Speaking

Software Architecture Summit Munich, March 2026 — Event-Driven Architecture in Java (half-day workshop, German)
BOBKonf Berlin, March 2026 — Four Fascinating Programming Languages You've Probably Never Heard Of
JAX Mainz, May 2026 — Microservices Need Microworkflows
DDD Europe Antwerp, June 2026 — Patterns and Antipatterns for Event-Driven Architecture
We Are Developers World Congress Berlin, July 2026 — Event-Driven Microservices in Production (full day workshop)

Java Forum Nord Hannover, 2016-10-20 — Lagom - Microservices weiter gedacht
code.talks Hamburg, 2016-09-29 — Scala - durch Java 8 überflüssig geworden? [Slides]
Java User Group Dortmund, 2016-09-20 — Lagom – Reactive Microservices mit Java 8
Scala Lyon User Group, 2016-09-15 — 26eme SLUG - Lagom
Paris Scala User Group (PSUG), 2016-09-14 — Lagom in Paris
Czech Scala Enthusiasts Prague, 2016-06-28 — Implementing Microservices with Lagom [Video]
Scala Days New York, 2016-05-10 — Everything You Always Wanted to Know About Pattern Matching [Video]
Java User Group Bremen, 2016-05-03 — Microservices mit Lagom
hybris Reactive Software Munich Meetup, 2016-04-13 — Building Microservices with Lagom
Scala User Group Köln Bonn, 2016-03-23 — All About Pattern Matching
JavaLand Brühl, 2016-03-08 — Neue Concurrency-Modelle auf der JVM [Slides]
budapest.scala, 2016-03-02 — All About Pattern Matching
Scala Hamburg, 2016-02-15 — All About Pattern Matching

Java User Group Hessen Kassel, 2015-12-03 — Von "Enterprise" zu "Reactive" [Video]
London Scala User Group / Skills Matter, 2015-11-17 — Building Applications with the Typesafe Reactive Platform [Slides]
Devoxx Antwerpen, 2015-11-12 — New Concurrency Models on the JVM [Slides][Video]
w-jax Munich, 2015-11-03 — Neue Concurrency-Modelle auf der JVM [Slides]
Jazoon Zürich, 2015-10-23 — Scala in Practice [Slides]
code.talks Hamburg, 2015-09-30 — Neue Concurrency-Modelle auf der JVM [Slides]
Brabant.scala Eindhoven, 2015-09-08 — Reactive Streams [Slides]
Underscore Meetup Tel Aviv, 2015-07-02 — Reactive Streams [Slides]
ScalaDays Amsterdam, 2015-06-10 — A Pragmatic View of Reactive [Slides][Video]
Scala User Group Vienna, 2015-05-20 — Reactive Slick - The Principles Behind Slick 3 [Slides]
Slovak Scala Users Group Bratislava, 2015-05-19 — One more reason to learn Scala: Scala.js [Slides]
JAX Mainz, 2015-04-22 — Von "Enterprise" zu "Reactive" [Slides]
Functional and Reactive Programmers Group Kaiserslautern, 2015-03-31 — Be Reactive!

London Scala User Group / Skills Matter, 2014-11-25 — Reactive Streams & Akka [Slides]
Devoxx Antwerpen, 2014-11-10 — Reactive Streams: Introduction to Reactive Streams (Hands-on lab with Will Sargent)
code.talks Hamburg, 2014-10-09 — Scala.js: Scala für den Browser [Slides]
BeScala Belgian Scala User Group Antwerpen, 2014-07-07 — Scala.js [Slides]
London Scala User Group / Skills Matter, 2014-06-04 — One more reason to learn Scala: Scala.js [Video]
Scala Hamburg Meetup, 2014-03-26 — Slick 2.0 - Data Persistence in Scala

2020-04-17 Heise — Scala From Scratch: Exploration
2020-03-01 jaxenter.de / Java Magazin 04.2020 — Project Loom
2018-06-12 Heise — Scala Days Europe 2018: Blick nach vorn
2018-03-27 InfoQ — Designing Reactive Systems Using DDD, Event Storming and Actors
2017-04-07 Java aktuell — Lagom - Einmal Microservices mit Allem, bitte
2016-11-21 jaxenter.com — The Lagom Framework Tutorial
2016-10-06 jaxenter.de / Java Magazin 2.2017 — Einführung in Lagom
2015-07-10 jaxenter.de / Java Magazin 10.2015 — Von „Enterprise" zu „Reactive"

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