p We are looking for a b Senior Network Interconnect Engineer.
/b The successful candidate will design, deploy, and operate production-grade b InfiniBand /b and b AI-optimized Ethernet /b fabrics, ensuring scalability, performance, and reliability for research institutions and enterprise customers across Italy and Europe.
p 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.
/pp Sebbene l'esperienza competente e le qualifiche siano fondamentali per questo ruolo, si assicuri di verificare di possedere le soft skill preferenziali, se richieste, prima di candidarsi.
brpb Key Responsibilities: /b /pulli 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).
/lili Bring up, tune, troubleshoot, and operate b InfiniBand XDR / NDR /b (Quantum-3 / Quantum-2) and b Ethernet /b AI-optimized fabrics: subnet manager (OpenSM) configuration, partitioning, QoS, adaptive routing, congestion control, and performance counters.
/lili Design and operate Spine-Leaf datacenter fabrics with b BGP / EVPN / VXLAN /b , multi-fabric and multi-site interconnect, across switch ecosystems including Mellanox SN, SONiC, Dell OS10 etc.
/lili 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.
/lili Instrument fabric observability: sFlow, IPFIX, streaming telemetry (gNMI), Prometheus exporters for switch fabric; correlate with the team's monitoring stack and drive capacity planning.
/lili Contribute to RD and presales initiatives: author the networking sections of EuroHPC JU and EU bids; participate in technology scouting on DPU (BlueField-3+), CXL fabric, photonic interconnect, and Ultra Ethernet Consortium developments.




/lili Write and maintain b runbooks /b — step-by-step operational procedures with explicit go / no-go gates and rollback paths — for fabric bring-up, upgrade, and incident response workflows.
/lili Mentor junior and mid-level engineers in the team on advanced networking and fabric operations.
/li /ul pb Education: /b /pp Master's degree or Ph.D. in Telecommunications, Computer Networks, Computer Science, or a related STEM field — or equivalent practical experience, including: /pullib4+ years /b of hands-on engineering experience in datacenter networking and high-speed interconnect.
/lilib2+ years /b of direct experience operating InfiniBand fabrics in production (subnet management, troubleshooting, performance tuning).
/lilib2+ years /b of hands-on Spine-Leaf datacenter fabric design and operations at scale (BGP / EVPN).
/li /ul pb SKILLS AND COMPETENCES /b /p pb Core Technical Skills: /b /pullib InfiniBand: /b Mellanox HCA (ConnectX-6 / 7 / 8, BlueField), Quantum-2 / 3 switches, OpenSM configuration and tuning, IB performance counters, IB-to-Ethernet gateway.
/lilib Ethernet AI fabric: /b Spectrum-X, RoCEv2 with DCQCN / HPCC, PFC tuning, adaptive routing, congestion control.
/lilib Network protocols: /b BGP (including EVPN), OSPF, MP-BGP, VXLAN, Geneve, MLAG, MC-LAG, RSTP, LLDP.
/lilib Linux networking: /b netlink, tc qdisc, eBPF for networking, XDP basics.
/lilib Automation Infrastructure as Code: /b Python (production quality), Ansible with custom modules and Bash scripting.
Go is a plus.
/lilib Problem-Solving Documentation: /b Systematic troubleshooting methodology across hardware, firmware, driver, and OS layers.
Ability to write design documents, RCA reports, and runbooks.
/lilib Communication: /b Fluent English (working language with Mellanox / NVIDIA / Dell engineering); clear written and verbal communication for vendor, customer, and internal audiences.
/li /ul pb Nice-to-Have Skills:



/b /ppb Fabric management orchestration platforms /b /pullib NVIDIA UFM /b (Enterprise / Telemetry / Cyber-AI) for InfiniBand fabric management and anomaly detection.
/lilib NVIDIA NetQ /b for Cumulus / SONiC fabric telemetry.
/lilib Dorado Cruz /b (Cruz Fabric Controller / Operations Center) for multi-vendor SONiC fabric orchestration.
/lili Exposure to intent-based platforms such as Juniper Apstra, Cisco Nexus Dashboard, or Arista CloudVision.
/li /ul pb Soft Skills: /b /pulli Strong technical leadership and team coordination skills.
/lili Excellent communication and stakeholder management abilities.
/lili Mentoring mindset with a passion for developing team members.
/lili Strong analytical, problem-solving, and decision-making skills.
/lili Ability to prioritize, organize, and deliver results in dynamic environments.
/lili Collaborative approach with experience working across cross-functional teams.
/lili Proactive attitude, strong sense of ownership, and commitment to continuous improvement.
/lili Adaptability and resilience in fast-paced, mission-critical environments.
/li /ul pb Working environment: /b /pullib Remote work /b — Flexibility to work from anywhere in Italy, with no hybrid mandate; on-site presence required only about once a month, with travel covered by the company.
/lilib Objective-based work /b — Clear, measurable objectives reviewed and updated throughout the year, with a structured growth path and access to cutting-edge interconnect technology in production.
/lilib On-site missions /b — The role involves periodic on-site engagements at customer and partner facilities in Italy and across the EU (cluster bring-up, vendor PoC, co-deployment), with travel covered by the company.
/lilib RAL /b : ******,00 € /li /ul pb Early Career Opportunities /b /pp While this position targets experienced engineers, b we are also building the next generation of networking specialists /b .
If you have a solid technical foundation, strong curiosity, and a passion for high-performance networking, we encourage you to apply even if you do not yet meet every requirement.
xrdbqlu Junior engineers will have the opportunity to grow through mentorship.
/p /p /p

📌 Senior Network & Interconnect Engineer (Rubiera)
🏢 Azienda Anonima
📍 Rubiera