Event Sourcing

Event Sourcing

In this episode, David interviews Frank, a staff engineer at Personio, a big HR company based out of Germany. Frank has been in the industry for close to 15 years and has worked with various programming languages such as PHP, TypeScript, Kotlin, Java, Go, and Rust.

Frank's interest in event-driven architecture started when he worked on a project for Schiphol airport. The website needed to ingest flight information as close to real-time as possible, and the only real way to do that for the scale they were at was through an event-based integration. Frank believes that event-driven architecture is the only way to do things for some projects.


  • (00:00) - Introductions
  • (01:45) - The Knowledge of Others
  • (06:35) - A Need for Event-Driven Architectures
  • (10:45) - When to Event Source
  • (19:15) - What is Event Sourcing
  • (24:50) - What is CQRS
  • (27:40) - Crossover of Microservices and Event-Driven
  • (36:45) - Challenges of Event Sourcing
  • (41:40) - Exciting Futures


- Frank's Twitter - https://twitter.com/frankdejonge
- EventSauce - https://eventsauce.io/
- The Knowledge of Others - https://www.youtube.com/watch?v=RdFGGdL5kH8

Episode Video

Creators and Guests

David Flanagan
David Flanagan
I teach people advanced Kubernetes & Cloud Native patterns and practices. I am the founder of the Rawkode Academy and KubeHuddle, and I co-organise Kubernetes London.
Frank de Jonge
Frank de Jonge
Hi 👋 - I share opinions about software design and architecture. I built #flysystem and @eventsaucephp. I invented typos in  tweats. #fuckcancer