Key Responsibilities Provide L2/L3 support for Linux systems and resolve complex incidents. Troubleshoot Linux OS issues, including boot failures, kernel issues, services, package management, upgrades, and migrations. Perform OS patching, vulnerability management, and system hardening. Optimize Linux system performance for CPU, memory, storage, and NVIDIA GPU workloads. Develop and maintain automation using Ansible, Puppet, Bash, and Python. Manage infrastructure lifecycle using Git Lab CI/CD and Infrastructure as Code (IaC). Support VDI technologies including SLURM, AWS DCV, Docker, and Kasm Workspaces. Configure and maintain scientific runtime environments using Lmod/Environment Modules. Administer Linux agents such as Automox, Nessus, and Puppet. Support NFS/SMB storage and troubleshoot containerized workloads. Perform root cause analysis (RCA) and implement preventive automation improvements. Coordinate with infrastructure teams for issues beyond the VDI layer. Required Skills Linux Administration (Ubuntu LTS & Rocky Linux) NVIDIA GPU-enabled Linux environments Ansible & Puppet Automox Git Lab CI/CDBash & Python scripting Infrastructure as Code (IaC) Docker & Kasm Workspaces SLURM & AWS DCVNFS/SMB Storage Nessus Linux OS Patching & Hardening Performance Tuning Scientific Runtime Environment (Lmod/Modules) Mandatory Requirements Strong Linux L2/L3 administration and troubleshooting experience. Hands-on experience with Ubuntu LTS and Rocky Linux. Experience managing NVIDIA GPU compute environments. Expertise in Ansible, Puppet, Automox, and Git Lab CI/CD. Strong automation and scripting skills using Bash and Python. Experience supporting Docker-based container platforms. Knowledge of SLURM, AWS DCV, and Kasm Workspaces is preferred. Experience with scientific software runtime and environment modules. Knowledge of NFS/SMB storage administration. Ability to provide on-site infrastructure support.