HPC / Linux Systems Administrator

VIRSIG, LLC; Indiana (PA); On-site; USD 100,000 - 140,000; Full time

Benefits offered by this job

Health benefits

401(k) plan with company match

Professional development assistance

Job summary

VIRSIG is seeking an experienced HPC/Linux Systems Administrator to manage an on-site NVIDIA GPU-accelerated HPC cluster for NAVOCEANO at Stennis Space Center. The role covers system administration, image management, and cybersecurity compliance to support AI/ML workloads.

You will install and maintain high-performance storage and interconnects, manage Slurm and containers, and harden systems to DoD standards.

Qualifications

• Bachelor's degree in Computer Science, or a bachelor’s degree with 30 semester hours in math, statistics, and computer science
• Hands-on experience running Linux in an HPC environment
• Experience with parallel file systems (Lustre), GPU-accelerated compute nodes, and high-speed interconnects (HPE Slingshot)
• Experience with job schedulers (Slurm) and containers (Docker, Singularity/Apptainer)
• Familiarity with DISA STIGs, vulnerability management, and DoD security frameworks (NIST 800-53, DoD RMF)
• Solid written and verbal communication skills, comfortable writing training materials and teaching government staff

Responsibilities

• Install, configure, and maintain HPC components, including CPU/GPU compute nodes, Slingshot interconnect, and Lustre filesystem
• Build and manage OS images for compute and service nodes so the software environment stays stable
• Manage user accounts, access controls, and resource allocation, and run the Slurm job scheduler
• Monitor system health and performance, perform routine maintenance and firmware updates, coordinate hardware repairs
• Keep system documentation current, including configuration details, troubleshooting steps, and security protocols
• Configure and manage the network, including switches, routers, and firewalls, troubleshoot connectivity issues
• Manage HPC storage (Lustre, HPE Parallel File System, GPFS), including backups and capacity monitoring
• Install and maintain the HPC/AI-ML software stack (compilers, libraries, TensorFlow, PyTorch, Docker, Singularity/Apptainer) and manage licenses
• Support users with performance tuning, GPU utilization, and optimizing interconnect/file system usage
• Harden systems to DISA STIG requirements and support quarterly STIG compliance checks and remediation
• Run vulnerability scans and fix findings, monitor security logs, respond to incidents, aid in A&A/ATO documentation
• Train NAVOCEANO staff through on-the-job instruction and develop a knowledge transfer plan
• Assist with monthly status reports, quarterly program reviews, and NAVOCEANO briefings as needed

Skills

Linux

HPC

Slurm

Docker

TensorFlow

PyTorch

Security

DISA STIGs

Vulnerability management

Network administration

Education

Bachelor's degree in Computer Science or related

Tools

Lustre

HPE Slingshot

HPE Parallel File System

GPFS

TensorFlow

PyTorch

Docker

Singularity/Apptainer

Job description

About VIRSIG

VIRSIG is a mission-focused technology and infrastructure company dedicated to serving those who serve. We design, deploy, integrate, and sustain mission-critical construction, security, communications, and technology solutions for federal, state, local, and commercial customers.

We are guided by our core values:

• People Matter

• Do the Right Thing

• Long-Term vs. Short-Term Focus

• Endless Pursuit of Excellence

• Be Heroic

• Never Give Up

Position Summary

VIRSIG is looking for an experienced HPC/Linux Systems Administrator to handle on site system administration, operational support, and cybersecurity compliance for a Hewlett Packard Enterprise (HPE)High-PerformanceComputing cluster supporting Artificial Intelligence (AI) and Machine Learning (ML) workloads at NAVOCEANO, Stennis Space Center, MS. This system is a strategic Navy asset built on GPU accelerated compute nodes, an HPE Slingshot high speed interconnect, aLustreparallel file system, andimage basedOS deployment infrastructure.

If you enjoy solving complex technical challenges, working with cutting-edge HPC technologies, and supporting critical Department of Defense missions, we’d like to hear from you.

