Oak Ridge National Laboratory

Requisition Id 15884 Overview: The Laboratory Modernization Division (LMD) at Oak Ridge National Laboratory (ORNL) is seeking qualified applicants for the position of Construction Field Representative, with emphasis on new construction and renovation of buildings. This position will primarily support the team associated with constructing new facilities but will include some amount of renovation of facilities at the Laboratory as well. Major Duties/Responsibilities: Conduct daily field inspections of all active construction sites. Provide oversight of contractors to confirm project goals and customer satisfaction are being met. Witness acceptance testing as required in specifications (megger testing, load bank testing, commissioning, etc). Duties would include transmitting test reports to project record file. Oversee subcontractor adherence to the ORNL Integrated Safety Management requirements. Oversee subcontractor work practices for compliance with the health and...

Requisition Id 15854 Overview: We are seeking a research professional with fundamental knowledge in artificial intelligence (AI) who will focus on developing and applying AI algorithms to signal and image data processing. Specific knowledge related to neural network design, training, and optimization is required. You will be joining a group with core expertise in sensor data analytics from multiple types of sensing modalities, where this expertise is applied to solve critical national problems in energy and security. Demonstrated knowledge of emerging AI and machine learning techniques as well as understanding of basic signal and image processing concepts is required. Selection will be based on qualifications, relevant experience, skills, and education. This position resides within the Multimodal Sensor Analytics (MSA) Group in the Energy Sensing, Analytics, and Communications (ESAC) Section, Electrification and Energy Infrastructure Division (EEID) at Oak Ridge National...

Requisition Id 15752 Overview: We are seeking a Performance and Risk Analyst to address operational challenges and enhance processes through the myriad Contractor Assurance data sources, including KPIs, metrics, assessments, events, risks, and lessons learned. 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). Analysts support leadership in data-driven, risk informed decision-making to drive continuous improvement across the institution. They also provide expert delivery and leadership of ORNL Contractor Assurance System through implementation of core elements and functions, ensuring execution meets leadership and programmatic expectations and requirements; including, but not limited to: Issues and Event Management, Causal Analysis, Critiques, Assessments, Investigations, Lessons Learned, Performance Analysis and...

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 15885 Overview: We are seeking a Postdoctoral Research Associate - Simulation and Machine Learning for Composite Manufacturing who will focus on developing physics-based simulation and machine-learning-driven optimization frameworks for polymer composite manufacturing processes. This position resides in the Composites Innovation Group in the Manufacturing Science Division (MSD), Energy Science and Technology Directorate (ESTD), at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Develop physics-based computational models, including Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD), for polymer composite manufacturing processes Perform multi-physics simulations involving coupled thermal, mechanical, and material behavior across multiple length scales Develop machine learning algorithms to support process optimization, predictive modeling, and intelligent manufacturing control Integrate simulation tools with in-situ...

Requisition Id 15860 Overview: We are seeking a Neutron Chopper Group Leader who will lead a team of technicians to focus on the installation, operation, and maintenance of neutron chopper systems at the Spallation Neutron Source (SNS). This position resides in the Neutron Chopper Group in the SNS Beamline Operations Section, Neutron Scattering Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). As part of this team, you will be responsible for managing a team to establish and maintain robust and reliable operations of neutron chopper systems across a suite of 19 scattering instruments at a facility that operates 24/7 during periods of neutron production. The Group Leader must be cognizant of operational parameters and ancillary equipment and lead a team that can provide operational support to the scientific programs conducted on those instruments. The Group Leader will coordinate with other group leaders, engineers, instrument science staff and...

Requisition Id 15861 Overview: We are seeking a Field Engineer who will plan, schedule, estimate, and coordinate the execution of construction and maintenance activities for various facilities across the site. This position resides in the Facilities Management & Engineering Group in the Site Services Section, Research Accelerator Division, Neutron Sciences Directorate at Oak Ridge National Laboratory (ORNL). The Site Services Section is responsible for the design, construction, maintenance, and operations of the conventional facilities and utilities for the ORNL - Chestnut Ridge Campus. This position is responsible for ensuring that UT-Battelle subcontractors perform their work safely and in accordance with the subcontract documents, deliver projects within customer expectations for cost, schedule and quality, and ensure all work is coordinated with ORNL Operations personnel, Complex Facility Managers, and Area Managers. Major Duties/Responsibilities: Generate...

