Network Engineer L2 – ISP Operations (ILL, Broadband, IPTV)

Job Summary

Key Responsibilities

• Provide L2 support for ISP backbone and access networks, including MPLS, BGP, OSPF, and switching.
• Monitor network health using tools like Zabbix and Ticketing tool High8
• Troubleshoot escalated issues from L1 NOC, including:
• Link Down
• Link flaps
• BGP/OSPF session drops
• Latency, Jitter, Throughput or packet loss
• Customer bandwidth issues
• Coordinate with upstream providers, vendors, and internal teams for fault resolution.
• Perform basic configurations on routers/switches/firewalls (Nokia, Juniper, Huawei, etc.).
• Work on provisioning tasks like VLAN tagging, sub-interface creation, and IP allocation.
• Handle planned maintenance, firmware upgrades, and change requests under supervision.
• Document incidents, RCA reports, and knowledge base articles.
• Ensure SLA adherence and escalate chronic issues to L3/engineering.
  

Must-Have

• 4+ years of hands-on experience in ISP/NOC operations (Troubleshooting on ISP Network)
• Strong knowledge of TCP/IP, BGP, OSPF, MPLS, VLANs, L2/L3 switching.
• Familiarity with ILL, Broadband Connectivities, Fiber, Ethernet, cable TV technologies.
• Proven experience on Multicast, STB, CDN, EPG, OTT integration
• Hands-on Experience on GPON, FTTH, DSL, BNG, ONT/OLT configuration
• Excellent understanding on L2 & L3 connectivities.
• Experience with basic Linux commands and scripting (bash/python) is a plus.
• CCNA or equivalent certification required; CCNP preferred.
  

• End-to-end fault isolation (customer premise → access → core → CDN)
• Analysing latency, jitter, packet loss, throughput
• Quick correlation of alarms and user complaints
• RCA (Root Cause Analysis) documentation
  

• Routers/Switches: Nokia, Juniper, Huawei, MikroTik, D-link
• OLT/ONT vendors: ZTE, Huawei, Nokia, FiberHome
• STB Vendors: Technicolor, ARRIS, Infomir, or custom Android-based boxes
• CDN tools: Akamai, EdgeCast, or in-house cache solutions
  

Good To Have

• Experience with SD-WAN, NetFlow, SNMP monitoring, or automation tools.
• Hands-on with tools like Wireshark, traceroute, MTR for packet-level diagnostics.
• Understanding of peering/transit concepts and RIPE/APNIC management.
  

Soft Skills

• Strong communication and documentation skills.
• Ability to handle pressure and multitask in a 24x7 environment.
• Proactive, analytical, and customer-focused mindset.