Cisco, Juniper, Palo Alto, Cisco ISE, TACACS, AAA, BGP, OSPF, static routing, firewalls, routers, switches, network taps, PCAP, Wireshark, Cisco Secure Network Analytics, Stealthwatch, IDS, network monitoring tools, Python. This role requires strong hands-on experience with switching, routing, firewalls, network segmentation, AAA/TACACS, and network security monitoring.