HPC Systems Engineer - TS/SCI Required

Phoenix Operations Group • Charlottesville, VA

23h • Onsite

About The Position

Phoenix is seeking a High Performance Computing (HPC) Systems Engineer to support the build, configuration, and sustainment of advanced Linux-based HPC cluster environments. This role is critical to enabling distributed compute workloads, scientific simulations, and GPU-accelerated processing within a secure research environment. You will work in a cluster-scale computing environment where performance optimization, scheduler configuration, and distributed workload execution are key to mission success.

Requirements

• Active TS/SCI clearance
• Ability to work onsite in Charlottesville, VA
• 6+ years of Linux systems administration experience
• Hands-on experience with HPC clusters or distributed compute environments
• Experience with workload schedulers such as: Slurm PBS / PBS Pro Torque or similar
• Strong command-line Linux administration skills (RHEL preferred)
• Experience with scripting or automation ( Bash, Python, or similar )
• Ability to obtain DoD 8140 (8570) IAT Level II certification

Nice To Haves

• Experience administering multi-node HPC cluster environments
• Familiarity with parallel/distributed file systems (Lustre, BeeGFS, GPFS)
• Experience with MPI, OpenMP , or other parallel computing frameworks
• Experience supporting GPU compute environments (CUDA)
• Familiarity with container technologies : Docker, Podman, Singularity/Apptainer
• Experience with configuration management tools (Ansible, Puppet)
• Background supporting research labs, university HPC, or defense environments

Responsibilities

• Configure, deploy, and maintain multi-node Linux HPC clusters
• Administer and optimize workload schedulers (e.g., Slurm, PBS)
• Troubleshoot distributed compute workloads across cluster environments
• Perform performance analysis across compute, storage, and network layers
• Support GPU-enabled workloads and CUDA-based processing
• Develop and maintain automation scripts and operational tooling
• Assist in cluster provisioning and node deployment (e.g., xCAT, Warewulf)
• Support containerized workloads within HPC environments

Benefits

• Medical, Dental, Vision Insurance - 100% Company Paid Premiums
• STD, LTD, and Life Insurance - 100% Company paid
• 401K – Automatic 10% company contribution; no matching required
• PTO - 4 weeks/year
• Holidays - 11 paid/year
• Birthdays off with pay
• Referral Bonuses – Upfront AND Annually Recurring
• Open Source Bonuses – Contribute to our Github projects
• Professional Development – Paid training, Certifications, and Enrichment

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed