Senior Network Engineer - Contract

Senior Network Engineer | HPC/ AI Infrastructure | Outside IR35 6 month contract Based London Help build the ultra-fast network backbone behind next-generation AI. As a Senior Network Engineer , you’ll architect, deploy, and operate the ultra-low-latency network fabric that powers our GPU clusters. You\’ll work closely with our Systems, DevOps, and AI Platform teams to design fault-tolerant, high-throughput networks tailored for cutting-edge machine learning workloads. What you’ll do: Design and scale leaf-spine fabrics with Mellanox + Cumulus Deploy and manage Juniper PTX routers and SRX firewalls Automate infrastructure with Ansible and Python Monitor and tune networks for high-volume AI workloads Own incident response and drive root-cause analysis What you’ll bring: ~3–5+ years in HPC \”High performance computing\” OR AI networking, supporting GPU clusters ~ Deep knowledge of BGP, EVPN, VXLAN, MPLS ~ Hands-on with Mellanox switches, Cumulus Linux, and Juniper ~ Strong Linux CLI and network automation skills (Ansible, Python) Bonus if you have: ~ JNCIE/CCIE, hybrid cloud networking (AWS/Azure), and experience with network telemetry If that sounds like you please connect.