Senior Linux Administrator

Overview

In this role you will own and grow Riverlane’s core HPC and Linux infrastructure to support cutting-edge quantum error correction research. You will lead day-to-day HPC cluster administration while shaping long-term plans for a scalable, fault-tolerant environment. You’ll work closely with the Infrastructure Team to ensure reliability, performance, and security for high-demand compute workloads. This is a chance to impact foundational software and hardware integration in a fast-paced, mission-driven company.

Pay / Benefits

• annual bonus plan
• private medical insurance
• life insurance
• contributory pension scheme
• equity
• 28 days annual leave

Responsibilities

• Administer and maintain the HPC cluster (compute nodes, storage, networking)
• Evolve cluster topology, node configuration and resource utilisation as the estate grows
• Deploy and troubleshoot HPC tooling, especially Slurm (queues and scheduling policies)
• Monitor performance and ensure high availability using observability tools (Prometheus)
• Manage network file storage for throughput and latency
• Patch, support and troubleshoot core Linux infrastructure (RHEL)
• Escalation point for complex issues; support HPC users
• Maintain Synopsys EDA tooling including licence management and performance tuning
• Improve self-service capabilities for users (e.g., password resets, VNC sessions)
• Automate routine tasks with Bash, Python, Ansible; plan improvements with Infrastructure Team
• Own work packages, meet sprint goals; build and maintain system documentation
• Ensure security, hardening, lifecycle management and disaster recovery readiness
• Maintain off-site backup strategy and data retention compliance
• Provide stakeholder updates on progress and improvements

Key requirements

• Extensive experience administering infrastructure in fast-paced engineering environments
• Enterprise Linux expertise (RHEL) including hardening and lifecycle management
• Hands-on with Slurm or similar job schedulers in distributed compute environments
• Strong understanding of network file storage and workload optimization
• Proficiency with containers and virtualization infrastructure
• Automation using Ansible, Python, Bash; infrastructure-as-code practices
• Experience with backup/recovery strategies and DR planning
• Experience managing licensed EDA tools (e.g., Synopsys) is a strong plus
• Excellent communication skills for technical and non-technical users

• strong communication
• supportive with users
• team collaboration
• Slurm scheduling
• RHEL administration and hardening
• HPC cluster architecture

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