Responsibilities: of the Senior Principal Network Engineer: Deep expertise in routing/switching and enterprise/data center network design (BGP, OSPF, EIGRP, MPLS, VXLAN, EVPN), Strong experience with Cisco platforms and security technologies (Catalyst, Nexus, NGFW, ACI, Meraki)., Utilize advanced routing and switching technologies (BGP, OSPF, EIGRP, MPLS, VXLAN, EVPN), Cisco platforms (Catalyst, Nexus, NGFW, ACI, Meraki), and automation tools (Python, Ansible, and similar) to optimize and modernize enterprise and data center network environments.