Requisition Id 15714 Overview: We are seeking an Electrical, Instrumentation and Controls Engineer to join the Systems Engineering (SE), Design and Fabrication Group within the Research Reactors Division (RRD) at Oak Ridge National Lab (ORNL). The Systems Engineering (SE), Design and Fabrication Group is responsible for the High Flux Isotope Reactor (HFIR) configuration management program. This group also provides technical support to operations, maintenance and performs systems analysis. As the Electrical, Instrumentation, and Controls Engineer, you will design and modify reactor instrumentation loops and control systems, provide technical support for I&C maintenance activities, lead field work, and analyze reactor system performance. This position will function as a cognizant system engineer for the assigned HFIR plant system in the HFIR System Engineering Program and DOE O 420.1 for the hazard category 1 nuclear facility and shall be qualified as a HFIR System Engineer...

Requisition Id 15874 Overview: The Plasma Enrichment Deployment and Engineering Group in the Plasma Enrichment Science and Engineering Section (PESE) is seeking a Senior Operations Planning Lead who will focus on long-term annual capacity planning to meet program objectives as well as short-term machine operations planning based on resource availability and changing operational conditions. This position resides in the Enrichment Science and Engineering Division (ESED) in the Isotope Science and Enrichment Directorate (ISED) at Oak Ridge National Laboratory (ORNL). Our isotopic products enable a wide variety of applications, including curing cancer with radiopharmaceuticals, conducting basic scientific research, and ensuring our national security. ESED is the nation's steward for the research, development, and demonstration of enrichment technologies. ORNL is a recognized leader in centrifuge and electromagnetic enrichment technology. We are the stewards and dispensary of the...

Requisition Id 15822 Overview: We are seeking an experienced instrumentation & controls engineer who will focus on leading the design, development and procurement of ITER I&C control systems including instruments, pilot valve enclosures, control panels, junction boxes, and control system software. In this role you will interface with mechanical engineering, system engineering, multi-disciplinary analysis teams, vendors, and personnel at the ITER headquarters in France to realize optimal design solutions in compliance with ITER requirements. Working closely with quality assurance and procurement officers, you will serve the role of Technical Project Officer (TPO) for I&C contracts. This position resides in the Instrumentation & Controls team in the Engineering Systems, US ITER project, at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Assumes responsibility as a task lead directing aspects of work interdisciplinary team of I&C...

Requisition Id 15824 Overview: As a Senior Grid Sensors R&D Engineer, you will lead the development, testing, and large-scale deployment of sensing technologies for future smart grids. High-fidelity, point-on-wave sensor applications are increasingly critical to address grid resilience, asset health monitoring, and rapid fault recovery amid growing DER and EV penetration. You will set technical direction, mature technologies from lab to field, and integrate sensors, data pipelines, and analytics into operational environments. This position requires deep practical experience in power engineering and a demonstrated ability to lead multidisciplinary teams, shape research programs, and build strategic relationships with utilities and industry partners. You will grow a well-established ORNL testbed and expand field deployments across substations and distribution systems; drive standards activities to accelerate adoption; and lead publication efforts that establish ORNL's...

Requisition Id 15867 Overview: The Oak Ridge National Laboratory has an opening for a Materials Clerk. In this role you will, under limited supervision, perform tasks such as loading and unloading products or materials. Duties and Responsibilities: Moving freight, stock, or other materials to and from storage or production areas, loading docks, delivery vehicles, or containers, by hand or using trucks and other equipment. Inspecting load and identifying proper quantity of items and package weight. Transporting materials using government vehicles. Sorting materials before loading and unloading. Checking in materials and attach identifying information such as barcodes for property management. Maintaining property records. Issue materials from stores, bench stocks, and tool cribs while maintaining inventory of supplies. Performing inventory of items and resolve any inventory conflicts. Order and restock supplies Receive hazardous and radiological material Install...

