Event-Driven Architecture for Financial Systems

This technical report discusses the implementation of an event-driven architecture in financial systems, focusing on the Digital Twin solution developed by Matera. Digital Twin serves as a real-time transaction ledger designed to enhance performance and resilience in banking operations. The report outlines the key features of Digital Twin, including its ability to authorize transactions 24/7, operate as a shadow ledger, and handle high transaction volumes with minimal latency. It explains how Digital Twin integrates with existing core banking systems, allowing for real-time processing while maintaining data integrity. The architecture is optimized for AWS, utilizing services like Aurora and Kafka to ensure scalability and efficiency. The report also details the migration process of Cielo, a major Brazilian payment processor, to Digital Twin, highlighting the phased approach taken to minimize disruption. Overall, the document emphasizes the importance of specialized architecture in modern financial systems to meet customer expectations for instant transactions.