Diagnose and resolve complex Layer 2/Layer 3 network issues across Enterprise Environments, Design, configure, and deploy scalable and secure network infrastructure solutions, Provide Tier 3 escalation support for incidents unresolved by Tier 1 and Tier 2 teams, Administer and troubleshoot enterprise-grade routing, switching, firewalls, VPN, and load balancing technologies, Required Skills and Technologies: Must-Have 5+ years network engineering in medium to large enterprise Deep knowledge of TCP/IP, BGP, OSPF, EIGRP Experience with Cisco, Juniper, or similar enterprise-grade equipment Network monitoring and diagnostic tools (e-g , Wireshark, Netflow, Prime, Catalyst Center, vManage [Cisco Viptela SDWAN]) Strong troubleshooting and analytical skills Nice-to-Have Network automation (Python, Ansible) Solarwinds Netflow Fortigate / FortiManager / FortiAuthenticator / FortiAnalyzer MPLS/VPLS Cellular Gateways/Technology (OpenGear/Cradlepoint) Key Protocols and Technologies Routing Protocols: OSPF, BGP, EIGRP (especially for hybrid environments) Switching Technologies: VTP, RSTP/MSTP, Private VLANs, Port Security Wireless Protocols: 802 11a/b/g/n/ac/ax, WPA2/WPA3, RADIUS/802 1X SD-WAN Protocols: OMP (Overlay Management Protocol), IPSec, DTLS, BFD Network Services: DHCP Snooping, ARP Inspection, NetFlow, SPAN/RSPAN Security: ACLs, Zone-Based Firewall, AAA, ISE integration Monitoring & Management: SNMP, Syslog, NetFlow, Cisco Prime, DNA Center Certifications preferred: Cisco Certified Network Professional (CCNP) Enterprise Cisco Certified Specialist Enterprise Core (ENCOR)
