Job Title : Network Lead Administrator (L3) - Data Centre & Security

Location : Bangalore, Hyderabad, Chennai, Pune, Mumbai, Coimbatore

Employment Type : Full-time | Permanent

Experience Required : 6 to 10 Years

About the Role :

We are looking for a highly skilled Network Lead Administrator (L3) with strong expertise in enterprise network operations, troubleshooting, and implementation across large-scale environments. This role requires hands-on experience with LAN/WAN, Data Center technologies, SD-WAN, and Network Security platforms.

The candidate will act as an individual contributor responsible for resolving complex network issues, ensuring high availability, and supporting critical infrastructure.

Key Responsibilities :

- Manage and support enterprise network infrastructure (LAN/WAN/Data Center)

- Perform advanced troubleshooting (L3 level) for network incidents and outages

- Configure and maintain routing and switching environments

- Work on SD-WAN deployments and operations

- Handle network security devices such as Firewalls, VPNs, IDS/IPS

- Manage and troubleshoot wireless infrastructure (WLC, Access Points)

- Ensure network uptime, performance optimization, and incident resolution

- Collaborate with cross-functional teams for implementation and upgrades

- Participate in change management and incident management processes

- Provide root cause analysis (RCA) for major incidents

Required Skills & Technical Expertise :

Networking :

- Strong experience in Routing & Switching (R&S)

- Hands-on with Cisco and Aruba devices

- Knowledge of protocols : BGP, OSPF, EIGRP, VLAN, STP

Data Center :

- Experience with Data Center network architecture

- Spine-Leaf architecture knowledge is a plus

SD-WAN :

- Hands-on experience with SD-WAN technologies (Cisco Viptela / Meraki preferred)

Network Security :

- Firewalls (Cisco ASA, Palo Alto, Fortinet)

- VPN technologies (IPSec, SSL VPN)

- IDS/IPS concepts

Wireless :

- Configuration & troubleshooting of WLC and Access Points

- Vendors : Cisco, Aruba, Juniper

Tools & Platforms :

- Cisco tools and monitoring systems

- Network monitoring tools (SolarWinds, Nagios, etc.)

- ITIL-based ticketing systems

Soft Skills :

- Strong problem-solving and analytical thinking

- Ability to work in 24x7 rotational shifts

- Excellent communication skills

- Ability to work independently (Individual Contributor role)

Must have : Network Engineer, L3 Support, Cisco, Aruba, SD-WAN, Network Security, Data Center, Routing Switching, Firewall, WLC, LAN WAN