Oak Ridge National Laboratory
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Full Time
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Group Leader, HPC System Acceptance and User Environment

Requisition Id 12696
The Operations Section within the National Center for Computational Sciences (NCCS) division at Oak Ridge National Laboratory is seeking a technical staff to lead the System Acceptance & User Environment (SA&UE) group which is responsible for evaluating the functionality, performance, and usability of compute and storage resources as well as maintaining the user environment on all NCCS systems. More details about the Operations Section can be found at: To learn more about the SA&UE group, please visit:


We are seeking a self-starter with a strong background in high-performance computing (HPC) environments, and a clear demonstration of effective leadership and communication skills including the ability to prioritize and delegate responsibilities effectively. In this role, you will have the opportunity to provide leadership to the SA&UE group to advance technical professional domain expertise in the development of a robust testing suite to assist in deployments of new systems, the evaluation of new system and user facing software, the design of infrastructure to collect, analyze, and monitoring the functionality and performance of NCCS systems, and as a result support ORNL’s aspiration to be the world’s best-in-class R&D institution and ORNL’s science culture.


The 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. The NCCS hosts the Oak Ridge Leadership Computing Facility, one of DOE’s National User Facilities.


As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an extraordinary 80-year history of solving the nation’s biggest problems. We have a dedicated and creative staff of over 6,000 people! Our vision for diversity, equity, inclusion, and accessibility (DEIA) is to cultivate an environment and practices that foster diversity in ideas and in the people across the organization, as well as to ensure ORNL is recognized as a workplace of choice. These elements are essential for enabling the execution of ORNL’s broader mission to accelerate scientific discoveries and their translation into energy, environment, and security solutions for the nation.


Major Duties and Responsibilities:

  • Manage a group of 8+ HPC engineers responsible for the development of a robust testing suite to assist in deployments of new systems and evaluation of new system and user facing software.
  • Design of infrastructure to collect, analyze, and monitor the functionality, performance, and usability of NCCS systems throughout their lifetime.
  • Overseeing the deployment and maintenance of the user environment for all NCCS systems across all supported programs.
  • Responsible for all aspects of personnel management including recruiting, hiring, mentoring, and performance evaluation.
  • Collaborate with other groups/teams within the NCCS as needed to meet organizational goals.
  • Manage group budget/expenses related to software, maintenance, and travel.
  • Ensure that all work is done in adherence to ORNL/Lab safety standards and policies.
  • Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service.
  • Promote diversity, equity, inclusion, and accessibility by fostering a respectful workplace – in how we treat one another, work together, and measure success.


Qualifications Required:

  • Requires a Ph.D. with a minimum of 4 years relevant experiences, a M.S. with a minimum of 7 years experiences, or a B.S. with 8 years of relevant experiences.
  • Qualified candidates should have demonstrated experience in leading technical teams.
  • Experience working technologies including more than one in the following areas:Shell scripting (e.g., bash, ksh) in a Linux environment
  • Programming Languages: Fortran, C, C++, Perl, Python
  • Parallel programming: MPI, OpenMP, OpenACC, CUDA, HIP, Kokkos, RAJA
  • Software deployment and build systems (e.g., CMake, Spack)
  • Containers (e.g., singularity, docker, podman)


Preferred Qualifications:

  • Experience building and installing scientific software and other 3rd party software applications on HPC systems
  • Experience with HPC schedulers and resource managers
  • Experience implementing scientific software on HPC systems
  • Experience developing and completing tests on HPC systems
  • Experience developing scientific software on GPU-based HPC systems
  • Experience with container technologies (e.g., singularity, docker)
  • Experience applying machine learning frameworks on HPC systems
  • Experience writing user documentation
  • Experience developing and delivering training for users
  • Strong technical and analytical skills
  • Strong verbal and written communication skills
  • Maintains the highest level of professionalism at all times when interacting with internal and external customers
  • Demonstrates a high-energy, positive attitude and commitment to delivering a robust environment to NCCS users
  • Contributes to a positive team environment within the center by demonstrating a strong work ethic, effectively communicating with others, and proactively anticipating center and user needs
  • Experience coordinating and running HPC support teams
  • Understanding of the requirements of a DOE, DoD, and/or NSF HPC center


Benefits at ORNL:

ORNL offers competitive pay and benefits programs to attract and retain talented people. The laboratory offers many employee benefits, including medical and retirement plans and flexible work hours, to help you and your family live happy and healthy. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also provided for convenience.


Other benefits include: 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: or call 1.866.963.9545.


ORNL is committed to the full inclusion of all qualified individuals. As part of this commitment, we will ensure that persons with disabilities are provided reasonable accommodations.

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

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.