Technical Expert/Functional Expert (HPC)

Reflexive Concepts, LLC; Maryland; On-site; USD 140,000 - 190,000; Full time

Job summary

Reflexive Concepts, LLC seeks 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 monitoring, troubleshooting, and continuous improvement of large-scale Linux HPC systems, schedulers, and high-speed interconnects.

The role requires deep Linux expertise across major distros, strong HPC architecture knowledge, OS configuration, BASH scripting, and DoD

Qualifications

• Deep Linux expertise across major distros and HPC tooling.
• Strong HPC architecture knowledge and high-speed interconnects.
• OS install, file system configuration, TCP/IP networking, troubleshooting.
• BASH scripting, software compilation and install skills.
• DoD 8570 IAT Level II certification with verification code.
• Active TS/SCI clearance with full-scope polygraph (recent within 7 years).
• On-call requirement for mission operations sustainment.

Responsibilities

• Serve as senior technical authority for HPC mission operations sustainment.
• Guide monitoring, troubleshooting, and continuous improvement of Linux HPC systems.
• Oversee schedulers and high-speed interconnects to ensure reliability.
• Collaborate with teams using Slurm, Ansible, Grafana, and related tools.

Skills

Deep Linux expertise (RHEL/CentOS/Rock

HPC architecture knowledge

OS install & troubleshooting

BASH scripting

On-call readiness

DoD 8570 IAT Level II

TS/SCI clearance

Education

Bachelor's degree or higher in a related technical field

Total experience equivalence: 15 years with substitution

Tools

Slurm

Salt

Ansible

Git

Jira

Confluence

Grafana

Prometheus

Nagios

Lustre

DDN Exascaler

E1000s

ESNs

DAOS

Weka

Job description

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 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:

• 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