5G Core Network Transformation for a Tier 1 European Operator
A major European mobile operator needed to migrate from a legacy 4G EPC to a cloud-native 5G Standalone core while maintaining uninterrupted service for 40M+ subscribers. The program had stalled due to vendor misalignment and unclear technical ownership.
FishmanTech embedded a senior technical lead to establish clear architecture governance, resolve vendor interface disputes, and rebuild the program delivery framework. We defined the target 5GC architecture, led the technical workstreams, and created the migration sequencing plan.
Program re-baselined and back on track within 90 days. 5GC pilot launched on schedule across three cities. Vendor alignment achieved across four equipment suppliers.