Senior Network Engineer - HPC/ AI/ GPU (London Area)

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.