What You’ll Do

As the HPC / Linux Systems Administrator, you will:

• Install, configure, and maintain HPC components, including CPU/GPUcomputenodes, the Slingshot interconnect, and theLustreparallel file system

• Build and manage OS images for compute and servicenodesso the software environment stays stable and consistent

• Manage user accounts, access controls, and resource allocation, and run theSlurmjob scheduler

• Monitor system health and performance, handle routine maintenance and firmware updates, and coordinate hardware repairs with the vendor

• Keep system documentation current, including configuration details, troubleshooting steps, and security protocols

• Configure and manage the network, including switches, routers, and firewalls, and troubleshoot connectivity issues

• Manage HPC storage (Lustre, HPE Parallel File System, GPFS), including backups and capacity monitoring

• Install andmaintainthe HPC/AI-ML software stack (compilers, libraries, TensorFlow,PyTorch, Docker, Singularity/Apptainer) and manage licenses

• Support users with performance tuning, GPUutilization, and getting the most out of the interconnect and file system

• Harden systems to DISA STIG requirements and support quarterly STIG compliance checks and remediation

• Run vulnerability scans and fix what they find,monitorsecurity logs, respond to incidents, and help with A&A/ATO documentation

• Train NAVOCEANO staffthrough onthe job instruction anddocumentation, andcarry out a knowledge transfer plan so government staff can run the system independently by the end of the contract

• Help with monthly status reports, quarterly program reviews, and other NAVOCEANO briefings as needed

Required Qualifications

• U.S. citizen with an active DoD Top Secret clearance (Tier 5 investigation),adjudicatedand in place before the contract start date

• Meets the OPM qualification standard for IT Specialist (2210) or Computer Scientist (1550) at the GS-12 level or above,roughly 4years of specialized IT/network administration experience

• Bachelor’s degree in Computer Science, or a bachelor’s degree with 30 semester hours in math, statistics, and computer science (at least 15 of those hours in calculus or statistics), or equivalent experience

• Hands on experience running Linux in an HPC environment

• Experience with parallel file systems (Lustre), GPU accelerated compute nodes, andhigh speedinterconnects (HPE Slingshot)

• Experience with job schedulers (Slurm) and containers (Docker, Singularity/Apptainer)

• Familiarity with DISA STIGs, vulnerability management, and DoD security frameworks (NIST 800-53, DoD Risk Management Framework)

• Solid written and verbal communication skills, comfortable writing trainingmaterialsand teaching government staff

Preferred Qualifications

• Experience with HPE Cray System Management or HPE Performance Cluster Manager

• Experience supporting AI/ML frameworks (TensorFlow,PyTorch) on HPC systems

• Priorworkon a DoD or Navy system administration contract, ideally in scientific or oceanographic computing

• DoD 8570/8140 IA Technical Level I certification, or willingness to get it soon afterhire

Work Environment

• Full-time, on-site position located at NAVOCEANO, Stennis Space Center, Mississippi
• Monday through Friday, 7:00 AM – 4:30 PM, aligned with the Government work schedule
• Must maintain required security clearance and Common Access Card (CAC)
• Must complete all required Government security, OPSEC, and anti-terrorism training

Why Join VIRSIG?

At VIRSIG, our mission is bigger than construction, technology, or infrastructure. We serve those who serve, and we believe the work we do matters. This role offers the opportunity to lead meaningful projects, shape operational standards, mentor strong teams, and help build a company grounded in ownership, excellence, service, and purpose.

VIRSIG’s “Why”

At VIRSIG, we believe that service to others can change the world. We believe that those who serve with strong morals and character can inspire others to do the same and overcome obstacles and challenges that many may see as insurmountable. We believe that it is our duty to defend, protect, and serve those that uphold our nation’s values. If you’re driven and looking for a place to grow, come join us.

VIRSIG’s Core Values

• People Matter
• Do the Right Thing
• Endless Pursuit of Excellence
• Long-term vs Short-term Focus
• Be Heroic!
• Never Give Up

VIRSIG offers eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, professional development assistance, as well as participation in a 401(k) plan with company match. Salary will be commensurate with experience.

VIRSIG is proud to be an equal employment workplace. Individuals seeking employment at VIRSIG are considered without regards to age, ancestry, color, gender (including pregnancy, childbirth, or related medical conditions), gender identity or expression, genetic information, marital status, medical condition, mental or physical disability, national origin, protected family care or medical leave status, race, religion (including beliefs and practices or the absence thereof), sexual orientation, military or veteran status, or any other characteristic protected by federal, state, or local laws.