak Ridge National Laboratory (ORNL), under the mentorship of Dr. Nikki Thiele. As part of the Chemical Separations Group, you will have the opportunity to work with a multidisciplinary team comprising specialists in organic and inorganic synthesis, coordination chemistry, thermodynamics, laser spectroscopy, materials characterization, chemical separations, computational chemistry, and nuclear chemistry. Our cold labs house state-of-the-art instruments including a triple-quad ICP mass spectrometer, single-crystal X-ray diffractometer, potentiometric titrators, and ultrafast laser systems....

Requisition Id 17025 Overview: The Electrical, Instrumentation, and Controls Engineering (EICE) group within the Enrichment Science and Engineering Division (ESED) seeks a Senior Instrumentation and Control (I&C) Systems Engineer to develop LabVIEW-based data acquisition, monitoring, and control solutions for enrichment systems and testbeds. ESED serves as the national steward for gas-centrifuge technology and the expansion of the nation's stable-isotope production capabilities. The EI&C group applies modern hardware and software engineering methods to design, integrate, and sustain reliable, high-performance solutions that advance enrichment technologies and isotope-production systems. The selected candidate will play a key role in designing, fabricating, integrating, and commissioning mission essential instrumentation and control software components, while collaborating closely with multidisciplinary engineering teams to ensure system performance, safety, and...

Requisition Id 17045 Overview: Oak Ridge National Laboratory (ORNL) 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 a proactive and organized Manufacturing Document Control Analyst. The Manufacturing Document Control Analyst shall collect all completed production orders from the manufacturing spaces, organize the completed build packages, audit build packages for completion and accuracy, and store documents in accordance with division document retention requirements. The selected candidate will also be responsible for managing manufacturing documentation processes and records to ensure efficiency and compliance. This position resides in the Systems Process and Assurance Section and will report to the Document Control and Records Management (DCRM) Group Leader. ESED serves the nation in two critical areas: advancing...

Requisition Id 17026 Overview: We are seeking a Technician - Radioisotope Processing 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 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 (DOE) and...

Requisition Id 17035 Overview: The Integrated Operations Support Division (IOSD) at Oak Ridge National Laboratory (ORNL) seeks a Geographic Information Systems (GIS) Specialist to serve as the functional system administrator for ArcGIS Enterprise, and partners with IT staff and data owners across ORNL. The GIS Specialist is the primary point of contact for the enterprise GIS platform, fostering customer relationships by proactively identifying, implementing, and communicating continuous improvement efforts. The GIS Specialist will build awareness of existing GIS capabilities, develop, and implement new tools and workflows, and support the vision, roadmap, standards, and governance for GIS across the Directorate. Supported functional areas include site, facility, and asset management, utilities distribution, logistics, environmental safety & health, strategic planning, construction, engineering, emergency management, and security. Major Duties/Responsibilities: Serve...

Requisition Id 17032 Overview: The Controls Integration Group at the Spallation Neutron Source (SNS) is seeking an entry level Control System Software Engineer who will focus on control system applications, system development and operations support. This position is part of the Controls Integration Group within the Control Systems Section, Research Accelerator Division of the Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). The group is responsible for maintaining and improving fully integrated control systems for the SNS Accelerator to ensure safe, high-reliability beam delivery to the target. These systems typically utilize PLC, VME, or MicroTCA hardware, integrated using the Experimental Physics and Industrial Control System (EPICS) framework. This position reports to the Controls Integration Group Leader. The group is currently focused on modernizing the control system environment. Ongoing upgrade projects include replacing legacy equipment with...

Requisition Id 17036 Overview: The Field Intelligence Operations Division (FIOD), of the National Security Sciences Directorate (NSSD), 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...

Requisition Id 17046 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 a Logistics Technician with experience in the areas of material management and inventory control within a manufacturing environment to support enrichment technology programs. This position requires strong knowledge of warehousing processes, configuration management principles, quality assurance, and ERP (Enterprise Resource Planning) related system modules and how they provide an industry-focused solution to organization requirements. This position is within the Plasma Enrichment Process Management Group, which is in the Enrichment Science and Engineering Division (ESED) at Oak Ridge National Laboratory (ORNL). The Enrichment Science and Engineering Division serves the nation in two critical areas: advancing...

