Senior AI Systems Administrator Cambridge Permanent or Contract Most infrastructure roles stop at the software layer. This one starts at the rack. A mission-led, not-for-profit AI organisation in Cambridge needs a Senior AI Systems Administrator. Startups, enterprises, the public sector and academia share their compute and engineering effort to build AI responsibly, and you''ll be the person who keeps that compute running. You''ll provision and look after multi-rack GPU clusters used for both training and inference, working with everything from the hardware and fabric up to the orchestration layer. What you''ll be doing Deploying, tuning and managing modern GPU servers across several racks Building and running high-performance networks (InfiniBand, RDMA, RoCE), plus the switches, routers and firewalls around them Running Linux at an advanced level across several distributions (Ubuntu, RHEL), including hosts running hypervisors and VMs Managing the estate as code with Git and Terraform/OpenTofu Working closely with researchers and engineers to keep improving how the systems perform What you''ll bring Significant experience as a Systems Administrator, HPC Engineer, MLOps Engineer or similar Hands-on GPU server deployment and tuning Strong InfiniBand/RDMA/RoCE knowledge and solid network design skills Advanced Linux, virtualisation, Git and infrastructure-as-code experience A collaborative approach: you like working with the people who use the systems Bonus points for: ..... full job details .....