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HPC System Engineer, KDI

Date: Sep 25, 2022

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 8164 


The Information Technology Services Division (ITSD) at Oak Ridge National Laboratory (ORNL) is seeking highly motivated individuals to join and contribute to ORNL’s Knowledge Discovery Infrastructure (KDI) environment which is comprised of multiple tenants performing research and analytics with Moderate level and HIPAA data for various projects clients.  This high-performance parallel compute, and an array of specialized computational appliances provide rare capabilities in data, such as graph analytics and deep learning vital to a variety of medical research. These computational services are backed by high-speed interconnects, parallel filesystems, and a distributed object store. The individual will work with the KDI Operational team, both maintaining existing services and contributing to the design and rollout of new services for the various research projects.   


Major Duties/Responsibilities:  

  • Manage a CPU/GPU cluster, including hardware and software stack  
  • Manage a Lustre parallel filesystem  
  • Implement/update HPC job scheduling and parallel computing software  
  • Implement software/configuration necessary to ensure Linux code can interact with  Microsoft SQL database 
  • Work with cluster users to determine needs and develop solutions to meet those  needs.  
  • Ensure adherence to security and privacy practices within the system configuration  
  • Follow strict configuration management policies  
  • Work with the team to define and implement methodologies and standards within the organization  
  • Automate systems administration tasks utilizing open source configuration management tools  
  • Tune operating systems and applications to increase performance and reliability of  services  
  • Diagnose system operational problems quickly and effectively 
  • Document system administration procedures for routine and complex tasks  
  • Participate in scheduled support and off-hours maintenance windows  
  • Coordinate with vendors to resolve hardware and software problems  


Qualifications  Required:

  • B.S. Degree in Computer Science or a related field, or an equivalent combination of education and experience.
  • 5+ years Professional Linux experience  
  • 2+ years cluster management experience  
  • 2+ years storage experience  
  • Experience with parallel and multiprocessing programming interfaces  including OpenACC, MPI, and/or OpenMP.  
  • Experience with common scientific software and libraries such as LAMMPS, FFTW,   NAMD, R, and MATLAB.  
  • Experience with HPC Schedulers and Resource Managers such as Slurm, Torque, Moab, and/or LSF.  
  • Strong scripting skills in shell and/or python  
  • Demonstrated use of a configuration management tools (Puppet, Ansible, or similar technologies)  
  • Ability to use, and build ways to use, automation frameworks  
  • Ability to obtain a HSPD12/PIV badge 


Special Requirement:

This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.


Qualifications Desired:  

  • Expertise with parallel file systems and cluster operations  
  • Experience in production environment using configuration management systems (Ansible, Puppet, CFEngine)  
  • 10+ years Linux experience  
  • 5+ years HPC experience  
  • Experience in a PHI (Protected Health Information) environment  
  • Ability to work with individuals at all levels and diplomatically manage customer expectations  
  • Willingness to accept personal responsibility for client satisfaction  
  • Ability to self-manage assigned tasks and projects  
  • Exceptional attention to detail  
  • Experience with GPU systems  
  • Familiarity with version control systems (Git, SVN)  


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



UT Battelle offers a wide range of relocation benefits for individuals and families to make it easier to come and work here. If you are invited to interview, please ask your Recruiter about relocating with ORNL. 


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.

Nearest Major Market: Knoxville