Oak Ridge, Tennessee, United States · On-site
Requisition Id 16761 Overview: As a Senior HPC Architect at Oak Ridge National Laboratory (ORNL), you will lead the architecture, design, and evolution of high-performance computing platforms supporting both open researc…
Skills: HPC Architecture, GPU Computing, Cluster Management, Parallel File Systems, Infrastructure as Code
Oak Ridge, Tennessee, United States · Hybrid
Requisition Id 16767 Overview: We are seeking one or more senior-level Procurement Officers who will provide procurement support to the Oak Ridge National Laboratory’s (ORNL) Isotope Science and Enrichment Directorate, w…
Skills: Procurement, Contract Negotiation, Subcontract Administration, Market Research, Federal Procurement Regulations
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16769 Overview: We are seeking a Nonproliferation R&D Execution – Technical Staff Member who will focus on the development and utilization of nonproliferation research & development (R&D) test-beds where p…
Skills: Technical Coordination, R&D Test-bed Design, Mechanical Engineering, Chemical Engineering, Safety Inspections
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16760 Overview: We are seeking an Applied Data Scientist to perform development of novel and advanced AI/ML algorithms. This work will support a broad user base by applying AI methods that span low-power e…
Skills: AI/ML Algorithms, Spiking Neural Networks, Agentic AI, Radiation Detection, Neuromorphic Computing
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16603 Overview: We are seeking a motivated and capable leader to serve as Division Director of the Fuel Cycle Science and Technology Division at ORNL. Reporting to and working closely with the Associate La…
Skills: R&D Leadership, Nuclear Fuel Cycle Strategy, Program Management, Budget Planning, Workforce Development
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16607 Overview: Oak Ridge National Laboratory (ORNL) is the U.S. Department of Energy’s largest multi-program science and energy research facility. As a world-class innovation hub, ORNL conducts cutting-ed…
Skills: Program Management, Strategic Planning, Project Governance, Stakeholder Management, Proposal Preparation
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16609 Overview: We are seeking an accomplished scientific and technical leader to serve as Division Director of the Fusion Engineering and Applied Materials Division (FEAMD) within the Fusion and Fission E…
Skills: Strategic Leadership, Fusion Engineering, Plasma-Material Interaction, Project Management, Workforce Development
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16333 Overview: We invite applications for Distinguished R&D Staff positions within the Geospatial Science and Engineering Division. ORNL is the nation’s geospatial research laboratory. Our scientists and …
Skills: Science Strategy, Research Leadership, Sponsor Engagement, Proposal Development, Program Management
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16606 Overview: Oak Ridge National Laboratory (ORNL) is the U.S. Department of Energy’s largest multi-program science and energy research facility. As a world-class innovation hub, ORNL conducts cutting-ed…
Skills: Program Management, Strategic Planning, Nuclear Fission, Project Governance, Stakeholder Engagement
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16615 Overview: The ORNL Research Library is seeking an enthusiastic, innovative, and tech savvy professional to support and enhance how users discover, access, and engage with library collections and serv…
Skills: Library Systems Administration, Cloud-based Systems, User Experience (UX), Data Analytics, Research Impact Metrics
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16604 Overview: We are seeking a motivated and capable leader to serve as Division Director of the Nuclear Science and Engineering Division at ORNL. Reporting to and working closely with the Associate La…
Skills: Strategic Planning, R&D Leadership, Nuclear Reactor Design, Program Management, Workforce Development
Oak Ridge, Tennessee, United States · On-site
Boston Government Services, LLC. (BGS) is seeking an experienced Division Director to support our client in Oak Ridge, TN. BGS is an engineering, technology, and security firm helping to advance missions of national impo…
Skills: Strategic Leadership, Program Management, Resource Planning, Workforce Development, Business Development
GEM Technologies, Inc.Oak Ridge, Tennessee, United States · On-site
ABOUT THE ROLE We are seeking a Safety Engineer (Nuclear) to join our team supporting the Uranium Processing Facility! This position is full-time and will be based out of Oak Ridge, Tennessee. Responsibilities Conduct ha…
Skills: Hazard Evaluation, Accident Analysis, Unreviewed Safety Question Determinations, Safety Basis Documentation, 10 CFR 830
Oak Ridge, Tennessee, United States · Hybrid
Requisition Id 16759 Overview: Oak Ridge National Laboratory (ORNL) is seeking a Research Scientist to advance distributed workflow orchestration and cross-facility integration in support of the Genesis Mission, the Amer…
Skills: Distributed Systems, Workflow Orchestration, API Design, Python, Bash
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16753 This is an Evergreen position. We are continually reviewing applications to fill potential openings as they arise. Apply today to be part of our dynamic environment. Overview: Oak Ridge National Labo…
Skills: Calendar Management, Travel Coordination, Technical Document Formatting, Microsoft Office Suite, Adobe Acrobat
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16737 The Oak Ridge National Laboratory has an opening for a Carpenter. In this role you will, under limited supervision, construct, deconstruct, erect, install and repair structures and fixtures using han…
