Job SummaryWe are looking for a Network Support Engineer responsible for installation, configuration, troubleshooting, maintenance, and support of network infrastructure across customer sites. The role involves working with switches, routers, firewalls, Wi-Fi, structured cabling, fiber optic networks, and related IT infrastructure. Key ResponsibilitiesInstall, configure, and troubleshoot LAN/WAN network infrastructure .

Configure and troubleshoot managed switches, routers, access points, and network devices. Handle VLAN, STP, LACP, DHCP, DNS, IP addressing, and subnetting . Troubleshoot network connectivity, latency, packet loss, and intermittent network issues.

Perform fiber optic and structured cabling testing and troubleshooting. Coordinate with customers and internal teams for site-level network issues. Configure and troubleshoot Wi-Fi networks , including SSID, VLAN mapping, authentication, and coverage-related issues.

Assist in network commissioning, testing, and handover activities. Perform preventive maintenance and health checks of network infrastructure. Monitor network devices and identify potential performance or connectivity issues.

Maintain network documentation, IP address lists, topology diagrams, and configuration records. Conduct site surveys and prepare technical observations and recommendations. Support CCTV, access control, IP PBX, AV,



and other ELV systems where network connectivity is involved.

Coordinate with OEMs/vendors for technical support and RMA-related issues. Prepare service reports, installation reports, and troubleshooting reports. Follow company safety, quality, and customer-site procedures.

Required Technical

SkillsStrong knowledge of TCP/IP, IPv4, subnetting, VLAN, STP/RSTP, DHCP and DNS .

Experience with Cisco / Allied Telesis / Netgear / similar managed switches . Basic knowledge of routing and switching. Knowledge of PoE, SFP/SFP+, fiber optic connectivity, and structured cabling . Knowledge of Wi-Fi technologies and access-point configuration.

Ability to use tools such as ping, tracert/traceroute, ipconfig/ifconfig, nslookup, and network monitoring tools . Basic understanding of firewalls and network security. Ability to read network topology and rack elevation diagrams.

Knowledge of CCTV networking is an added advantage.

Preferred

CertificationsCCNA or equivalent networking certification. Network+ or other relevant networking certification. Soft SkillsGood communication and customer-handling skills. Solid troubleshooting and analytical ability. Ability to work independently at customer sites. Willingness to travel to project locations. Ability to prepare clear technical reports. Good coordination with project, sales, and service teams.

📌 Network (Support) Engineer (Chennai)
🏢 Vansom Technologies
📍 Chennai