Technical Expert/Functional Expert (HPC)

Reflexive Concepts, LLC; Georgetown (MD); On-site; USD 140,000 - 210,000; Full time

Job summary

Reflexive Concepts is seeking a Technical Expert/Functional Expert (HPC) to lead high-performance computing operations and engineering efforts. You will act as a senior authority for Linux HPC systems, schedulers, and interconnects, guiding monitoring, troubleshooting, and continuous improvement.

The role requires 10+ years in HPC/system engineering, a DoD 8570 IAT II certification, and an active TS/SCI clearance with polygraph.

Qualifications

• Ten years of HPC/system engineering experience.
• Bachelor's degree or higher in a related technical field (or 15 years experience in lieu).
• Deep Linux expertise on RHEL, CentOS, Rocky, SLES, or Ubuntu.
• Expert understanding of HPC architecture and high-speed networks (InfiniBand, Slingshot).
• OS install, file system configuration, TCP/IP networking, and OS/app troubleshooting; Bash scripting; software compilation and install.
• DoD 8570 IAT Level II certification (with verification code).
• Active TS/SCI clearance with full-scope polygraph (recent within 7 years).
• On-call requirement.

Responsibilities

• Serve as senior technical authority for HPC mission operations sustainment.
• Guide monitoring, troubleshooting, and continuous improvement of large-scale Linux HPC systems, schedulers, and interconnects.
• Maintain and optimize HPC infrastructure including InfiniBand/Slingshot networks.
• Collaborate with teams to implement improvements and automation.

Skills

HPC & system engineering

Linux expertise

Bash scripting

Software compilation

TCP/IP networking

On-call readiness

DoD 8570 IAT Level II

Education

Bachelor's degree or higher in a related field

Tools

Slurm

Salt

Ansible

Git

Jira

Confluence

Grafana

Prometheus

Nagios

Lustre file system

DDN Exascaler

Job description

Technical Expert/Functional Expert (HPC)

• NBP 324, MD

Reflexive Concepts is seeking a skilled Technical Expert / Functional Expert (HPC) to join our growing team!

You will serve as a senior technical authority for high-performance computing mission operations sustainment, guiding the monitoring, troubleshooting, and continuous improvement of large-scale Linux HPC systems, schedulers, and high-speed interconnects.

Qualifications:

• Ten (10) years of HPC / system engineering experience
• Bachelor's Degree or higher in a related technical field
  • An additional five (5) years of HPC / system engineering experience may be substituted for the degree, for a total of Fifteen (15) years

Required:

• Deep Linux expertise on RHEL, CentOS, Rocky, SLES, or Ubuntu
• Expert understanding of HPC architecture and high-speed networks such as InfiniBand and Slingshot
• OS install, file system configuration, TCP/IP networking, and OS/application troubleshootingBASH 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:

• Slurm, Salt, Ansible, git, Jira, and Confluence
• Monitoring with Grafana, Prometheus, and Nagios
• Lustre file system administration and DDN Exascaler appliances
• Curiosity about emerging technologies: E1000s, ESNs, DAOS, Weka