Senior IT Systems Administrator (Linux & HPC)

In this role you will own the Linux and HPC platform stack, delivering secure, reliable enterprise and research-computing environments. You will manage Linux systems, HPC clusters, and workload scheduling while ensuring performance and resilience at scale. You’ll work with cross-functional teams to diagnose cross-domain issues and drive continuous improvement. The role offers hands-on technical ownership and operates across on-premise and cloud-enabled HPC platforms.

• competitive benefits
• professional development

• Administer, patch, harden and upgrade Linux server platforms (Red Hat Enterprise Linux or equivalent)
• Manage core Linux services (identity, SSH, DNS, time, repos, filesystems, logging, scheduled tasks)
• Automate tasks with shell scripts and configuration-management/orchestration tools
• Monitor performance, availability and security; resolve cross-system issues
• Maintain build standards, documentation and runbooks
• Operate and support HPC clusters (SLURM: queues, partitions, policies, jobs, accounting)
• Support NVIDIA Base Command Manager and Azure CycleCloud for cluster provisioning and lifecycle management
• Collaborate with engineers and users to diagnose job, compiler and MPI issues; plan maintenance activities
• Administer hardware lifecycle, Cisco compute platforms, and NetApp storage integration
• Troubleshoot networking, storage connectivity and end-to-end dependencies
• Apply secure configuration, backup/DR recovery, incident response and change management processes
• Provide technical guidance and knowledge transfer to colleagues and service-desk teams

• Hands-on Linux administration experience in complex enterprise or research environments
• Experience supporting HPC clusters and diagnosing cross-layer issues
• Strong SLURM administration and workload troubleshooting
• Bash or similar scripting for task automation
• Experience with Linux performance, patching, security hardening and vulnerability remediation
• Experience with shared file services (NFS, permissions, throughput)
• Networking fundamentals and distributed-system dependencies
• Experience delivering controlled technical change and maintaining documentation in ITSM
• Bachelor's degree in computing, engineering or related field or equivalent
• Desirable: experience with NVIDIA Base Command Manager, Bright Cluster Manager, NetApp, InfiniBand, MPI workloads, Ansible, Git, virtualization/containers
• Desirable: certifications in Linux, HPC, Cisco, NVIDIA (advantageous)

• Independent working style
• Strong communication to specialists and non-specialists
• Attention to detail and operational discipline
• Linux administration (RHEL or equivalent)
• HPC cluster management
• SLURM workload scheduler