164 Science jobs

Requisition Id 17372 Overview: Oak Ridge National Laboratory (ORNL) is seeking an accomplished and visionary technical leader to serve as the Group Leader for the Nuclear Systems Performance and Integration (NSPI) Group. This position offers an exciting opportunity to lead and shape a multidisciplinary research team focused on improving the performance of the existing nuclear reactor fleet, advancing next-generation reactor technologies, and enabling the integration of nuclear energy with broader energy and industrial systems. This position resides within the Nuclear Science and Engineering Division of the Fusion and Fission Energy and Science Directorate. The NSPI Group brings together complementary capabilities in reactor thermal hydraulics, plant systems analysis, computational fluid dynamics (CFD), multiphysics modeling, digital twins, and integrated energy-system simulation. The group advances predictive modeling and engineering analysis capabilities that translate...

Requisition Id 17314 Overview: We are seeking a Postdoctoral Research Associate who will focus on studies at liquid-liquid interfaces of relevance to chemical separations using a suite of surface-specific optical spectroscopies, scattering techniques, and ultrafast pump probe spectroscopies. This work aims to uncover mechanistic insight into how ion partitioning and local gradients at interfaces can be controlled using external stimuli. The position resides in the Chemical Dynamics Group in the Chemical Transformation Section, Chemical Sciences Division (CSD), Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL). The postdoc will work within a multidisciplinary multi-institutional team involving experts in spectroscopy, separation chemistry, and theory. Major Duties/Responsibilities: Apply surface specific nonlinear optical spectroscopies to the study of liquid-liquid interfaces during liquid extraction. Use vibrational pump-probe spectroscopies to...

Requisition Id 17394 Overview: The Advanced Technologies Section (ATS) at Oak Ridge National Laboratory seeks a Senior Research Scientist to lead a research area developing integration models for the co-design of hybrid quantum-HPC systems. Work in this area spans system design, modeling, and digital twins and aims to define how quantum computers will be integrated into future scientific computing systems. The opportunity As overall lead of this research area, you will direct R&D into hybrid quantum-HPC system design, using digital twins and simulations to explore and test designs before they are built. The work seeks to address the questions of which classical HPC technologies are required in close proximity to a quantum computer, and how those tightly coupled resources integrate with large-scale HPC and AI facilities for science. The results will shape vendor co-design discussions and requirements for future scientific computing systems. You will lead the efforts of...

Requisition Id 17428 Overview: We are seeking a Postdoctoral Research Associate who will focus on the development and application of artificial intelligence and machine learning (AI/ML) methods to understand and guide chemical reactions. The research will combine experimental spectroscopy data and molecular simulations to develop predictive models, estimate prediction uncertainty, and guide the selection of new experiments using Bayesian optimization and active learning. The successful candidate will also develop and demonstrate an automated workflow, model training, and experimental recommendations in close collaboration with experimental and computational researchers. This position resides in the Center for Molecular Biophysics (CMB), Biosciences Division (BSD) at Oak Ridge National Laboratory (ORNL). Major Duties/Responsibilities: Develop and apply deep learning multimodal AI/ML models that combine spectroscopy data, molecular structures, reaction conditions, and...

Requisition Id 17417 Overview: We are seeking an Isotope Production Analytical Chemist who will perform detailed sample preparations, radiochemical separations and measurement protocols on samples which contain radiological constituents from environmental levels to high levels of radioactivity. This position will support ORNL scientific staff conducting research and chemical operations associated with the production and purification of radioisotopes and R&D for nuclear fuels. This position resides in the Nuclear Analytical Chemistry (NAC) Section's Transuranium Analytical Laboratory (TAL) Group in the Chemical Sciences Division (CSD), Physical Sciences Directorate (PSD) at Oak Ridge National Laboratory (ORNL). As part of our analytical support team, you will perform proceduralized radiochemical protocols on nuclear materials in support of TAL's environmental stewardship support and Radiochemical Engineering Development Center's (REDC) isotope programs and fuels cycle...

