Senior HPC Engineer - Hybrid - Inside IR35

We are looking for an experienced Senior HPC Engineer to support and maintain a scientific computing environment, with a strong focus on RHEL, Slurm and HPC infrastructure.

You will work closely with research scientists and technical teams to ensure HPC services are secure, reliable and high performing., * Administer, patch and maintain RHEL 7, 8 and 9 across HPC clusters and workstations.

• Deploy, configure and manage Slurm, including queues, partitions and scheduling.
• Monitor cluster health, performance, storage, networking and resource utilisation.
• Install and support scientific applications, compilers, libraries and MPI environments.
• Work with scientists to optimise workloads and resolve application issues.
• Troubleshoot hardware, operating system, scheduler and application problems.
• Manage incidents and service requests through ServiceNow.
• Collaborate with storage, networking, security and DevOps teams.

• 10+ years’ enterprise IT experience, including 3-5+ years in HPC or research computing.
• Strong hands-on experience with RHEL 7, 8 and 9.
• Proven experience managing HPC clusters and Slurm.
• Experience supporting scientific or research applications on Linux.
• Strong troubleshooting and root-cause analysis skills.
• Experience with ServiceNow or a similar ITSM platform.
• Strong communication and stakeholder-management skills.
• Able to work onsite in Stevenage 3 days per week.

Desirable Skills

• Docker or container technologies.
• Ansible or similar automation tools.
• GPU computing, CUDA and GPU-accelerated workloads.
• OpenMPI, MPICH or other MPI libraries.
• InfiniBand and high-speed networking.
• Web server and SSL certificate management.
• RHCSA, RHCE or equivalent Red Hat certification.