31 security clearance jobs found in Oak Ridge, TN

Requisition Id 15762 Overview: Oak Ridge National Laboratory (ORNL) is seeking a dynamic and mission-driven Managing Director for CAISER to accelerate the adoption and impact of artificial intelligence (AI) technologies in national security domains. This role will focus on expanding strategic partnerships, identifying new opportunities, and aligning ORNL's cutting-edge AI capabilities with the needs of federal agencies, defense organizations, and critical infrastructure stakeholders. About CAISER: Established in 2023, CAISER is the nation's premier research center dedicated to securing AI systems against adversarial threats. Leveraging ORNL's world-class high-performance computing (HPC) infrastructure-including Frontier , the world's first exascale system-CAISER conducts end-to-end AI security assessments, vulnerability research, and testing across domains such as cyber defense, geospatial intelligence, autonomous systems, and TinyML for edge environments. CAISER partners...

Requisition Id 15759 Overview: The Emerging Technology Analysis Group (ETAG) at ORNL seeks applicants for our Emerging and Disruptive Technology Enforcement Liaison position. We are looking for candidates with law enforcement experience and backgrounds in inter-agency collaboration. Experience with Federal, State and local law enforcement partners to identify, research and document technologies that pose an emergent threat to Public Safety and National Security. Applicants must be able to demonstrate the ability to maintain actionable mitigation activities related to identified threats. Applicants must exhibit the ability to author all-source intelligence products and facilitate educational opportunities based on technical analysis. Candidates must be capable of proactive research and development through field response and completed with systematic, structured, intelligence analysis. Emphasis will be on emerging and disruptive technologies (EDT) that affect national security...

Requisition Id 15381 Overview: We are seeking a Data Engineer who will focus on engineering design, installation, and troubleshooting associated with the rapidly growing field of stable isotope enrichment. This position resides in the Plasma Enrichment Deployment and Engineering Group in the Plasma Enrichment Science and Engineering Section, Enrichment Science and Engineering Division, Isotope Science and Engineering Directorate, at Oak Ridge National Laboratory (ORNL). The Enrichment Science and Engineering Division serves the nation in two critical areas: advancing enrichment technologies and exploring stable isotope production and applications. The division uses an elite staff of scientists, engineers, and technicians with 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. ESED is the national steward for the research, development, and...

Requisition Id 15718 Overview: The Stable Isotopes Production Facility (SIPF) Demonstration Group within the Enrichment Science and Engineering Division (ESED) is seeking Enrichment Production Technicians. This group is focused on the demonstration and operation of new gas centrifuge technology associated with the enrichment of stable isotopes. The ESED 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, engineers, technical professionals, and technicians with the world-leading capabilities of Oak Ridge National Laboratory (ORNL) to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments. This position reports to the SIPF Demonstration Group Leader. Major Duties/Responsibilities: Perform work in a safe and secure manner consistent with expectations and in compliance...

Requisition Id 15421 Overview: The Multiscale Methods and Dynamics (MMD) Group at Oak Ridge National Laboratory (ORNL) is seeking several qualified applicants for postdoctoral positions related to Computational Fluid Dynamics. Mathematical topics of interest include structure-preserving finite element methods, advanced solver strategies, multi-fluid systems, surrogate modeling, machine learning, and uncertainty quantification. The position comes with a travel allowance and access to advanced computing resources. The MMD group is responsible for the design and development of numerical algorithms and analysis necessary for simulating and understanding complex, multi-scale systems. The group is part of the Mathematics in Computation (MiC) Section of the Computer Science and Mathematics (CSM) Division. CSM delivers fundamental and applied research capabilities in a wide range of areas, including applied mathematics and computer science, experimental computing systems, scalable...

Requisition Id 15420 Overview: The Multiscale Methods and Dynamics (MMD) Group at Oak Ridge National Laboratory (ORNL) is seeking several qualified applicants for postdoctoral positions related to numerical methods for kinetic equations. Mathematical topics of interest include high-dimensional approximation, closure models, machine learning models, hybrid methods, structure preserving methods, and iterative solvers. Successful applications will work in applications related to gas dynamics, plasma physics, and radiation transport. The position comes with a travel allowance and access to advanced computing resources. The MMD group is responsible for the design and development of numerical algorithms and analysis necessary for simulating and understanding complex, multi-scale systems. The group is part of the Mathematics in Computation (MiC) Section of the Computer Science and Mathematics (CSM) Division. CSM delivers fundamental and applied research capabilities in a wide range...

