Hugh McKee is a developer advocate at Lightbend. He has had a long career building applications that evolved slowly, inefficiently utilized their infrastructure, and were brittle and prone to failure. Hugh has learned from his past mistakes, battle scars, and a few wins. And the learning never stops. Now his focus is on helping other developers and architects build resilient, scalable, leading-edge systems. Hugh frequently speaks at conferences around the world. He is the author of Designing Reactive Systems: The Role Of Actors In Distributed Architecture.