Senior HPC Linux Systems Engineer

Oak Ridge National Laboratory•Oak Ridge, TN

24d•Hybrid

About The Position

The National Center for Computational Sciences (NCCS) at Oak Ridge National Lab (ORNL), which hosts several of the world’s most powerful computer systems, is seeking a highly qualified individual to play a key role in improving the security, performance, and reliability of the NCCS computing environments. This includes supporting one of the fastest supercomputers in the world, Frontier, along with numerous commodity clusters and specialized programs and partnerships. Frontier is one of the scientific research community's most powerful computational instruments for exploring solutions to some of today's most challenging problems. As an HPC Linux Systems Engineer, you will work within the HPC Scalable Systems Group inside of the NCCS Systems Section to support numerous activities of the center. The Scalable Systems group oversees, administers and supports system installation, deployment, acceptance, performance testing, upgrades, problem diagnosis, and troubleshooting of large-scale HPC computational resources. The Systems Section is within the National Center for Computational Sciences Division (NCCS). The HPC Systems Section is responsible for the division’s computing, storage, networking, and infrastructure systems and services. The NCCS provides state-of-the-art computational and data science infrastructure, coupled with dedicated technical and scientific professionals, to accelerate scientific discovery and engineering advances across a broad range of disciplines. NCCS hosts the Oak Ridge Leadership Computing Facility, one of DOE’s National User Facilities.

Requirements

Bachelor’s Degree in a scientific or technical field
8+ years of Linux systems experience is required
Demonstrated experience working in classified environments, including a thorough understanding of security policies, compliance frameworks, and associated standard processes (e.g., NIST, DISA STIGs).
Demonstrated experience designing and deploying of HPC systems, ensuring they meet the computational needs and security requirements of a classified environment.
An equivalent combination of education and experience will be considered

Nice To Haves

Experience managing Linux operating systems in a large-scale system environment
Solid understanding of networked computing environment concepts
8+ years of experience with Linux Cluster Administration
Ability to develop and maintain programs and scripts that aid in the operation and automation of administrative tasks using various 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

Responsibilities

Install, integrate, and administer HPC Linux clusters and high-speed network
Diagnosing system operational problems quickly and effectively
Coordinating with vendors to resolve hardware and software problems
Recommending, planning, and coordinating hardware and software changes with customer participation using change management processes
Porting and writing system management tools
Documenting system administration procedures for routine and complex tasks
Participating in a 24-hour, 7-day on-call support rotation and off-hours maintenance windows
System implementation/integration into the NCCS environment and systems performance analysis.
Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service.