Requisition Id 15422 Overview: The Multiscale Methods and Dynamics (MMD) Group at Oak Ridge National Laboratory (ORNL) is seeking several qualified applicants for postdoctoral positions related to Computational Methods for Data Reduction. Topics include data compression and reconstruction, data movement, data assimilation, surrogate model design, and machine learning algorithms. The position comes with a travel allowance and access to advanced computing resources. The MMD group is responsible for the design and development of numerical algorithms and analysis necessary for simulating and understanding complex, multi-scale systems. The group is part of the Mathematics in Computation (MiC) Section of the Computer Science and Mathematics (CSM) Division. CSM delivers fundamental and applied research capabilities in a wide range of areas, including applied mathematics and computer science, experimental computing systems, scalable algorithms and systems, artificial intelligence and...

Requisition Id 15562 Overview: We are seeking a Nuclear Assurance Specialist who will focus providing oversight of the implementation of applicable policies, processes, procedures, and applications, contributing to an effective nuclear assurance program. This position resides in the Contractor Assurance Group in the Office of Integrated Performance Management within the Office of the Laboratory Director for Operations, at Oak Ridge National Laboratory (ORNL). As part of our team, the Nuclear Assurance Specialist will facilitate independent assessments and monitor performance of the nuclear operations at ORNL. This includes developing and monitoring key metrics for identifying trends and potential impacts to ORNL nuclear operations and ensuring that the nuclear assurance program meets applicable requirements. This position is part of the CAS office which resides in the Office of Integrated Performance Management that supports the Laboratory Director's Office in contractor...

Requisition Id 15492 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 Field Intelligence Operations Division is seeking a skilled and motivated Enterprise-level Senior Network Engineer to support the management and maintenance of our classified network infrastructure. The ideal candidate will have a solid background in network engineering in areas such as, designing, implementing, maintaining, and troubleshooting an...

Requisition Id 15692 Overview: We are seeking a Senior Mechanical/Electrical Technician who will be responsible for assembling, maintaining, troubleshooting, and repairing a wide range of testbeds and systems that incorporate both electrical and mechanical components. This position resides in the Applications Engineering Group within the Enrichment Science and Engineering Section. The Section falls within the Enrichment Science and Engineering Division as a part of the Isotope Science and Engineering Directorate, at Oak Ridge National Laboratory (ORNL). Your expertise will be pivotal in ensuring the seamless commissioning and operation of testbed systems, enhancing productivity, and minimizing downtime. Major Duties/Responsibilities: Assembly & Maintenance: Assemble, maintain, repair, and test electromechanical systems, including components, assemblies, and vacuum/gas-handling R&D testbeds across diverse research environments. Technical Execution: Follow...

Requisition Id 15766 Overview: The Isotope Processing and Manufacturing Division (IPMD) at Oak Ridge National Laboratory (ORNL) is seeking a Hot Cell Operations Technician to support operations and isotope production missions at building 7920. The specific need for this position is for a 12-hour rotating shift radiochemical operations and processing technician. The primary responsibility of the Technician is to ensure that all research and operations work is completed in a safe and compliant manner to meet established program goals within time and resource restrictions. This is accomplished by assisting the 7920 Operations Shift Supervisor and ensuring that all work is performed in accordance with applicable Nonreactor Nuclear Facilities Division (NNFD) and IPMD division work control, change control, procurement, fabrication, and testing requirements. Major Duties and Responsibilities: Complete chemical processing operations including dissolution, separation, purification,...

Requisition Id 15750 Overview: We are seeking a Research Scientist who will focus on advancing experimental research into measurements of plasma radiative power to characterize impacts to device performance for fusion energy applications. This position resides in the Diagnostics & Control group in the Burning Plasma Foundations section in the Fusion Energy division at Oak Ridge National Laboratory (ORNL). The D&C group carries out experiment-based research and development work in support of ongoing science and technology research for the U.S. DOE Fusion Energy Sciences Program. Major Duties/Responsibilities: Conduct research on processes that arise from the confinement of high temperature plasmas, for example in the context of radiative energy from fusion-relevant research devices, such as tokamaks, stellarators, and the MPEX linear plasma device. Build collaborative relationships with international and domestic scientists in support of research to understand...

Requisition Id 15731 Overview: The Transportation and Waste Management Division at Oak Ridge National Laboratory (ORNL) is seeking qualified applicants for the position of Transportation Specialist. This position is responsible for a range of operational activities in the packaging and transportation arena at ORNL; therefore, ensuring that these activities are in compliance with the applicable regulations. Major Duties/Responsibilities: Responsible for proper transportation classification, documentation, and packaging of off-site shipments, including, but not limited to, radioactive and hazardous materials, classified materials, stable isotopes shipments, international shipments and non-hazardous materials as needed. Ensures such shipments are in compliance with applicable Department of Transportation (DOT), International Civil Aviation Organization (ICAO), International Air Transport Association (IATA), Nuclear Regulatory Commission (NRC), Department of Commerce and...

