Deep, demonstrable expertise in enterprise and cloud networking: routing protocols (BGP, OSPF), hybrid connectivity (AWS Direct Connect, Azure ExpressRoute, site-to-site VPN), hub-and-spoke and Transit Gateway topologies, IP address management, DNS architecture, network segmentation, and firewall design and rule governance. Extensive understanding of cloud computing platforms, especially AWS and Azure, including certifications such as AWS Solutions Architect, Microsoft Azure Solutions Architect, or Azure DevOps Engineer Expert.