Skills: Carpentry, Blueprint Reading, Hand Tools, Power Tools, Scaffolding Erection
Oak Ridge, Tennessee, United States · On-site
Requisition Id 15602 Overview: The National Center for Computational Sciences (NCCS) at the Oak Ridge National Laboratory (ORNL) is seeking a postdoctoral research associate in the area of Application-driven Composable D…
Skills: Distributed Storage, High-Performance Computing, Scientific AI, Edge Computing, I/O Performance Characterization
Oak Ridge, Tennessee, United States · Remote OK
$90k–$173k/yr
Job Description Overview We are seeking a Senior Civil Engineer – Remote. This remote position is based out of our Oak Ridge, TN office. Your role Responsible for designing, developing, testing, and overseeing the constr…
Skills: Civil Engineering, Structural Analysis, Finite Element Analysis, Nuclear Engineering, Seismic Analysis
Oak Ridge, Tennessee, United States · On-site
At Strata-G, we define significance by the extraordinary people we hire, the relationships we build with our clients, and the positive impact we make in the community. Our team of intellectually curious and highly motiva…
Skills: 3D Modeling, 2D Technical Drawing, SolidWorks, AutoCAD, Engineering Calculations
Oak Ridge, Tennessee, United States · On-site
Requisition Id 16738 Overview: The National Center for Computational Sciences (NCCS) at Oak Ridge National Lab (ORNL), which hosts several of the world’s most powerful computer systems, is seeking highly qualified indivi…
Skills: Full Stack Development, API Development, Kubernetes, Containerization, CI/CD
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Lead the architecture and design of scalable, secure high-performance computing platforms for research and classified missions. Drive technical direction for compute, storage, and network infrastructure while mentoring engineers and ensuring regulatory compliance.
Requires a BS degree in Computer Science or Engineering with 8+ years of experience in HPC engineering and system architecture. Must be able to obtain and maintain a Q clearance with SCI and possess deep expertise in GPU-centric platforms and cluster scheduling.
Requisition Id 16761
Overview:
As a Senior HPC Architect at Oak Ridge National Laboratory (ORNL), you will lead the architecture, design, and evolution of high-performance computing platforms supporting both open research and classified computing missions. This role is responsible for translating mission and scientific requirements into scalable, reliable, and secure HPC architectures—spanning compute (CPU/GPU), high-speed interconnects, storage and parallel file systems, cluster management, and user-facing platform services.
In practice, the Senior HPC Architect drives end-to-end technical direction for HPC environments: developing reference architectures, guiding system design decisions and technology selection, defining performance and capacity models, and ensuring operational excellence through standardization, automation, and observability. The position partners closely with cybersecurity and compliance stakeholders to deliver secure-by-design infrastructure aligned with regulatory requirements and authorization processes (e.g., ATO, NIST controls, STIG implementation).
This role also provides technical leadership across teams—mentoring engineers, leading architecture reviews, and coordinating delivery across infrastructure, security, and scientific programs. Success requires deep expertise in modern HPC system architecture, GPU-centric platforms, cluster scheduling, Linux at scale, and rigorous performance engineering, with the ability to operate effectively in regulated environments.
Major Duties/Responsibilities:
HPC System Design & Architecture
Automation, Infrastructure Platforms & Enablement
Leadership & Collaboration
Basic Qualifications:
Preferred Qualifications:
Special Requirements:
About ORNL:
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.
ORNL offers competitive pay and benefits programs to attract and retain individuals who demonstrate exceptional work behaviors. The laboratory provides a range of employee benefits, including medical and retirement plans and flexible work hours, to support the well-being of you and your family. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also available for added convenience.
Other benefits include the following: Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, and Employee Discounts.
If you have difficulty using the online application system or need an accommodation to apply due to a disability, please email: [email protected].
This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.
We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.
If you have trouble applying for a position, please email [email protected].
ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. UT-Battelle is an E-Verify employer.
Big Science. Big Impact.
Oak Ridge National Laboratory is managed by UT-Battelle for the Department of Energy. Scientists and engineers at ORNL conduct basic and applied research and development to create scientific knowledge and technological solutions that strengthen the nation's leadership in key areas of science; increase the availability of affordable, reliable energy; and contribute to national security. ORNL also performs other work for the Department of Energy, including isotope production, information management, and technical program management, and provides research and technical assistance to other organizations.
Offices: One Bethel Valley Road, Oak Ridge, TN 37831, US
There are currently 393 open science & research positions in Oak Ridge, TN listed on Clera. New openings are added daily as companies post roles.
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