Requisition Id 17267 Overview: Oak Ridge National Laboratory seeks an accomplished and strategically minded leader to serve as Lead, External Recognitions and Honorific Awards within the Office of Research Education (ORE). The Lead will guide the Laboratory's efforts to advance external recognitions and honorific awards for ORNL staff by developing and executing a comprehensive, data-informed strategy to identify, nominate, and support candidates for prestigious national and international awards, fellowships, academy memberships, foundation honors, federal recognitions, and professional society honors. This role is embedded within ORE's established recognition infrastructure. The Lead will work through ORE's Academic Analytics partnership, recognition data tools, directorate points of contact, recognition champions and committees, communications partners, early-career programming, strategic academic partnerships, and external advisory relationships. ORE provides central...

Requisition Id 17429 Overview: We are seeking a Postdoctoral Research Associate to lead experimental efforts that use AI-guided, autonomous spectroscopy to probe short-lived chemical events in solution. This Laboratory Directed Research and Development (LDRD) project combines automated infrared, Raman, and NMR measurements across a broad range of solvent environments and reaction conditions with machine learning and molecular simulation to reveal how solvent environments steer chemical reactivity. The position resides in the Chemical Dynamics Group in the Chemical Transformation Section, Chemical Sciences Division (CSD), Physical Sciences Directorate, at Oak Ridge National Laboratory (ORNL). The postdoc will work within a multidisciplinary team of experts in spectroscopy, chemistry, data science, and theory. Major Duties/Responsibilities: Develop and operate automated spectroscopy platforms (IR, Raman, NMR) for measurements of solution-phase reactions across varied...

Requisition Id 17412 Overview: The Stable Isotope Enrichment Group is seeking a Staff Technician who will focus on operations and development associated with the enrichment of stable isotopes. This position is part of the Electromagnetic Enrichment and Stable Isotope Science Division and serves the nation by advancing enrichment technologies and providing enriched stable isotopes products. We lead the science and production process development for delivering stable isotopes for medical, industrial, and DOE mission critical applications. As part of our team, you will work closely with a focused group of scientists, engineers, and technicians on challenging, fast-paced technical projects and operations in support of the DOE Isotope Program, and specifically associated with the rapidly growing field of stable isotope enrichment. Major Duties/Responsibilities: Operation of complex systems used for the enrichment of stable isotopes Participation in research and development...

Requisition Id 17414 Overview: Oak Ridge National Laboratory (ORNL) 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. Within ORNL, the Building Envelope Materials Research Group develops and deploys affordable, energy efficient and resilient building envelopes for new construction and retrofits to enable DOE's goals. Our synergistic research areas include building science, material and system development, and industrialized construction. With the support from the U.S. DOE Building Technologies Office, we have the most extensive building envelope research portfolio in the nation. The Envelopes Group, in partnership with the University of Tennessee-Oak Ridge Innovation Institute (UT-ORII), is seeking an early career engineer to contribute to groundbreaking research on robotics and navigation that is tailored for building construction...

About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies....

Requisition Id 17310 Overview: Oak Ridge National Laboratory (ORNL) 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. Within ORNL, the Building Envelope Materials Research (BEMR) Group conducts research on materials, thermal management, infrastructure resilience, and technologies that improve the reliability and performance of energy systems to meet DOE's energy affordability and resiliency goals. We are seeking a Postdoctoral Research Associate to conduct research on the resilience of U.S. natural gas infrastructure during extreme cold-weather events. The successful candidate will investigate the causes and consequences of weather-related natural gas supply disruptions, develop modeling and analytical approaches to evaluate system vulnerabilities, and assess technologies and operational strategies that can improve infrastructure...

