Linux Specialist

Overview

This role focuses on providing advanced Linux system administration and support, specifically at Level 2 and Level 3, to troubleshoot and resolve complex issues. The position involves maintaining and optimizing Linux infrastructure with a focus on scientific computing and GPU workloads.

Key Duties

• Deliver expert support for Linux systems, addressing complex incidents and system errors.
• Troubleshoot core Linux operating system challenges, including boot failures, kernel problems, and service disruptions.
• Manage OS patching processes, vulnerability assessments, and enhance system security through hardening practices.
• Optimize performance metrics related to CPU, memory, storage, and particularly NVIDIA GPU workloads.
• Create and maintain automation scripts and configurations using Ansible, Puppet, Bash, and Python.
• Oversee infrastructure lifecycle management via GitLab CI/CD pipelines and infrastructure-as-code principles.
• Support virtual desktop infrastructure tools such as SLURM, AWS DCV, Docker, and Kasm Workspaces.
• Configure scientific runtime environments utilizing Lmod or Environment Modules systems.
• Administer and manage Linux agents including Automox, Nessus, and Puppet for security and maintenance.
• Support network storage solutions such as NFS and SMB; also troubleshoot issues with containerized workloads.
• Conduct root cause analysis to identify underlying problems and develop automation to prevent recurrence.
• Liaise with broader infrastructure teams to resolve issues beyond the VDI environment.

Required Expertise

• Proficient in Linux administration of Ubuntu LTS and Rocky Linux distributions.
• Experience working with NVIDIA GPU-enabled Linux systems.
• Strong familiarity with automation tools such as Ansible, Puppet, Automox, and GitLab CI/CD.
• Skilled in scripting languages including Bash and Python for system automation.
• Practical knowledge of Docker, Kasm Workspaces, SLURM, and AWS DCV virtual desktop technologies.
• Expertise in Linux OS patching, system hardening, and performance tuning.
• Experience managing scientific environment modules using Lmod or similar.
• Competence administering NFS and SMB network storage.
• Capability to provide onsite support in an infrastructure environment.

Additional Notes

The position requires robust troubleshooting skills and the ability to collaborate with multi-disciplinary infrastructure teams. Experience with scientific runtime environments and GPU compute workloads is essential due to the specialized nature of the infrastructure support.