System Administrator

About the role

We’re hiring System Administrators at multiple experience levels to support mission-critical operations in Linux-based, high-performance environments. This role is ideal for someone who enjoys hands-on troubleshooting, optimizing system performance, and working closely with engineering and operations teams to keep essential infrastructure reliable and available.

Responsibilities

• Monitor, maintain, and troubleshoot systems and infrastructure supporting mission operations
• Install, configure, and administer Linux operating systems and applications
• Manage file systems, networking services, and system resources
• Troubleshoot operating system and application issues in complex environments
• Write and maintain Bash scripts to automate administrative tasks
• Compile, install, configure, and support software applications
• Support automation and configuration management initiatives
• Collaborate with engineering/operations teams to resolve issues and improve performance
• Document configurations, procedures, and troubleshooting steps
• Participate in upgrades, maintenance windows, and operational support activities

Requirements

• Active TS/SCI with Polygraph
• Linux administration experience with one or more of the following: RHEL, CentOS, Rocky Linux, SLES, Ubuntu
• Experience with: Linux installation/configuration, File system administration, TCP/IP networking fundamentals, OS and application troubleshooting, Bash scripting, Software compilation and installation
• Strong analytical troubleshooting skills and ability to work both independently and on a team

Nice to Have (Strongly Preferred)

• Exposure to or understanding of High-Performance Computing (HPC) environments
• Experience supporting large-scale enterprise or mission-critical infrastructure
• Familiarity with high-speed networking such as InfiniBand and/or Slingshot

Tools/Platforms

• Jira
• Confluence
• Grafana
• Prometheus
• Nagios
• Slurm
• Salt
• Ansible

Storage / Networking Experience (A Plus)

• If you have a background in storage, networking, or infrastructure engineering, you’re highly encouraged to apply.
• Storage technologies (preferred): Lustre configuration/administration/troubleshooting, DDN Exascaler appliances, storage fabric design/support, storage performance tuning/optimization
• Networking technologies (preferred): Enterprise routing/switching (Cisco / Juniper / Arista)

Bonus (emerging tech exposure)

• Benchmarking/diagnostics tools: IOR, iperf, FIO, lnet_selftest

Benefits

System One offers eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

Company Information

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

#M-1 Ref: #851-Rockville-S1