Designs, deploys, optimizes, and supports Telstra’s international voice, IPX, mobility, and roaming networks. The role covers carrier-grade routing, switching, firewalls, signalling, virtualisation, NFV, cloud-native platforms, orchestration, automation, and network security. Responsibilities include technical leadership, architecture and design reviews, troubleshooting, lifecycle management, resiliency, security patching, controlled implementations, vendor coordination, and technology roadmap development.