Network & Security Professional

Updater Services (UDS); Tiruchirappalli; On-site; INR 650,000 - 1,150,000; Full time

Job summary

Updater Services (UDS) in India seeks an experienced L2 Network and Security professional to manage, monitor, troubleshoot, and maintain enterprise network and security infrastructure.

You will handle incidents, perform configuration changes, and ensure availability, performance, and security of network services. Responsibilities include configuring routers, switches, wireless controllers, firewalls, VPNs, NATs, ACLs, and routine maintenance.

Qualifications

• Experience with TCP/IP, subnetting, VLANs, trunking, STP, EtherChannel, routing, and switching.
• Hands-on experience with enterprise routers, switches, wireless controllers, and access points.
• Experience managing next-generation firewalls and security appliances.
• Knowledge of NAT, ACLs, IPsec VPNs, SSL VPNs, and network segmentation.
• Familiarity with network-monitoring and log-analysis tools.
• Understanding of high-availability, redundancy, failover, and disaster-recovery concepts.
• Ability to analyse packet captures and system logs for troubleshooting.
• Willingness to work in shifts and provide on-call support when required.

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 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 per IT service-management processes.
• Maintain accurate network diagrams, configuration records, inventory details, SOPs, and troubleshooting documents.
• Ensure compliance with organizational security policies, standards, and change-management procedures.
• Provide 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.

Skills

TCP/IP

Subnetting

VLANs

Trunking

STP

EtherChannel

Routing

Switching

OSPF

BGP

Static routing

Routers

Switches

Wireless controllers

Access points

Firewalls

NAT

ACLs

IPsec VPN

SSL VPN

Monitoring tools

HA concepts

Tools

Routers

Switches

Wireless controllers

Access points

Firewalls

Job description

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 elevate 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.
• Good 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.