L3 Network Support Engineer

2 days ago

Gurugram, India TalentOnLease Pvt Ltd. Full time

Description : 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, EIGRP- VPN Technologies : IPsec, SSL VPN, Remote Access VPNs- Monitoring Tools : Cisco Meraki Dashboard, Aruba Central, SolarWinds, PRTG- Other : DNS, DHCP, SNMP, NTP, QoS, Network Segmentation, HA/Redundancy ConceptsQualifications : - Bachelors degree in Computer Science, Information Technology, or related field.- 710 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 equivalent- Strong problem-solving and analytical skills.- Excellent communication and documentation skills (ref:hirist.tech)

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