Requisition Id 15764 Purpose The Glenn T. Seaborg Initiative (GTSI) of Oak Ridge National Laboratory (ORNL) is committed to enhancing and maintaining US capabilities in actinide science and technology by helping to attract, develop, and retain the workforce of actinide scientists to meet the needs of the nation. Topic of Interest This position is supported by the Department of Energy Isotope Program (DOE IP) to advance the chemical processing of unique f-element isotopes, including Cf-252, Bk-249, Es-254, Fm-257, and Pm-147. A core focus of the DOE IP is to improve and develop novel chemical and physical processes for recovering and purifying radioisotopes from irradiated targets and waste streams. These efforts directly support the DOE IP mission to produce and distribute limited-supply radioisotopes, conduct transformative R&D in isotope production and separation, reduce U.S. dependence on foreign isotope sources, and strengthen domestic supply chains for national...

Requisition Id 15772 Overview: The Quality Assurance Division (QAD) at Oak Ridge National Laboratory (ORNL) is seeking qualified applicants for the position of Quality Representative (QR) to provide support for the Neutron Scattering Division at Spallation Neutron Source (SNS). The SNS produces neutrons with an accelerator-based system that delivers short (microsecond) proton pulses to a steel target filled with liquid mercury through a process called spallation. Those neutrons are then directed toward state-of-the-art instruments that provide a variety of capabilities to researchers across a broad range of disciplines, such as physics, chemistry, biology, and materials science. The QR reports to the QAD Division, Accelerator and Reactor Group Lead, deployed to the Neutron Sciences Directorate while providing support to their assigned science & technology organization. ORNL is the largest US Department of Energy science and energy laboratory, conducting basic and applied...

Requisition Id 15754 Overview: We are seeking a Mechanical Engineer-PE, with experience in piping systems and fluid transfer including but not limited to: Engineering and design of pipe, pump, controls, and related in-line and on-line devices, who will support various Projects, Programs, and Operations. This role includes supplying technical and field oversite on various projects across the ORNL reservation. This position resides in the Utilities and Site Modernization Team within the Laboratory Modernization Division, part of the Facilities & Operations Directorate, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Manage multiple design and construction projects simultaneously, within scope, schedule, budget and/or available funding, from conception to turn over to operations, Develop project definitions, scopes of work, methods of accomplishment, and project baseline forecasts that include schedules, and cost/spending profiles, Identify...

Requisition Id 15094 Overview: Oak Ridge National Laboratory is seeking a Postdoctoral Research Associate who will focus on material property testing, analysis, and modeling of reactor isotope production target materials. This involves the development of experimental plans to examine material properties such as thermal diffusivity, thermal conductivity, and thermal expansion - material properties critical to understanding target behavior during irradiation in the High Flux Isotope Reactor (HFIR). This could also involve development, validation, and deployment of new physical and analytical testing methods towards improving our understanding of unique target materials. You will be working with scientists, engineers, technicians, and safety and quality assurance staff to support material testing and fabrication efforts that advance HFIR isotope production targets. We are seeking a person who can be a team player with excellent attention to detail, critical thinking ability, and...

Requisition Id 15020 Overview: We are hiring a Senior Linux HPC Systems Engineer to design, operate and maintain clusters, servers, and workstations supporting services where science happens at ORNL! This position resides in the Emerging Technologies & Computing team in the Research Computing group in the Information Technology Services Directorate at Oak Ridge National Laboratory (ORNL). The Emerging Technology Computational Group facilitates ORNL goals through HPC systems engineering, integration, and support for the research community at ORNL. By providing design, deployment, optimization, monitoring, and tooling support across multiple clustered infrastructures, we facilitate Lab-wide R&D projects. Our HPC clusters range in scope from just a handful of nodes to over fifty-thousand cores. We partner with ORNL research organizations to enable research excellence and delivery. We work with other clustered computing and HPC groups to help research programs identify...

Requisition Id 15741 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 Science and Engineering Division (ESED) is seeking multiple Integrated Product Team (IPT) Leaders who will support the Domestic Uranium Enrichment Centrifuge Experiment (DUECE) by technically leading the multi-disciplinary IPT's responsible for research, development, and design of specific sub-systems within the enrichment devices being developed for deployment. A key to successful DUECE project execution lies in solving complex problems within specific sub-systems through integrated teams of individuals from relevant product disciplines. IPTs are typically more effective than individuals at problem-solving, as the collective group understands more aspects of a problem, generates more options, discards...

Requisition Id 15740 Overview: The Prototype Manufacturing Group is seeking applications for a Mechanical Assembly Technician position with experience in the areas of mechanical fabrication, assembly, and inspection processes to support multiple enrichment technology programs. The Prototype Manufacturing Group resides in the Enrichment Systems Fabrication and Demonstration Section, Enrichment Science & Engineering Division, Isotope Science & Engineering Directorate, at Oak Ridge National Laboratory (ORNL). 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, engineers, and technicians 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...