System Administrator I

Reflexive Concepts

System Administrator (Level 1)

Reflexive Concepts is seeking a skilled System Administrator to support mission operations sustainment — monitoring, troubleshooting, and maintaining Linux-based high-performance computing systems on a high-impact national security mission.

Qualifications:

Five (5) years of system administration experience
Bachelor's Degree or higher in a related technical field
An additional five (5) years of system administration experience may be substituted for the degree, for a total of Ten (10) years

Required:

Linux administration on RHEL, CentOS, Rocky, SLES, or Ubuntu
OS install, file system configuration, and TCP/IP networking
Operating system and application troubleshooting
BASH scripting; software compilation and install
Active TS/SCI clearance with full-scope polygraph (most recent poly within 7 years)

Desired Skills:

Understanding of HPC architecture and high-speed networks (InfiniBand, Slingshot)
Familiarity with Jira, Confluence, Grafana, Prometheus, Nagios, Slurm, git, Salt, and Ansible
Strong troubleshooting skills — comfort with the reality that no two systems are exactly alike

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Vacancy posted 15 hours ago

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