HPC Support Engineer - TS/SCI Required

Phoenix Operations Group

10h • Onsite

About The Position

Phoenix is seeking an HPC Support Engineer to support users executing computational workloads within advanced Linux-based High Performance Computing (HPC) environments. This role is essential to ensuring efficient, reliable execution of distributed workloads, scientific simulations, and GPU-accelerated processing.

You will work directly with users and systems in a cluster-scale environment, helping optimize job performance, troubleshoot issues, and promote HPC best practices.

Requirements

• Active TS/SCI clearance
• Ability to work onsite in Charlottesville, VA
• 5+ years of experience in Linux environments supporting HPC or distributed compute workloads
• Experience executing or troubleshooting workloads using: Slurm PBS / PBS Pro Torque or similar schedulers
• Strong command-line Linux experience (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 supporting HPC cluster environments
• Experience with MPI, OpenMP, or parallel computing frameworks
• Experience supporting GPU workloads and CUDA environments
• Familiarity with scientific or engineering applications in HPC environments
• Experience with C/C++ or Fortran and compiler toolchains (GCC, Intel, LLVM)
• Experience troubleshooting application build or runtime issues
• Experience supporting research labs, university HPC, or defense environments

Responsibilities

• Support execution of distributed compute workloads on HPC clusters
• Troubleshoot job failures and performance issues
• Assist users with scheduler job submission scripts (e.g., Slurm, PBS)
• Identify and resolve performance bottlenecks across compute workloads
• Support GPU-enabled workloads and CUDA-based processing
• Guide users on efficient cluster utilization and HPC best practices
• Assist with application execution, compilation, and runtime issues
• Develop and maintain automation scripts and tooling

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
• Number of Employees: 1-10 employees