Nat, Multicast, IP MPLS Routing, Layer 2 Technologies LAG MC-LAG Virtual Chassis, Data Center Networking, MPLS Segment Routing L2VPN L3VPN, Competitive networking platforms such as Cisco Arista Nokia or equivalent, EVPN-VXLAN, Service Provider Architectures, IPSec and Security technologies, Routing Protocols BGP OSPF ISIS, AI-assisted engineering, Automation practices, Gre, Network Automation Frameworks, Juniper networking technologies, High Availability and Resiliency Designs, Containerization and Kubernetes, CLOS and Spine-Leaf Architectures, Python and API-driven Network Automation