Requisition Id 17315 Overview: We are looking for a senior cross-disciplinary Data Architect to advance research data capabilities within a national laboratory environment. This role requires deep expertise in research data management, governance, and interoperable data systems, with a focus on supporting mission-driven science across multiple facilities and programs. The successful candidate will lead the creation and refinement of data architecture and governance strategies that will inform and guide the development of AI-enabled computational science at the leading edges of computing. The Data Engineering group at ORNL focuses on research and development for innovative, world-class data systems. We pursue internal and external opportunities to advance scientific research and national security programs through the application of our extensive expertise in the collection, management, distribution, and curation of data. We hire top researchers and engineers who are ready to...

Requisition Id 17411 Overview: The Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL) is seeking a Data Systems AI/ML Engineer for its Earth Sciences Informatics portfolio. In this role, you will develop AI-driven methods that make data from the Atmospheric Radiation Measurement (ARM) user facility easier to find and use. You will build training datasets from years of ARM metadata records and design and implement conversational interfaces powered by large language models (LLMs) that help researchers discover data intuitively and efficiently. You will work as part of a collaborative team and pursue independent research and development. The ARM Data Center processes, archives, and distributes atmospheric observations from observatories around the globe, and provides computing infrastructure and analysis tools to the scientific community. Your work will directly improve how that community accesses and uses these data. Major Duties and...

Requisition Id 17317 Overview: Oak Ridge National Laboratory (ORNL) is seeking a Research Professional to advance automation-enabled biological research across the Biosciences Division (BSD). The Automation Bioengineer will work with scientists, engineers, and facility staff to identify high-value research needs and develop, integrate, and implement automated and semi-automated workflows that improve the scale, reproducibility, speed, and quality of biological experimentation. The work will span BSD programs and biological systems, including microbial and plant engineering, phenotyping, molecular and cellular biology, analytical workflows, and other areas where automation can strengthen research. The position will help connect and extend capabilities in the Advanced Plant Phenotyping Laboratory (APPL), greenhouse and plant transformation environments, microbial engineering laboratories, and other relevant facilities. The successful candidate will prototype and test...

About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies....

About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies....

About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies....

About Sandia Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: Challenging work with amazing impact that contributes to security, peace, and freedom worldwide Extraordinary co-workers Some of the best tools, equipment, and research facilities in the world Career advancement and enrichment opportunities Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home) Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* World-changing technologies....

You may be eligible for a sign-on bonus of up to $25,000. You may also be eligible for relocation assistance. Join our team as an evening shift, full-time Clinical Pharmacist in Tulsa, OK. Why Join Us? Thrive in a People-First Environment and Make Healthcare Better Thrive: We empower our team with career growth opportunities, tuition assistance, and resources that support your wellness, education, and financial well-being. People-First: We prioritize your well-being with paid time off, comprehensive health benefits, and a supportive, inclusive culture where you are valued and cared for. Make Healthcare Better: We use advanced technology to support our team and enhance patient care. Get to Know Your Team: Hillcrest Medical Center is a 656-bed hospital that includes The Alexander Burn Center, The Peggy V. Helmerich Women's Health Center, Kaiser Rehabilitation Center, the latest technology for the treatment of cancer, and the Oklahoma Heart Institute....

You may be eligible for a sign-on bonus of up to $25,000. You may also be eligible for relocation assistance. Join our team as a night shift, full-time, Staff Pharmacist in Tulsa, OK. Why Join Us? Thrive in a People-First Environment and Make Healthcare Better Thrive: We empower our team with career growth opportunities, tuition assistance, and resources that support your wellness, education, and financial well-being. People-First: We prioritize your well-being with paid time off, comprehensive health benefits, and a supportive, inclusive culture where you are valued and cared for. Make Healthcare Better: We use advanced technology to support our team and enhance patient care. Get to Know Your Team: Hillcrest Medical Center is a 656-bed hospital that includes The Alexander Burn Center, The Peggy V. Helmerich Women's Health Center, Kaiser Rehabilitation Center, the latest technology for the treatment of cancer, and the Oklahoma Heart Institute. Explore...