Network L3 Support_P_3rd Nov
2 days ago
Key Responsibilities:L3 Network Support & Troubleshooting:Provide advanced (Level 3) support for escalated incidents related to Cisco Firewalls, Meraki Switches, and Aruba Wireless networks.Perform deep-dive troubleshooting for routing, switching, wireless, and security-related issues.Analyze root causes and implement permanent fixes for recurring problems.Configuration & Maintenance:Configure, manage, and maintainCisco ASA / Firepower / FTDfirewalls including VPNs, ACLs, and NAT policies.ManageMeraki MS series switches—VLANs, trunking, L3 routing, link aggregation, and port security.Deploy and supportAruba Wirelessinfrastructure including controllers, access points, and wireless SSIDs.Monitoring & Performance Optimization:Monitor network health using tools likeMeraki Dashboard,Aruba Central, andSolarWinds.Identify and resolve performance bottlenecks and connectivity issues.Optimize configurations to improve reliability, redundancy, and security.Security & Compliance:Manage network security configurations and policies.Conduct periodic audits and ensure compliance with organizational security standards.Collaboration & Documentation:Collaborate with L2 teams for escalations and provide mentoring or training as needed.Maintain updated documentation on configurations, network diagrams, and standard operating procedures.Technical Skills Required:Firewalls:Cisco ASA / Firepower / FTD (Policy Management, VPN, NAT, Access Control)Switching:Cisco Meraki MS Series (L2/L3 switching, VLANs, Spanning Tree, EtherChannel)Wireless:Aruba Access Points & Controllers (SSID management, radio tuning, roaming, authentication)Routing Protocols:OSPF, BGP, EIGRPVPN Technologies:IPsec, SSL VPN, Remote Access VPNsMonitoring Tools:Cisco Meraki Dashboard, Aruba Central, SolarWinds, PRTGOther:DNS, DHCP, SNMP, NTP, QoS, Network Segmentation, HA/Redundancy ConceptsQualifications:Bachelor’s degree in Computer Science, Information Technology, or related field.7–10 years of hands-on experience in enterprise network support (L3 level).Certifications Preferred:Cisco Certified Network Professional (CCNP Security / CCNP Enterprise)Meraki Certified (CMNA/CMNO)Aruba Certified Mobility Professional (ACMP) or equivalentStrong problem-solving and analytical skills.Excellent communication and documentation skills.
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