Senior Linux Administrator

Job summary
Permanent contract
Cambridge
Occasional remote
Salary: £60K to 75K
Experience: > 5 years
Skills & expertise
Communication skills
Automation tools
Red hat
Windows
Linux
+5
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Riverlane
Riverlane

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Questions and answers about the job

The position

Job description

  • Riverlane is looking for an experienced Linux administrator to own and grow its core computational infrastructure. This is a hands-on role combining day-to-day administration of the High-Performance Computing (HPC) environment with longer-term planning, automation, and improvement of the infrastructure estate
  • You’ll be the primary owner of the HPC cluster and core Linux infrastructure, working closely with IT management and the wider Infrastructure Team to keep systems reliable today while building towards a more resilient, scalable environment for tomorrow
  • Administer and maintain the HPC cluster, including compute nodes, storage systems, and networking
  • Evaluate and evolve cluster topology, compute node configuration, and hardware resource utilisation as the estate grows
  • Lead the deployment, configuration, and troubleshooting of HPC tooling, particularly Slurm—including queue structures and job scheduling policies
  • Monitor system performance and ensure high availability of HPC resources using observability tools such as Prometheus; investigate anomalies and outages
  • Assess and maintain the network file storage solution for throughput, scalability, and latency
  • Maintain, patch, and troubleshoot core Linux infrastructure (RHEL)
  • Act as an escalation point for complex technical issues raised by the Riverlane team
  • Provide operational upkeep of core infrastructure, including servers, tooling, and licence managers
  • Maintain Synopsys EDA tooling, including licence server management, environment configuration, and performance optimisation for electronic design automation workflows
  • Provide sound technical support to users of the HPC environment
  • Improve self-service capability for users, enabling routine tasks (e.g. restarting VNC sessions and resetting passwords) to be performed without engineering intervention
  • Automate routine tasks using scripting and infrastructure-as-code tools (Bash, Python, Ansible)
  • Collaborate with the Infrastructure Team to plan and implement improvements to HPC infrastructure
  • Own work packages and deliver them within agreed sprint windows
  • Build and maintain documentation for systems, processes, and configurations
  • Communicate effectively with stakeholders on progress and delivered improvements
  • Ensure security and compliance across the HPC estate, including security hardening and lifecycle management
  • Maintain and develop the off-site backup strategy, ensuring data integrity, disaster recovery readiness, and compliance with data retention policies

Benefits

  • Equity so that our team can share in the long-term success of Riverlane
  • 28 days annual leave plus bank holidays and enhanced family leave
  • Private medical insurance, life insurance and a contributory pension scheme

Preferred experience

  • Women and other underrepresented groups may be less likely to apply for a role unless they meet all or nearly all of the requirements. If this applies to you, we still encourage you to apply - you may be a great fit, even if you don’t meet every single qualification. We’d love to hear from you
  • Experience managing licensed EDA or similar specialist software tooling (e.g. Synopsys) is a strong plus
  • Excellent communication skills, with the ability to support both technical and non-technical users and translate complex issues into clear guidance
  • Hands-on experience configuring, scaling, tuning, and troubleshooting job schedulers (e.g. Slurm) and distributed compute environments
  • Extensive experience administering and growing infrastructure in fast-paced engineering environments
  • Proficiency with container environments and virtualisation infrastructure
  • Deep knowledge of Red Hat Enterprise Linux (RHEL) administration, security hardening, lifecycle management, and troubleshooting
  • Experience with backup and disaster recovery strategy and implementation
  • High proficiency with infrastructure automation tools (Ansible, Python, Bash) and infrastructure-as-code practices
  • A strong understanding of network file storage protocols and network optimisation for computational workloads

Recruitment process

  • Please upload a CV and covering letter by clicking ‘Apply’. Your covering letter should explain why you are applying for the job and what skills and experience you can bring to the role

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