When to CQRS before it is too late

Case study on how Revolut stores and processes users financial transactions. Alexander will discuss the original "simple" services and DB architecture and how far the team was able to get with it, then analyze what problems we encountered when it was too late for this architecture and the CQRS that was built to solve these problems. The speaker will focus on the pros and cons of each architecture and some of the mistakes made along the way.