Streaming to Scale: Building Real-Time Asset APIs for Modern Brokerages

This article presents a battle-tested approach to real-time financial data handling in microservices architecture. By integrating Kafka for stream consumption, Redis for sub-millisecond caching, and Flyway for schema versioning, the Broker Asset API achieves the performance and reliability standards that modern brokerages demand. For engineers building fintech infrastructure, this practical MVP-first methodology shows how to establish a scalable foundation without over-engineering from day one.