Reflexive Concepts is seeking a skilled System Administrator to join our team!

The System Administrator will provide Infrastructure Server and Desktop Sustainment services to enhance and complement High Performance Computing (HPC) sustainment capabilities.

The successful candidate will support installation, deployment, integration, configuration, tuning, and operational support of the following, but not limited to:  

• Workstations/desktops installed with a custom Linux operating system 
• Monitors  
• KVM switches  
• Peripheral devices (i.e. keyboards, mice, media converters, etc.)  
• Printers and Multi-function devices (generally HP, Dell, or Lexmark)  
• Cabling (i.e. Ethernet, fiber, serial, VGA, DVI, HDMI, DisplayPort, etc.)  

Qualifications:  

• B.S. in a technical discipline and 3 years’ experience as a System Administrator in programs and contracts of similar scope, type, and complexity
  • 5 additional years of experience may be substituted in lieu of a degree

• Linux (RHEL, CentOS, Rocky, SLES, Ubuntu [new])
• Experience with OS install, file system configuration, TCP/IP networking, configuration, operating system and application troubleshooting, Bash scripting, software compilation and installation
• Understanding of HPC architecture, knowledge about high-speed networks such as InfiniBand, Slingshot
• Familiarity with Jira, Confluence, Grafana, Prometheus, Nagios, Slurm, Git, Salt, Ansible
• Good troubleshooting skills– each system is slightly different, and there's no "one fix" for a particular problem
• Lustre file system configuration and administration, troubleshooting knowledge
• Experience with DDN Exascaler file system appliances
• TCP/IP networking knowledge, specifically storage fabrics
• Experience with Cisco and Juniper (Arista is also desired)
• Genuine curiosity/proactive effort to learn/grow in what comes next: E1000s, ESNs, DAOS, Weka
• Experience with benchmarking tools (e.g. IOR, iperf, FIO, lnet_selftest)
• DoD 8570 IAT II level certification required