Staff Network Engineer (AI Fabric, Datacenter and Edge Networking) - Radian Arc

📋 Description

• Own AI fabric architecture for GPU networks across data centers and edge locations.
• Optimize AI GPU traffic for distributed training/inference (RoCE/RDMA, latency, throughput).
• Manage datacenter networking: BGP, ECMP, EVPN/VXLAN, VLAN/VRF, Linux networking.
• Ensure security and edge connectivity, including TLS termination and DDoS mitigation.
• Lead inter-datacenter networking, private connectivity, and high-capacity WAN links.
• Drive end-to-end delivery from architecture to production rollout.

🎯 Requirements

• Network engineering in large-scale datacenters; expert in BGP, OSPF, ECMP, EVPN/VXLAN.
• AI networking with GPU fabrics and RoCE/RDMA expertise.
• Strong NCCL workload understanding and its networking implications.
• RoCE optimization skills: PFC, ECN, congestion management, NCCL stalls diagnosis.
• Production infra experience with high-speed Ethernet, NVIDIA/Mellanox hardware.
• Automation: Python/Bash; observability and data analysis (PostHog or similar).

🎁 Benefits

• 100% remote work within Europe.
• Attractive compensation; contract or full-time options.
• Autonomy, collaboration, and international environment.
• Opportunity to shape networking standards and architecture from ground up.
• Exposure to AI fabrics, high-speed Ethernet, RoCE/RDMA, and edge computing.
• Career growth in a fast-growing scale-up at AI/cloud/telecom intersection.