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 maintain Cisco ASA / Firepower / FTD firewalls including VPNs, ACLs, and NAT policies.
- Manage Meraki MS series switches —VLANs, trunking, L3 routing, link aggregation, and port security.
- Deploy and support Aruba Wireless infrastructure including controllers, access points, and wireless SSIDs.
- Monitoring & Performance Optimization :
- Monitor network health using tools like Meraki Dashboard , Aruba Central , and SolarWinds .
- 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.