Network Engineer - AI Infrastructure Fabric (IB/Spectrum-X, BGP) Our client is a fast-scaling AI infrastructure operator building out next-generation GPU compute campuses across multiple European countries, supporting some of the largest AI training and inference workloads in the region. They're in the middle of an aggressive multi-site build-out, six deployments across four countries, and need experienced network engineers who can design and operate the high-speed fabric that ties tens of thousands of GPUs together. The Role You'll own the design, build, and operation of the network fabric connecting large-scale GPU clusters, including InfiniBand / NVIDIA Spectrum-X fabrics, plus the BGP routing at the network edge that connects these sites to the wider internet and to each other. This is hands-on, high-stakes infrastructure work: the fabric you build directly determines how efficiently thousands of GPUs can train and serve AI models. What You'll Do * Design, deploy,



and operate InfiniBand and/or NVIDIA Spectrum-X fabric across multiple GPU cluster deployments * Own BGP routing and edge network architecture across sites in Germany, the Netherlands, and Spain * Work directly with platform and facility engineering teams during new site bring-up, ensuring fabric performance meets the demands of GB200/GB300-class GPU hardware * Troubleshoot fabric-level performance issues affecting distributed training and inference workloads * Build and maintain network automation to manage fabric configuration at scale * Participate in an on-call rotation supporting live production fabric across sites What We're Looking For * Experience with InfiniBand and/or NVIDIA Spectrum-X fabric design and operation at scale * Strong BGP and EVPN routing expertise, ideally including spine-leaf architectures * Experience with fabric management tooling (e.g. NVIDIA UFM or equivalent) * Network automation experience (Python, Ansible, or similar) * Comfort working in a fast-moving, multi-site build-

📌 Network Engineer (Región de Murcia)
🏢 European Tech Recruit
📍 Región de Murcia