JavaOne 2026 Session

Summary

Caixa Econômica Federal (CAIXA) is not just a bank; it is the financial backbone of Brazil, serving over 150 million citizens. Operating at a staggering volume of 8 billion transactions per month, CAIXA faces engineering challenges that demand extreme resilience and massive concurrency.

This session reveals how CAIXA leverages a robust architecture to sustain this hyperscale operation. Attendees will explore the bank's journey from monolithic systems to a modern ecosystem where Java microservices (Spring Boot and Quarkus) orchestrate complex interactions between digital channels and core ledgers. We will discuss the strategic partnership with Oracle, utilizing Exadata Cloud@Customer to ensure the high-performance data persistence required by the instant payment system, which alone processes over 40 million daily operations.

Learn the architectural patterns used to handle traffic spikes during national social benefit payouts. We will dissect how the synergy between Java's agility and Oracle's robust infrastructure empowers CAIXA to bridge the gap between legacy reliability and cloud-native innovation.