Requisition Id 17022 Overview: Oak Ridge National Laboratory (ORNL) is the world's premier research institution, empowering leaders and teams to pursue breakthroughs in an environment marked by operational excellence and engagement with the communities where we live and work. ORNL invites you to apply to its Distinguished Staff Fellowship (DSF) Program. This program recognizes outstanding early-career scientists and engineers who have excelled in their academic and professional subject areas and show promise as future science leaders. The program offers highly sought-after fellowships in various research fields, including biology and the environment, clean energy, fusion and fission, isotope science, materials science, national security, neutron science, and supercomputing. Applicants selected to become DSFs will be named to one of three fellowships based on their scientific background. The fellowships honor three prominent scientists who made a Big Science impact at ORNL....

Requisition Id 16990 Overview: The Field Intelligence Operations Division (FIOD) of the National Security Directorate (NSSD) is seeking a highly skilled, cutting-edge Senior Linux Engineer to lead the design, evolution, and modernization of secure computing environments supporting some of the nation's most consequential national security, intelligence, and scientific missions. This is more than a traditional Linux engineering role. You will operate at the intersection of advanced Linux architecture, cybersecurity, HPC, AI/ML, and classified computing, leading complex technical efforts and shaping secure, scalable, and resilient infrastructure where performance and reliability are mission critical. As a senior technical contributor, you will help set technical direction, influence architecture, introduce emerging technologies, and solve the most challenging infrastructure problems across multiple security domains. You will collaborate with engineers, cybersecurity...

Requisition Id 16979 Overview: Oak Ridge National Laboratory (ORNL) delivers scientific discoveries and technical breakthroughs needed to provide solutions in energy and national security and drive economic benefits for the nation. Our partnerships with U.S. Department of Energy (DOE) laboratories, universities, and industry enable us to accelerate science and innovation. The Office of Research Education (ORE) at Oak Ridge National Laboratory seeks to hire a Senior Administrative Assistant to provide full-time, dedicated administrative and project support exclusively to the Director of the Office of Research Education. This role offers an opportunity to provide dedicated, full-time administrative and project support to the Director of the Office of Research Education, ensuring seamless execution of priorities and initiatives in a dynamic and fast-paced environment. Major Duties/Responsibilities: Primary Point-of-Contact (POC): Serve as the dedicated administrative contact...

Requisition Id 16991 Overview: The Field Intelligence Operations Division (FIOD) of the National Security Directorate (NSSD) is seeking a Senior Engineer for a Classified High Performance Computing (HPC) Storage & Infrastructure role, helping shape the secure, high-performance computing capabilities behind some of the nation's most consequential national security and scientific missions. This is an opportunity for an accomplished technical professional who wants to remain deeply engaged in engineering while influencing architecture, technical strategy, and the future of classified HPC infrastructure. You will lead and support initiatives that advance the security, performance, scalability, functionality, and reliability of storage and supporting systems across multiple classified HPC environments. As a senior technical advisor and subject matter expert, you will tackle complex infrastructure challenges, translate demanding mission and scientific requirements into...

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 17002 Overview: We are seeking two Computational Instrument Scientists who will focus on developing software analysis tools for the diffraction instruments. These positions reside in the Powder and the Single Crystal Diffraction Groups in the Diffraction Section, Neutron Scattering Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). Applications are sought from highly creative and motivated individuals with demonstrated skills/experience in method development who will join the interdisciplinary team of instrument scientists that support the diffraction instruments at the High Flux Isotope Reactor (HFIR) and at the Spallation Neutron Source (SNS). Additional information and specifications for these instruments may be found on the following ORNL Neutron Sciences website: https://neutrons.ornl.gov/suites/diffraction As part of our research team, you will emphasize developing software analysis tools for multi-dimensional data...