Senior Linux Systems Administrator

CommonAI C.I.C.; Cambridge; On-site; GBP 60,000 - 80,000; Full time

Job summary

A non-profit tech organization in Cambridge seeks a Senior Linux Systems Administrator to manage multi-rack GPU server clusters. The ideal candidate should have advanced Linux and scripting skills, experience with hypervisors, and networking knowledge. This role offers a collaborative work environment, competitive salary, and opportunities for professional growth. Join us to make a meaningful impact in AI technology development.

Benefits

Collaborative work environment

Professional development opportunities

Competitive salary package

Networking opportunities

Qualifications

• Significant experience as a System Administrator or equivalent role.
• Experience working with multiple Linux distributions.
• Strong understanding of network and firewall configuration.

Responsibilities

• Provision and maintain multi-rack GPU server clusters.
• Collaborate with users to optimise systems.
• Travel to data centres to install equipment.

Skills

Advanced Linux skills

Scripting (Python, Bash)

Source code management (Git)

Infrastructure-as-code tools (Terraform, OpenTofu)

Network design

Working with hypervisors/VMs

Tools

GPU server deployment tools

Storage servers/clusters (Lustre, Ceph, NFS)

Job description

Overview

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CommonAI CIC is a non-profit membership organisation, founded on a belief in collaborative engineering for the safe and responsible development of foundational AI technologies. A place where AI startups, enterprises large and small, public sector bodies and academia can share resources and knowledge, to codevelop and grow businesses, fast.

Responsibilities

We are seeking a highly skilled Senior Linux Systems Administrator to join our rapidly growing engineering team. You will provision and maintain multi-rack GPU server clusters designed for both inference and training workloads. This role is perfect for a hands-on engineer who thrives on the intersection of cutting-edge high-end hardware and complex software orchestration.

Requirements

• Significant experience working as a professional System Administrator or equivalent technical role
• Advanced Linux skills and experience working with servers running hypervisors/VMs and multiple distributions (e.g. Ubuntu, RHEL)
• Proficiency in scripting (e.g. Python, Bash), source code management (e.g. Git) and infrastructure-as-code tools (e.g. Terraform, OpenTofu)
• A strong understanding of network design and switch/router/firewall configuration
• The desire to work collaboratively with users and other stakeholders to iteratively optimise systems
• The ability to travel to data centres and install rack-mounted equipment

Experience with any or all of the following will also be highly valued:

• Modern GPU server deployment, tuning and management
• High-performance or high-availability storage servers/clusters (Lustre, Ceph, NFS)
• Advanced networking technologies (Infiniband, RDMA, RoCE)
• HPC workload managers (Slurm, LSF)

Our infrastructure is used for research and development. Support will generally only be required during UK business hours however major maintenance may occasionally be scheduled for weekends.

Benefits

• A collaborative and supportive work environment
• The opportunity to have a high impact in a growing organisation
• Competitive salary package and pension
• Professional development opportunities
• Networking opportunities with influential people from across the tech sector and academia
• A vibrant office environment located a few minutes' walk away from Cambridge train station

CommonAI CIC is an equal opportunity employer and is committed to creating an inclusive and diverse workplace.