HPC Network Architect for AI Clusters

CommonAI CIC in Cambridge seeks a senior network architect to design and deliver the physical networks for our Scaling Inference Lab. You will own cabling, topology, switch layout and BOMs across out-of-band, frontend/storage and accelerator fabrics, coordinating with vendors and internal teams.

Experience with InfiniBand, RoCE, OSFP/QSFP-DD optics and dense cabling is essential. You will communicate designs to installers and project managers, support bring‑up and fault‑finding, and travel