HPC Network Architect

What You’ll Do

• Architect high-performance networking solutions that power cloud platforms, with a focus on ultra-low-latency and high-bandwidth connectivity.
• Define the network topology and architectural patterns for large-scale GPU clusters, storage backends, and multi-tenant environments.
• Evaluate, benchmark, and select next-generation network technologies (e.g., InfiniBand NDR/XDR, RoCE, 400G-1.6T Ethernet, Ultra Ethernet, ESUN, OCI, etc) to meet AI workload requirements.
• Develop and maintain network architecture standards, reference designs, and scalability roadmaps for multi-site and hybrid environments.
• Partner with compute and storage architects to ensure seamless end-to-end data flow and fault tolerance.
• Guide network automation strategies and tooling to enable efficient provisioning, telemetry, and operational visibility.
• Mentor engineers and cross-functional teams on advanced network concepts, troubleshooting, and architectural best practices.

You

• Proven experience (7+ years) architecting high-performance data center networks, preferably for HPC, AI/ML, or large-scale cloud infrastructure.
• Deep expertise with InfiniBand (HDR/NDR) and advanced Ethernet fabrics, including RoCE and RDMA protocols.
• Strong understanding of data center switching architectures, congestion control (PFC, ECN), QoS, and network virtualization technologies such as VXLAN and EVPN.
• Skilled in designing for low-latency and high-throughput data paths, including GPU-to-GPU and storage traffic optimization.
• Expertise with BGP-based fabric design, including eBGP underlays, MP-BGP EVPN, ECMP, route policy, and convergence.
• Experience with SDN, APIs, automation, and network telemetry.
• Strong optical networking competency, including transceiver technologies, fiber types and topologies, link budgets, breakout architectures, and WDM.
• Experience building resilient, fault-tolerant high-performance network architectures with redundancy, failover, and high availability.
• Excellent communication and leadership skills, capable of influencing technical decisions across diverse teams.
• Strong ownership and can do attitude, self-starter who feels comfortable working in ambiguity.

Nice to Have

• Hands-on experience with AI workload profiling, collective communication patterns (e.g., NCCL, MPI), and network tuning for distributed training.
• Familiarity with network automation frameworks and telemetry tools.
• Exposure to DPU/SmartNIC technologies, including NVIDIA BlueField, or similar.
• Knowledge of large-scale, multi-site interconnect design, including DWDM or metro/long-haul networking.
• Experience collaborating with hyperscale or enterprise customers on highly customized network designs.