Classified HPC Systems Engineer

We are hiring a HPC Systems Engineer to design, operate, and maintain clusters, servers, and workstations supporting services where science happens at ORNL. This position resides in the Emerging Technologies & Computing team in the Research Computing group of the Information Technology Services Directorate at Oak Ridge National Laboratory (ORNL). The Emerging Technology Computational Group facilitates ORNL goals through HPC systems engineering, integration, and support for the research community by providing design, deployment, optimization, monitoring, and tooling support across multiple clustered infrastructures. Our HPC clusters range in scope from just a handful of nodes to over fifty‑thousand cores. Major Duties/Responsibilities Advocate and promote HPC and clustered computing services to researchers who process large data sets and/or develop code as part of their projects. Ensure the availability, performance, scalability, and security of production systems. Leverage automation and monitoring solutions that minimize day‑to‑day maintenance and scout opportunities to optimize system management practices or system performance. Collaborate with technical points of contact for supported programs to install and help tune the performance of various scientific toolsets. Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace in all interactions. Basic Qualifications A BS degree in computer science, computer engineering, information technology, information systems, science, engineering, business, or a related discipline and a minimum of 5–7 years of aligned professional experience. An overall combination of equivalent education and experience may be considered. 2 or more years of experience managing UNIX/Linux systems. 2 or more years of proven experience with configuration management and automation tools such as Git, Ansible, or Puppet. Moderate proficiency in at least one scripting language such as Bash or Python. Experience performing advanced troubleshooting and system administration with Linux servers. Preferred Qualifications Active DOE Q, active DOD Top Secret, or active DOD TS/SCI clearance is heavily preferred. Solid understanding of multiple operating systems and cluster technologies. A strong desire to innovate, identify new technologies, and communicate potential benefits to team members and research partners. A collaborative and upbeat approach to build trust and credibility with research teams. Experience with Rocky/CentOS/RHEL, Ubuntu, VMware. Understanding of HPC platforms to support users with SLURM job submissions and troubleshooting. Experience building and running containerized applications in an HPC environment. Experience with deployment mechanisms like Diskless, Warewulf, cobbler, PXEboot, and Bright. Experience managing GPU (NVIDIA and AMD) clusters for AI/ML and/or image processing. Knowledge of networking fundamentals including TCP/IP, traffic analysis, common protocols, and diagnostics. Experience with Infiniband networks and diagnostics. Experience with performance and diagnostic tools for benchmarking, analysis, and tuning of systems, networking, and storage. Experience with Grafana, CheckMK, Nagios, Zabbix, SolarWinds, Ganglia, or other monitoring systems. Previous experience working in a government, scientific, or other highly technical environment. Good documentation skills, including ability to prepare simple documentation web pages. Special Requirements Visa sponsorship is not available for this position. This position requires the ability to obtain and maintain a clearance from the Department of Energy. It is designated a Workplace Substance Abuse (WSAP) testing position requiring passing a pre‑placement drug test and participating in ongoing random testing. Other benefits include: Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, and Employee Discounts. 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. #J-18808-Ljbffr