We are looking for a Senior Network & Interconnect Engineer. The successful candidate will design, deploy, and operate production-grade InfiniBand and AI-optimized Ethernet fabrics, ensuring scalability, performance, and reliability for research institutions and enterprise customers across Italy and Europe.
The role involves designing and operating Spine-Leaf datacenter fabrics (InfiniBand and Ethernet with BGP/EVPN/VXLAN), leading technical escalations with NVIDIA Networking, and evaluating next-generation interconnect technologies such as DPUs, CXL fabrics, photonic networking, and Ultra Ethernet.
Sebbene l'esperienza qualificato e le qualifiche siano fondamentali per questo ruolo, si assicuri di verificare di possedere le soft skill preferenziali, se richieste, prima di candidarsi.
Key Responsibilities:
- Design datacenter fabric and HPC interconnect end-to-end: topology selection (fat-tree, dragonfly, rail-optimized), oversubscription, bisection bandwidth targets, failure-domain design, and integration with storage backends (Ceph, VAST, WEKA, BeeGFS over IB / RoCE).
- Bring up,



tune, troubleshoot, and operate InfiniBand XDR / NDR (Quantum-3 / Quantum-2) and Ethernet AI-optimized fabrics: subnet manager (OpenSM) configuration, partitioning, QoS, adaptive routing, congestion control, and performance counters.
- Design and operate Spine-Leaf datacenter fabrics with BGP / EVPN / VXLAN, multi-fabric and multi-site interconnect, across switch ecosystems including Mellanox SN, SONiC, Dell OS10 etc.
- Own the physical layer of AI Factory and HPC cluster networking: optical cabling design (BiDi, parallel optics, DAC, AOC), OOB management, patching matrix, and power and space planning in collaboration with the Operations and Facilities teams.
- Instrument fabric observability: sFlow, IPFIX, streaming telemetry (gNMI), Prometheus exporters for switch fabric; correlate with the team's monitoring stack and drive capacity planning.
- Contribute to R&D; and presales initiativ

📌 Senior Network (Italia)
🏢 Azienda Anonima
📍 Italia