In this talk we’ll have a look at Akka Streams and its relation to Reactive Streams, a standard for asynchronous stream processing with non-blocking back pressure. We’ll see how Reactive Streams principles enable the building of highly responsive applications that adapt to load changes and that are resilient to failure. Real-life scenarios will be shown where applying so-called back-pressure keeps systems fast and healthy at the same time. Eric Loots is a Scala & Akka champion, teaching courses on these topics across the world for Lightbend, his employer. Having started programming in various machine languages some odd 35 years ago, subsequently passing via C and Java to Scala and Akka, Eric’s glad with the coming of age of Reactive programming. [XFU-9980]