HPC Systems & Scheduler Administrator

Axelon Services Corporation; Greenville (SC); On-site; USD 110,000 - 170,000; Full time

Job summary

Axelon Services Corporation seeks an experienced HPC Systems Administrator to manage OS-level configuration, patching, and hardening of HPC compute nodes, login nodes, and head nodes in a Greenville, SC environment.

You will serve as the SME for the Slurm workload manager, configuring partitions, QoS, reservations, and node scheduling policies while coordinating with cybersecurity teams to maintain secure operations. Proficiency in MPI runtimes and HPC networking is essential.

Qualifications

• Advanced Linux administration skills (RHEL/CentOS/Rocky Linux ecosystem preferred).
• Deep expertise with Slurm Workload Manager (configuration, troubleshooting, performance tuning).
• Experience administering Linux virtual desktops or thin-client environments.
• Experience managing environment modules, compiler toolchains, and MPI runtimes (OpenMPI, Client MPI, etc.).
• Experience with HPC networking concepts (latency optimization, MPI tuning, high interconnects).
• HPC Linux systems administration experience in a production environment.
• Proficiency with system monitoring and observability tooling.

Responsibilities

• Manage OS-level configuration, patching, and hardening of HPC compute nodes, login nodes, and head nodes.
• Ensure stability and security compliance in coordination with company's cybersecurity policies.
• Serve as the primary subject matter expert for the Slurm workload manager.
• Manage partition configurations, node scheduling policies, fairshare/priority weighting, reservation management, and Quality of Service (QoS) tiers.
• Manage environment module frameworks, compiler toolchains, MPI libraries, and application runtime environments.
• Administer and maintain Linux Virtual Desktop environment.
• Deploy and maintain comprehensive system monitoring for compute, scheduler, and Linux VDI environments.
• Design and tune scheduling configurations to maximize throughput and minimize queue latency.
• Profile and tune system-level performance bottlenecks including network fabric, I/O subsystems, and memory bandwidth.
• Support Linux-side user provisioning, group management, SSH key governance, and sudo/privilege management.

Skills

RHEL/CentOS/Rocky

Slurm expert

Linux VDI

Environment modules

MPI runtimes

HPC networking

Production HPC admin

Monitoring tooling

Job description

• Manage OS-level configuration, patching, and hardening of HPC compute nodes, login nodes, and head nodes.
• Ensure stability and security compliance in coordination with company's cybersecurity policies.
• Serve as the primary subject matter expert for the Slurm workload manager.
• Manage partition configurations, node scheduling policies, fairshare/priority weighting, reservation management, and Quality of Service (QoS) tiers.
• Manage environment module frameworks, compiler toolchains, MPI libraries, and application runtime environments.
• Administer and maintain Linux Virtual Desktop environment.
• Deploy and maintain comprehensive system monitoring for compute, scheduler, and Linux VDI environments.
• Design and tune scheduling configurations to maximize throughput and minimize queue latency.
• Profile and tune system-level performance bottlenecks including network fabric, I/O subsystems, and memory bandwidth.
• Support Linux-side user provisioning, group management, SSH key governance, and sudo/privilege management.

Summary

• Location: Greenville, SC
• Duration: 12 Months

Responsibilities

• Manage OS-level configuration, patching, and hardening of HPC compute nodes, login nodes, and head nodes.
• Ensure stability and security compliance in coordination with company's cybersecurity policies.
• Serve as the primary subject matter expert for the Slurm workload manager.
• Manage partition configurations, node scheduling policies, fairshare/priority weighting, reservation management, and Quality of Service (QoS) tiers.
• Manage environment module frameworks, compiler toolchains, MPI libraries, and application runtime environments.
• Administer and maintain Linux Virtual Desktop environment.
• Deploy and maintain comprehensive system monitoring for compute, scheduler, and Linux VDI environments.
• Design and tune scheduling configurations to maximize throughput and minimize queue latency.
• Profile and tune system-level performance bottlenecks including network fabric, I/O subsystems, and memory bandwidth.
• Support Linux-side user provisioning, group management, SSH key governance, and sudo/privilege management.

Requirements

• Advanced Linux administration skills (RHEL/CentOS/Rocky Linux ecosystem preferred).
• Deep expertise with Slurm Workload Manager (configuration, troubleshooting, performance tuning).
• Experience administering Linux virtual desktops or thin-client environments.
• Experience managing environment modules, compiler toolchains, and MPI runtimes (OpenMPI, Client MPI, etc.).
• Experience with HPC networking concepts (latency optimization, MPI tuning, high interconnects).
• HPC Linux systems administration experience in a production environment.
• Proficiency with system monitoring and observability tooling.

Preferred Skills

• AWS cloud HPC experience (AWS ParallelCluster, EC2 HPC instances, EFA networking).
• Experience contributing to or supporting a CI/CD pipeline for HPC configurations.
• Familiarity with GPU compute environments (CUDA runtime, GPU partitioning in Slurm).
• Knowledge of cybersecurity hardening standards for Linux HPC.
• Scripting proficiency in Python, Bash, or Ansible for automation.