L2 Network Engineer
innopay
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Benefits offered by this job
Job summary
Innolens Media and Broadcasting Limited in Coimbatore is seeking an L2 Network Engineer to support ISP, FTTH/GPON, IPTV, and broadband services. You will resolve incidents escalated by L1/NOC, configure devices, and maintain SLA-driven availability.
The role requires hands-on network operations experience and strong troubleshooting, documentation, and coordination with cross-functional teams. Willingness to rotate shifts and participate in on-call support is required.
Qualifications
- Hands-on experience in ISP, FTTH, broadband, data center or network operations.
- Familiar with monitoring platforms like Zabbix/PRTG/LibreNMS and packet analysis tools.
- Certifications (CCNA/CCNP/MikroTik) are a plus but not mandatory with strong practice.
Responsibilities
- Monitor network infrastructure, services, and performance; run health checks.
- Resolve L2 incidents escalated by L1/NOC teams within SLAs; coordinate with teams.
- Configure and maintain routers, switches, OLTs/ONTs, and related equipment.
- Troubleshoot ISP/broadband/FTTH/GPON issues including IPTV and multicast.
- Document changes, maintain diagrams, and support on-call rotations.
Skills
Education
Tools
Job description
About Company: Innolens Media and Broadcasting Limited is committed to shaping the future of connectivity and entertainment through innovative digital solutions. We specialize in delivering high-quality services that seamlessly support entertainment, remote work, and everyday connectivity needs.
Our solutions are designed to provide reliable, high-speed connections, ensuring uninterrupted access to digital content and efficient remote working experiences. Whether you are seeking premium entertainment services or dependable connectivity for personal and professional use, we deliver smooth performance, exceptional reliability, and a superior user experience.
Company Website: Innolens Media & Broadcasting Limited - Future of Digital Connectivity
Work Location: Coimbatore
Experience: 2-5 years of experience in Network Engineering, NOC or ISP Operations.
We are looking for a technically skilled L2 Network Engineer to support network operations across ISP, broadband, FTTH/GPON, and IPTV services. The role involves resolving incidents escalated by L1/NOC teams, configuring and maintaining network equipment, coordinating service restoration, and ensuring network availability and reliability within defined service-level agreements (SLAs).
1. Strong hands-on experience in ISP, FTTH, broadband, data center, or network operations environments.
2. Experience with network monitoring and troubleshooting platforms is preferred. Knowledge of Zabbix, PRTG, LibreNMS, Grafana, Wireshark, syslog platforms, and SNMP-based monitoring is an advantage.
3. CCNA, CCNP, MikroTik MTCNA/MTCRE, or vendor-specific networking certifications are an advantage; certifications are not mandatory for candidates with strong practical networking experience.
1. Networking fundamentals: TCP/IP, OSI and TCP/IP models, IPv4 addressing and subnetting, basic IPv6, TCP/UDP, ARP, ICMP, DNS, and DHCP.
2. Switching: VLANs, 802.1Q, access/trunk ports, STP/RSTP/MSTP, LACP/port channels, MAC tables, broadcast domains, and loop prevention.
3. Routing: static/default routing, OSPF, BGP fundamentals, route selection, routing tables, administrative distance, and basic route filtering.
4. ISP technologies: PPPoE, RADIUS, NAT/CGNAT, VLAN-based subscriber management, FTTH/GPON, OLT/ONT, and basic multicast/IPTV networking.
5. Strong analytical, troubleshooting, communication, coordination, and documentation skills, with close attention to detail.
6. Ability to remain calm under pressure during outages and independently handle L2 incidents.
1. Monitor network infrastructure, links, devices, and services; perform proactive health checks and identify potential network problems.
2. Track bandwidth utilization, interface errors, CPU and memory utilization, and link status; troubleshoot outages, latency, packet loss, and connectivity issues.
3. Handle incidents escalated by L1/NOC teams, track them through closure within defined SLAs, and coordinate with relevant teams during major outages.
1. Configure, troubleshoot, and maintain Layer 2 and Layer 3 devices, including VLANs, trunk and access ports, STP/RSTP/MSTP, LACP/port channels, and inter-VLAN routing.
2. Support static routing, OSPF, and BGP; troubleshoot asymmetric routing, routing loops, and incorrect route advertisements.
3. Analyze routing tables, ARP and MAC address tables, and interface statistics; implement configuration changes in accordance with approved procedures.
1. Troubleshoot subscriber connectivity involving DHCP, PPPoE, RADIUS, DNS, NAT/CGNAT, VLAN-based subscriber networks, IP addressing, and subnetting.
2. Diagnose last-mile and aggregation connectivity issues using an understanding of ISP architecture and traffic flow.
3. Coordinate with upstream providers and transit/peering partners to resolve connectivity issues.
1. Troubleshoot ONT/ONU connectivity and authentication issues, including offline devices, loss of signal (LOS), optical power, VLAN/service configuration, and DHCP/PPPoE connectivity.
2. Work with OLT, ONT, splitter, PON, and aggregation network architecture; coordinate with field teams to resolve physical-layer faults.
1. Troubleshoot IPTV and streaming interruptions caused by connectivity, multicast, VLAN, or routing issues, using knowledge of IGMP, IGMP snooping, multicast VLANs, and PIM basics.
2. Coordinate with content, server, and application teams when issues extend beyond the network.
1. Use ping, traceroute/tracert, MTR, ARP, DNS utilities, TCP/IP analysis, packet capture/Wireshark, interface and routing diagnostics, MAC table analysis, VLAN verification, and route/path analysis.
2. Isolate faults across physical connectivity, switching, routing, IP addressing, DNS/DHCP, authentication, upstream connectivity, servers/applications, and customer premises equipment.
1. Configure routers, switches, OLTs, and other network equipment; take and verify configuration backups.
2. Perform firmware/software upgrades, approved changes, planned maintenance, and network migrations with minimal service disruption.
1. Independently manage L2 incidents within defined SLAs, analyze faults before escalation to L3/vendor teams, and provide detailed technical information.
2. Participate in major incident troubleshooting, document incidents and resolutions, perform root-cause analysis, and recommend corrective actions for recurring issues.
3. Coordinate effectively with L1, L3, field, vendor, and management teams.
1. Maintain network diagrams, IP address allocations, VLAN details, device inventories, circuit/link information, and configuration records.
2. Keep incident reports, troubleshooting procedures, change records, and network standard operating procedures (SOPs) accurate and up to date.
- Bachelor’s degree or diploma in Computer Science, Information Technology, Electronics, Telecommunications, Networking, or a related field. Equivalent practical networking experience may also be considered.
Willingness to work in rotational shifts and provide on-call support when required.
- Opportunity to work on innovative projects with a talented and passionate team.
- Professional growth and development opportunities.
Note: We prefer candidates who can join immediately and are located in Coimbatore.
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