HPC Engineer

Requisition Id 3988 


The Organization

The National Center for Computational Sciences (NCCS) at the Oak Ridge National Laboratory (ORNL) is responsible for providing computational resources at extreme scales for science.  NCCS is home to some of the fastest supercomputers and storage systems in the world, e.g., the 27 petaflops Titan system, the 200 petaflops Summit system, the 250 petabytes GPFS-based Alpine parallel file system, and the disk/tape HPSS archival storage system.  NCCS serves multiple agencies including DOE, NOAA, and the Air Force.  This team also supports the Compute and Data Environment for Science (CADES), which is a big-data facility within NCCS for ORNL staff and their collaborators.

The Team

The NCCS User Assistance and Outreach (UAO) Group provides Level I and Level II high performance computing (HPC) technical support to research teams, generates documentation about NCCS systems, and develops and delivers training to users of these systems. NCCS staff members are also responsible for developing tools and technical solutions for users of these systems.  NCCS User Assistant specialists also serve as ambassadors for users of these systems and the rest of the organization.   

Major Duties/Responsibilities:

The role comprises the following primary functions:

  • Take technical ownership of user reported problems and provide hands-on support for scientific applications and libraries and users of high performance computing systems and clusters.
  • Compile and debug large science and engineering applications.
  • Identify and resolve system-level bugs in conjunction with other technical staff.
  • Work with vendors to resolve issues and implement changes as necessary.
  • Install third-party software applications and tools and provide documentation for usage.
  • Develop and execute system tests to ensure newly deployed systems can support user workloads. 
  • Proactively ensure that users have up-to-date information about the system, including any changes and their impact on the users. HPC User Support staff are very involved in researching and developing documentation  and reference material during system early-use and upgrade phases, as well as maintaining them throughout system operation.
  • Participate in the development, maintenance, and delivery of training and outreach materials to users.
  • Respond to general administrative questions (e.g., system status, requests for accessor special accommodation, etc)
  • Implement special projects as requested (e.g., metrics, cyber security, policy discussions). 

Basic Qualifications:

  • A Bachelor’s degree in computer science or related field and 2+ years of relevant experience. 
  • 1+ years of experience providing user support
  • Requires practical experience with multiple programming languages and technologies including several of the following:
      • Fortran
      • C
      • C++
      • Perl
      • Python
      • Shell scripting (e.g., bash, ksh, etc.) in a Linux or Unix environment 

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 executing scientific software 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 quality customer service
  • 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 support teams
  • Understanding of the requirements of a DOE, DoD, and/or NSF HPC center


Special Requirement:

This position requires access to technology that is subject to export control requirements. Successful candidates must be qualified for such access without an export control license.


Relocation:  Moving can be overwhelming and expensive. UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.
For more information about our benefits, working here, and living here, visit the “About” tab at jobs.ornl.gov.





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 ORNLRecruiting@ornl.gov.

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.

Salary Range
$61,000.00 - 89,000.00
per Year
Salary range estimated by
Oak Ridge, TN 37831, US