MPBN SME

About This Opportunity

We are looking for an experienced MPBN SME / IP Transport Engineer with 5+ years of experience in telecom, mobile packet core, IP transport, and MPLS networks.
In this role, you will provide expert-level technical support for Mobile Packet Backbone Networks, mobile backhaul, and end-to-end packet network connectivity. You will be responsible for network operations, fault isolation, performance analysis, configuration support, incident management, and coordination with RAN, Core, Transmission, Operations, and vendor teams.
Your primary objective will be to ensure the availability, stability, and performance of the mobile packet transport network while resolving complex IP/MPLS and mobile connectivity issues.

What You Will Do

• Provide L2/L3 technical support and SME-level troubleshooting for MPBN and IP transport networks.
  • Troubleshoot end-to-end connectivity issues across RAN, MPBN, EPC/5GC, and external networks.
  • Analyze and resolve issues related to IP routing, MPLS, VLAN, VRF, QoS, VPN, and mobile backhaul connectivity.
  • Troubleshoot connectivity between eNodeB/gNodeB and EPC/5GC network elements.
  • Work with routing protocols, including BGP, MP-BGP, OSPF, and IS-IS.
  • Troubleshoot MPLS L2VPN/L3VPN, label-switching, and packet transport issues.
  • Investigate packet loss, latency, jitter, link flaps, routing instability, and network congestion.
  • Perform fault isolation using alarms, logs, counters, packet captures, and CLI outputs.
  • Support the investigation of S1, S5/S8, SGi, N2, N3, and other mobile-network connectivity issues, where applicable.
  • Coordinate with RAN, EPC/5GC, IP Transport, Transmission, Operations, and vendor teams for end-to-end issue resolution.
  • Analyze network performance and identify recurring faults, capacity concerns, and improvement opportunities.
  • Support network changes, migrations, expansions, integrations, and post-change validation.
  • Participate in major incident and problem management activities.
  • Prepare root-cause analysis reports, technical documentation, troubleshooting procedures, and operational reports.
  • Work with OEM and vendor support teams to resolve complex network issues.
  • Maintain network documentation, topology diagrams, configuration standards, and operational procedures.