Oak Ridge National Laboratory

Full Time
HPC Engineer – System Acceptance & User Environment

Requisition Id 10308
The Organization:

The National Center for Computational Sciences (NCCS) provides state-of-the-art computational and data science infrastructure for technical and scientific professionals to accelerate scientific discovery and engineering advances across a broad range of disciplines. As an important part of the broader High-Performance Computing (HPC) infrastructure, the division also hosts the Oak Ridge Leadership Computing Facility (OLCF), a Department of Energy Office of Science User Facility.


The Team:
The System Acceptance and User Environment Group is within the Operations Section of the NCCS and ensures the functionality, performance, and usability of new NCCS systems through activities such as test development, acceptance, software installation, documentation, and early user support for all NCCS pre-production systems.


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).
Implement special projects as requested (e.g., metrics, cyber security, policy discussions, automated monitoring).
Basic Qualifications:
A minimum of a Bachelor’s degree and 5+ years of related experience, an MS and 4+ years of related experience or a Ph.D.  Degree area should be in Computer Science or a related field.
Prior experience working with multiple programming languages and technologies including more than one of the following:

Shell scripting (e.g., bash, ksh) in a Linux or Unix environment
In addition, prior experience working with parallel programming technologies including at least one of the following:

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 developing and executing tests on HPC systems
Experience executing scientific software on GPU-based HPC systems
Experience utilizing container technologies (e.g., singularity, docker)
Experience utilizing 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 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
Benefits at ORNL:
UT Battelle offers an exceptional benefits package to include matching 401K, Pension Plan, Paid Vacation and Medical / Dental plan. Onsite amenities include Credit Union, Medical Clinic, and free Fitness facilities.


For more information about our benefits, working here, and living here, visit the “About” tab at
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.

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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.