High Performance Computing (HPC) Systems Administrator

Description The Leidos Defense Sector currently has an opening for a High Performance Computing (HPC) Systems Administrator to work in our San Diego, California office. This is an exciting opportunity to use your experience supporting the RIPTIDE environment. The High Performance Computing (HPC) Systems Administrator will leverage technical expertise to collaborate with the existing HPC team, architects, and engineers in supporting the computational needs of the Defense Sector. Reporting to the IT Security Engineering Manager, the Systems Administrator will ensure that the HPC cluster is maintained at operational levels and support system users. Primary responsibilities include system administration, configuration, monitoring, troubleshooting, software maintenance, installations, SLURM management and job scheduling system for the Linux clusters, and optimization of advanced computing systems and related infrastructure. Job Responsibilities Deploy, administer, and monitor Linux-based HPC clusters and storage systems. Install, maintain, and upgrade software, libraries, and licensed applications. Troubleshoot and resolve system, hardware, and application issues across HPC environments. Develop and maintain scripts for system administration, monitoring, reporting, and data pipeline optimization. Provide technical support to system users; assist with project execution, benchmarking, and resource planning. Research, deploy, and optimize resource management and scheduling systems. Evaluate and manage a helpdesk ticketing system; ensure timely resolution of user-submitted issues. Implement and manage HPC security infrastructure; ensure compliance with data handling policies and best practices. Create and maintain technical documentation and user guides. Consult system users to assess computational needs. Minimum Qualifications To qualify you must have a bachelor’s degree in computer science or a related STEM field, combined with 3-5+ years of dedicated HPC or large-scale Linux system administration experience. Advanced knowledge of SLURM Workload Manager configurations, including accounting, resource limits, fair-share scheduling, and node state management. Hands‑on experience with automation frameworks like Ansible. Proficiency in scripting languages such as Bash, Python, or Perl for system administration and automation. Strong troubleshooting skills across systems, hardware, network, and application layers. Familiarity with software installation, configuration, and maintenance. Knowledge of security best practices, including the handling of protected data. Excellent communication and documentation skills. Qualified candidates must be able to effectively communicate with all levels of the organization. Preferred Qualifications Red Hat Certified System Administrator and/or Engineer Certification. Experience in integrating HPC resources. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting July 21, 2026 Pay Range Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit Pay And Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. #J-18808-Ljbffr Leidos