We are seeking an experienced L2 Network and Security professional who can manage, monitor, troubleshoot, and maintain enterprise network (Wired & wireless) and security infrastructure. The candidate will be responsible for handling technical incidents, implementing configuration changes, performing preventive maintenance, and ensuring the availability, performance, and security of network services

.

Key Responsibilities:

- Independently monitor, manage, and troubleshoot network and security devices.
- Configure and support routers, switches, wireless access points, firewalls, VPNs, and related infrastructure.
- Diagnose and resolve L2-level incidents involving network connectivity, performance, routing, switching, wireless, and security.
- Manage firewall policies, access-control lists, NAT rules, site-to-site VPNs, and remote-access VPNs.
- Perform configuration changes, firmware upgrades, patching, backups, and restoration of network and security devices.
- Monitor network availability, bandwidth utilization, device health, security alerts, and system logs.
- Troubleshoot LAN, WAN, VLAN, STP, routing, DNS, DHCP, VPN, and Wi-Fi-related issues.
- Perform root-cause analysis for recurring incidents and recommend corrective and preventive actions.
- Coordinate with service providers, OEM support teams, and other internal teams for issue resolution.
- Handle service requests, incidents, problems, and changes in accordance with established IT service-management processes.
- Maintain accurate network diagrams, configuration records,



inventory details, standard operating procedures, and troubleshooting documents.
- Ensure compliance with organizational security policies, standards, and change-management procedures.
- Provide technical guidance to L1 engineers and escalate complex issues to L3 or vendor support when required.
- Participate in network and security audits, vulnerability remediation, capacity planning, and infrastructure-improvement activities.
- Provide support during maintenance windows and participate in rotational on-call or shift duties, as required.

Technical Skills
- Strong knowledge of TCP/IP, subnetting, VLANs, trunking, STP, EtherChannel, routing, and switching.
- Working knowledge of routing protocols such as OSPF, BGP, and static routing.
- Hands-on experience with enterprise routers, switches, wireless controllers, and access points.
- Experience managing next-generation firewalls and security appliances.
- Positive understanding of firewall policies, NAT, ACLs, IPsec VPNs, SSL VPNs, and network segmentation.
- Familiarity with network-monitoring and log-analysis tools.
- Knowledge of high-availability, redundancy, failover, and disaster-recovery concepts.
- Basic understanding of network-security threats, vulnerability management, and incident-response procedures.
- Ability to analyse packet captures and system logs using relevant troubleshooting tools.
- Willingness to work in shifts, during planned maintenance windows, and provide on-call support when required.

📌 Network & Security Professional (Tiruchirappalli)
🏢 UPDATER SERVICES- UDS
📍 Tiruchirappalli