• Manage and grow a team of network engineers responsible for datacenter fabrics, interconnects, and global WAN connectivity. Provide mentorship, technical guidance, and clear ownership boundaries. • Define and evolve network designs for GPU-heavy clusters, including spine-leaf topologies, ECMP routing, and high-bandwidth east-west traffic patterns. • Oversee design and operation of InfiniBand and RoCE-based fabrics supporting distributed training and inference workloads. Ensure performance, loss characteristics, and congestion control meet AI workload requirements. • Guide implementation and operations of encapsulation technologies such as VXLAN, EVPN, Geneve, or similar, enabling scalable multi-tenant isolation and flexible network provisioning. • Lead strategy and execution for global WAN connectivity, including private backbone links, IX connectivity, and hybrid connectivity with cloud providers and partners. • Establish operational best practices for monitoring, capacity planning, change management, incident response, and post-mortems across the network stack. • Partner closely with Infrastructure, SRE, Hardware, and Product Engineering teams to ensure network capabilities align with platform and customer requirements. • Work with hardware vendors, colocation providers, and transit partners on network design, procurement, deployment timelines, and escalations. • Ensure network designs support secure isolation, DDoS resilience, and compliance requirements without compromising performance.