System Administration (All Levels) - TS/SCI Poly required

We are seeking System Administrators at all experience levels to support mission operations sustainment activities, including system monitoring, troubleshooting, maintenance, and operational support within large-scale Linux environments.

This position is heavily focused on Linux system administration in mission-critical environments supporting high-performance computing (HPC) infrastructure and operational platforms. Candidates should possess strong troubleshooting abilities and be comfortable supporting systems where each environment may require unique solutions and approaches.

Minimum Qualifications

• Active TS/SCI with Polygraph

Responsibilities

• Support mission operations sustainment activities including monitoring, troubleshooting, and system maintenance
• Install, configure, and maintain Linux operating systems and applications
• Perform file system configuration and system optimization
• Troubleshoot operating system, application, and network-related issues
• Support TCP/IP networking configuration and troubleshooting
• Compile, install, and maintain software packages and applications
• Develop and maintain Bash scripts to support operational efficiency and automation
• Support enterprise monitoring, alerting, and metrics platforms
• Collaborate with engineering and operations teams to maintain system stability and performance
• Participate in root cause analysis and issue resolution efforts

Required Qualifications

• Strong Linux system administration experience with:*
  • RHEL
  • CentOS
  • Rocky Linux
  • SLES
  • Ubuntu
• Experience with:*
  • OS installation and configuration
  • File system management
  • TCP/IP networking
  • Operating system and application troubleshooting
  • Bash scripting
  • Software compilation and installation
• Understanding of High-Performance Computing (HPC) architecture
• Knowledge of high-speed networking technologies such as:*
  • InfiniBand
  • Slingshot
• Familiarity with the following tools and technologies:*
  • Jira
  • Confluence
  • Grafana
  • Prometheus
  • Nagios
  • Slurm
  • Git
  • Salt
  • Ansible
• Strong troubleshooting and analytical skills
• Ability to work independently in complex operational environments where systems and solutions may vary significantly