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# Network Engineer

- **Company:** European Tech Recruit
- **Location:** Spain
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Border Gateway Protocol, Computer Clusters, InfiniBand, Python (Programming Language), Machine Learning, Network Architecture, Ansible, AI Infrastructure, Graphics Processing Unit (GPU), Open Network Automation Platform
- **Published:** October 12, 2026
- **Apply:** https://www.jobleads.com/es/job/network-engineer--spain--eae1b11f99dc6ec202e246bf99b0ef25d

## About the Role

* 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-out environment with tight deadlines
 * Prior experience at a hyperscaler, neocloud/GPU-cloud provider, or NVIDIA/Mellanox background is a strong plus.

Nice to Have

 * Experience with NVIDIA DGX/HGX or GB200/GB300-class platform deployments
 * Background supporting AI/ML training or inference infrastructure specifically

## Description

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-out environment with tight deadlines
 * Prior experience at a hyperscaler, neocloud/GPU-cloud provider, or NVIDIA/Mellanox background is a strong plus.

Nice to Have

 * Experience with NVIDIA DGX/HGX or GB200/GB300-class platform deployments
 * Background supporting AI/ML training or inference infrastructure specifically

Why This Role

This is a rare opportunity to build fabric-level infrastructure for genuinely frontier-scale AI compute - tens of thousands of GPUs, exabyte-scale storage, and the newest hardware generation, during a period of hypergrowth, with real ownership over the network architecture from day one.