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

📋 Description

• Design, deploy, and operate high-performance GPU networking fabrics for distributed AI workloads.
• Optimize AI performance: east-west traffic, latency, throughput, reliability.
• Own Layer 2/3 datacenter networking: BGP, ECMP, EVPN/VXLAN, OVS/OVN, Linux networking.
• Design north-south connectivity, WAFs, TLS termination, DDoS mitigation, gateway infra.
• Inter-datacenter networking: private connectivity, DWDM, inter-site BGP, redundancy.
• Lead infrastructure initiatives from lab validation to production rollout.

🎯 Requirements

• Network engineering: large-scale datacenter networks; BGP, OSPF, ECMP, EVPN/VXLAN.
• AI networking: GPU fabrics for distributed AI workloads; RoCE/RDMA expertise.
• GPU communication: NCCL patterns (all-reduce, all-gather, broadcast, reduce-scatter).
• RoCE optimization: RoCE fabrics, PFC/ECN, diagnose NCCL stalls and congestion.
• Production infra: high-speed Ethernet, NVIDIA/Mellanox gear, high-performance interconnects.
• Systems troubleshooting: cross-layer debugging across hardware, firmware, Linux, and apps.

🎁 Benefits

• Attractive compensation aligned with expertise and market.
• Full-time or contract engagement depending on arrangement.
• 100% remote work within Europe.
• Flexible, international work environment emphasizing autonomy and collaboration.
• Opportunity to shape architecture and standards in AI infra space.
• Exposure to AI fabrics, high-speed Ethernet, RoCE/RDMA, GPU infra, and edge computing.