Senior Network Architect for GPU and AI Infrastructure. Job in London Move Collective Jobs

Stealth AI Infrastructure Company

We are hiring a Senior Network Architect for a stealth AI infrastructure company building large scale GPU compute infrastructure for frontier AI customers.

This is not a standard data centre networking role.

The company is building AI factories at industrial scale, where the network fabric is as critical as the compute itself. A routing issue, congestion event or weak fabric design can directly impact customer training workloads.

This person will own network architecture across GPU fabric, InfiniBand, RoCE v2, Ethernet leaf spine, edge connectivity, peering, observability, deployment standards and operational handover.

• Deep GPU cluster or HPC deployment experience
• Strong InfiniBand production experience
• RoCE v2 experience at scale
• Ethernet fabric experience across BGP, ECMP and low latency operations
• IPv6 and public ASN experience
• Multi vendor experience across environments such as NVIDIA Mellanox, Arista, Juniper, Cisco, whitebox or ODM hardware
• Experience from a neo cloud, hyperscaler, major vendor, GPU infrastructure company, HPC platform or AI infrastructure provider

• You must have worked on real GPU deployments
• You must have multi vendor network experience
• You must come from a relevant AI infrastructure, hyperscale, vendor or HPC environment

Single vendor specialists or traditional enterprise networking profiles will not be the right fit.

This is the first senior network hire and will set the standards future engineers build and operate against.

If you have built, deployed or operated network fabrics for serious GPU infrastructure, this is a rare opportunity to shape the foundation of one of the most ambitious AI infrastructure builds in the market.