System Administrator II

Reflexive Concepts, LLC; Bluffdale (UT); On-site; USD 110,000 - 160,000; Full time

Job summary

Reflexive Concepts, LLC in Bluffdale, UT, seeks a skilled System Administrator (Level 2) to support mission operations sustainment by monitoring, troubleshooting, and maintaining Linux-based high-performance computing systems for a national security mission.

The role requires five years of system administration experience, a related bachelor’s degree (or ten years of experience in lieu of the degree), DoD 8570 IAT Level II certification, and an active TS/SCI clearance with full-scope polygraph.

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

Responsibilities

• Support mission operations sustainment — monitoring, troubleshooting, and maintaining Linux-based HPC systems.
• Ensure reliability of DoD mission-critical Linux infrastructure.
• Handle on-call rotation as part of role

Skills

Troubleshooting

HPC architecture knowledge

On-call readiness

Linux system administration

Education

Bachelor's degree in a related technical field

Ten years of system administration experience in lieu of degree

Tools

BASH scripting

Software compilation & install

Linux administration (RHEL/CentOS/Rocky/SLES/Ubuntu)

TCP/IP networking

InfiniBand/Slingshot HPC networking

Jira

Confluence

Grafana

Prometheus

Nagios

Slurm

Git

Salt

Ansible

Job description

Reflexive Concepts is seeking a skilled System Administrator (Level 2) to join our growing team!

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
• DoD 8570 IAT Level II certification (with verification code)
• Active TS/SCI clearance with full-scope polygraph (most recent poly within 7 years)
• This position carries an on-call requirement.

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