System Administrator – Linux / HPC Infrastructure

Authentic Group of Companies; Maryland; On-site; USD 100,000 - 200,000; Full time

Benefits offered by this job

Three weeks PTO

Eleven federal holidays

Medical and dental coverage

Disability insurance

Life and AD&D insurance

401(k) with up to 4% match

Relocation assistance

Job summary

Authentic Group of Companies in Maryland and Utah seeks System Administrators to maintain Linux-based HPC infrastructure.

Candidates should have TS/SCI with poly, be U.S. citizens, and willing to work on-site in MD or UT.

Responsibilities include configuring Linux, scripting, monitoring, and collaborating with engineering teams; relocation support may be available.

Qualifications

• U.S. citizenship required.
• Active TS/SCI clearance with Full Scope Polygraph.
• On-site work in Maryland or Utah.

Responsibilities

• Install, configure, monitor, and maintain Linux OS and applications.
• Troubleshoot system, application, networking, and performance issues.
• Administer file systems, resources, and TCP/IP networking.
• Develop Bash scripts to automate tasks.
• Support software installation, upgrades, and configuration management.
• Document configurations and procedures.
• Collaborate with engineering and operations teams to maintain reliability.

Skills

Linux administration

Bash scripting

Networking

Troubleshooting

Security clearance

Tools

Lustre

Slurm

Ansible

Grafana

Prometheus

InfiniBand

Job description

System Administrator — Linux / HPC Infrastructure

Locations: Annapolis Junction, MD and Bluffdale, UT

Work Arrangement: 100% On-site

Employment Type: Full-time

Salary Range: $100,000–$200,000 annually, subject to approval

Position Overview:

We are seeking experienced System Administrators to support complex Linux-based infrastructure and mission-critical computing environments. Opportunities are available for professionals specializing in Linux platform administration, networking, storage, and infrastructure engineering.

Responsibilities

• Install, configure, monitor, and maintain Linux operating systems and applications.
• Troubleshoot system, application, networking, and performance issues.
• Administer file systems, system resources, and TCP/IP networking.
• Develop Bash scripts to automate administrative tasks.
• Support software installation, system upgrades, and configuration management.
• Document system configurations and operational procedures.
• Collaborate with engineering and operations teams to maintain system reliability.

Required Qualifications

• U.S. citizenship.
• Active TS/SCI security clearance with NSA Full Scope Polygraph.
• Hands‑on experience with Linux distributions such as RHEL, CentOS, Rocky Linux, SLES, or Ubuntu.
• Experience with Linux administration, Bash scripting, file systems, TCP/IP, and troubleshooting.
• Ability to work fully on‑site in Maryland or Utah.

Preferred Qualifications

• High‑Performance Computing (HPC) experience.
• Storage or network engineering experience.
• Familiarity with Lustre, DDN Exascaler, InfiniBand, Slurm, Ansible, Grafana, Prometheus, or related technologies.
• Experience with performance benchmarking tools such as IOR, iperf, FIO, or lnet_selftest.

Benefits

• Three weeks of paid time off.
• Eleven federal holidays.
• Medical and dental coverage.
• Short‑ and long‑term disability insurance.
• Life and accidental death and dismemberment insurance.
• 401(k) with up to 4% company match.
• Relocation assistance may be available.

Qualified professionals with strong Linux troubleshooting skills and an interest in complex infrastructure environments are encouraged to apply.