HPC Linux Systems Engineer

Overview

The National Center for Computational Sciences (NCCS) at Oak Ridge National Lab (ORNL) seeks a highly qualified HPC Linux Systems Engineer to help improve security, performance, and reliability of NCCS computing environments. This includes supporting Frontier and other clusters and programs. Frontier is one of the scientific community's most powerful computational instruments for solving today’s challenging problems. The position is within the HPC Scalable Systems Group in the NCCS Systems Section and involves supporting activities related to system installation, deployment, acceptance, performance testing, upgrades, problem diagnosis, and troubleshooting of large-scale HPC resources.

The NCCS provides state-of-the-art computational and data science infrastructure with dedicated professionals to accelerate scientific discovery and engineering advances across disciplines. NCCS hosts the Oak Ridge Leadership Computing Facility, one of DOE’s National User Facilities. ORNL is a DOE Office of Science national laboratory with a history of solving major problems and a staff of over 6,000.

• Install, integrate, and administer HPC Linux clusters and high-speed networks
• Diagnose system operational problems quickly and effectively
• Coordinate with vendors to resolve hardware and software problems
• Recommend, plan, and coordinate hardware and software changes with customer participation using change management processes
• Port and write system management tools
• Document system administration procedures for routine and complex tasks
• Participate in a 24-hour, 7-day on-call support rotation and off-hours maintenance windows
• Implement/integrate systems into the NCCS environment and perform systems performance analysis
• Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with core values of Impact, Integrity, Teamwork, Safety, and Service

• Bachelor’s Degree in a scientific or technical field
• 5+ years of Linux systems experience
• An equivalent combination of education and experience will be considered

• Experience managing Linux operating systems in a large-scale system environment
• Solid understanding of networked computing environment concepts
• Experience with Linux Cluster Administration
• Ability to develop and maintain programs and scripts that aid in the operation and automation of administrative tasks using shell and scripting languages (bash, Python, Go)
• Experience with Lustre and GPFS file systems
• Experience with batch schedulers (particularly SLURM)
• Experience deploying and maintaining automated configuration management software such as Puppet
• Strong interpersonal and communication skills
• Ability to work as a team player
• Proactive and solution-oriented problem solver
• Prior project and/or team leadership experience

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.

For employment at ORNL, a Real  form of identification will be required. ORNL is subject to DOE access restrictions. All employees must be able to obtain and maintain a federal Personal Identity Verification (PIV) card as mandated by HSPD-12 and DOE Order 473.1A, requiring a favorable post-employment background investigation. New employees must successfully complete a Federal Tier 1 background check, which includes a declaration of illegal drug activities within the last year, including marijuana and cannabis derivatives, which are still illegal under federal law.

For foreign national candidates: If you have not resided in the U.S. for three consecutive years, you are not eligible for the PIV credential and will need a favorable Local Site Specific Only (LSSO) risk determination. After meeting the residency requirement, a PIV credential is required to maintain employment.

ORNL offers competitive pay and benefits, including medical and…