Explore key insights from Wix's transition to an event-driven architecture for 2000 microservices in this 54-minute conference talk from GeeCON 2023. Gain valuable knowledge on managing massive-scale event-driven traffic, processing over 70 billion Kafka business events daily. Learn about crucial aspects of maintaining a performant, resilient, and maintainable production environment, including the importance of atomic operations for databases and events, strategies for avoiding data consistency issues caused by out-of-order and duplicate processing, and the implementation of essential debugging and quick-fix tools. Discover practical lessons and best practices derived from real-world experiences in handling large-scale event-driven microservices architecture.