Requisition Id 15855 Overview: The Oak Ridge National Laboratory has an opening for a Dimensional Inspection Machinist in the Surveillance & Inspection Services group. In this role you will, under limited supervision, operate a variety of machine tools to inspect, calibrate, or produce precision parts and instruments. You will be responsible for applying knowledge of mechanics, mathematics, metal properties, layout and machining, and inspection and calibration procedures. Major Duties/Responsibilities: Measure, examine or test completed units to check for defects and ensure conformance to specifications using precision instruments. Read and understand Geometric Dimensioning & Tolerancing (GD&T) and technical drawings. Program, set-up and operate Coordinate Measurement Machines (CMM) and utilize a variety of inspection tools (hand tools, profilometers, optical comparators, etc.) to conduct precise GD&T, dimensional, and calibration services. Generate...

Requisition Id 15812 Overview: We are seeking a Senior 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: Lead and independently execute engineering design efforts for new and upgraded HFIR structures, systems, and components. Implements modifications in accordance with RRD configuration...

Requisition Id 15831 Overview: We are seeking an Instrument Technician who will focus on perform a wide range of technical activities supporting the installation, maintenance, troubleshooting, repair, and calibration of electronic components, equipment, and systems. You will apply principles and theories of electronics to ensure all work is performed in accordance with internal procedures, published specifications, and industry standards. This position plays a critical role in maintaining reliable, safe, and high-performing systems in support of ORNL's mission. This position resides in the Measurement Services Group in the Fabrication, Instrumentation, and Inspection Division of the Facilities and Operations Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Provide direct technical support to customers, identifying needs, diagnosing issues, and advising on proper equipment use. Assist with scheduling work activities and provide...

Requisition Id 15853 Overview: The High-Performance Computing Systems Section within the National Center for Computational Sciences (NCCS) is seeking an HPC Linux Systems Engineer to join the HPC Infrastructure team. The preferred candidate will possess commensurate knowledge, skills and abilities in addition to relevant education, certifications, experience and demonstrated ability to work as a member of a team. NCCS Provides state-of-the-art computational and data science infrastructure coupled with dedicated technical and scientific professionals tackling large-scale problems across a broad range of scientific domains for accelerating scientific discovery and engineering advances. NCCS hosts the Oak Ridge Leadership Computing Facility (OLCF), one of the Department of Energy's (DOE) National User Facilities which operates Frontier, the nation's first exascale supercomputer. Major Duties/Responsibilities: Systems Administration: Deploy, configure and manage HPC-scale...

Requisition Id 15755 Overview: We are seeking a Packaging Engineer who will focus on Packaging Engineering support. This position resides in the Transportation Management (TM) Group within the Transportation Waste Management Division (TWMD) of the Environment, Safety, Health and Quality Directorate (ESH&Q) at Oak Ridge National Laboratory (ORNL). As part of our team, you will perform various duties associated with the coordination and packaging of ORNL's materials, primarily radioactive material, but could include hazardous, non-hazardous, and classified items to ensure continuous operational flow in the most efficient and cost-effective manner. 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...

Requisition Id 15756 Overview: We are seeking a Packaging Engineer who will focus on Packaging Engineering support. This position resides in the Transportation Management (TM) Group within the Transportation Waste Management Division (TWMD) of the Environment, Safety, Health and Quality Directorate (ESH&Q) at Oak Ridge National Laboratory (ORNL). As part of our team, you will perform various duties associated with the coordination and packaging of ORNL's materials, primarily radioactive material, but could include hazardous, non-hazardous, and classified items to ensure continuous operational flow in the most efficient and cost-effective manner. 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...

Requisition Id 15830 Level: TP04 Active DOE Q, active DOD Top Secret, or active DOD TS/SCI clearance is required for consideration. Overview: We're hiring a Senior IT System Engineer who will be responsible for the end-to-end design, development, integration, deployment, and sustainment of complex systems that include both software and hardware/infrastructure components. You will interface across multiple layers-from user-facing applications to backend services, to system infrastructure and networking, ensuring the full-stack works together to meet mission objectives. You will apply systems engineering principles throughout the lifecycle (requirements, architecture, integration, verification & validation, sustainment). This position is in the Support Services & Isolated Environments Group in the Research Computing Services Division, in the Information Technology Services Directorate at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities:...

Requisition Id 15808 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 Specialist with experience in the areas of material management and inventory control within a manufacturing environment to support enrichment technology programs. This position requires strong working 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 Supply Chain 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 enrichment...