Société Générale CIB

Real-Time Data Aggregation Layer

Major contributions to the development of a real-time data aggregation layer powering a front-office trading dashboard at Société Générale CIB. The API collected data from multiple upstream sources and routed it through a gRPC/Redis backbone acting as both memory cache and message broker. Downstream, a set of distributed pods consumed the stream and maintained their own in-memory representations, adding another caching tier to cut latency further. The exchange format was built around differential updates, keeping payloads minimal. Every stage of the pipeline was profiled and tuned.