Senior Linux System Administrator

Parsons Corporation • Aberdeen, MD

1d • $134,100 - $241,400 • Onsite

About The Position

Parsons is looking for a talented Linux Systems Administrator to join a tight-knit team keeping powerful, large-scale HPC systems healthy and secure. Your work will help enable cutting-edge research, AI/ML workloads, and production science. If you love working close to the metal, solving hard problems, and learning technologies most admins never touch, this is your type of environment.

Requirements

• Hands-on Linux systems administration experience (RHEL/Rocky/SLES).
• Working knowledge of HPC concepts and/or willingness to learn (clusters, schedulers, parallel/shared filesystems, high-speed interconnects).
• Proficiency with scripting and automation using Bash, Python or other technologies.
• Strong troubleshooting fundamentals with hands-on hardware replacement.
• The ability to work on-site and collaborate within a system administration team.
• BS or MS degree in computer science or engineering, or equivalent experience in lieu of degree
• At least 10 years of directly related experience
• Linux+ certification (or equivalent)
• Security+ certification (or equivalent)
• Top Secret clearance

Nice To Haves

• Experience with job schedulers such as Slurm or PBS.
• Experience with HPC cluster managers (e.g., Warewulf, HP CM, xCAT, or Bright).
• Experience with parallel/shared filesystems (e.g., Lustre, WEKA, or DDN).
• Experience with high-speed interconnects (e.g., InfiniBand or Slingshot).
• Experience administering GPU-based platforms, including NVIDIA GPUs and CUDA.
• Experience implementing monitoring tools such as Prometheus and Grafana.
• Container experience (Apptainer/Singularity, Podman, or Docker).
• Exposure to Cloud and/or Kubernetes is a plus.

Responsibilities

• Perform day-to-day administration on multiple HPC clusters, including installation, configuration, provisioning, tuning, and troubleshooting.
• Apply and maintain security hardening (e.g., DISA STIGs) and patching to support compliance and accreditation activities.
• Perform physical hardware tasks such as replacing failed components (e.g., drives, memory, NICs, cables).
• Work as part of an on-site system administration team supporting research, development, and production HPC environments.
• Work with customers to resolved issues related to the HPC clusters and the services they run.

Benefits

• medical
• dental
• vision
• paid time off
• Employee Stock Ownership Plan (ESOP)
• 401(k)
• life insurance
• flexible work schedules
• holidays

What This Job Offers

• Job Type: Full-time
• Career Level: Senior