On Programming, Software Architecture, and Sociotechnical Systems

My name is Lutz Hühnken. I work as a Head of Engineering for Investment Applications at Upvest.

Previously, taking on the roles of architect or head of engineering, I lead the development of software for container shipping, online retailers, financial institutions, cruise ships, and others. My current focus is on the evolution of large systems, domain-driven design, events-first microservices, and reactive systems.

Curriculum Vitae

Talks and Presentations

2022

Microservices Meetup Hamburg, 2022-03-02: Events, Events, überall Events! [Slides]

2021

w-jax, München, 2021-11-09: Events, Events, überall Events! [Slides]

2019

TechCamp, Hamburg, 2019-04-16: Events First: Resiliente und skalierbare Microservices

2018

w-jax, München, 2018-11-07: Events-First Microservices [Slides]
code.talks, Hamburg, 2018-10-18: Events-First Microservices [Video]
ScalaDays Berlin, 2018-05-14/15: Workshop: Domain-Driven Design, Event Storming, Microservices & Reactive Systems
SEACON 2018, Hamburg, 2018-05-04: Events-First Microservices: Mit Domain-Driven Design Reaktive Systeme modellieren
JAX, Mainz, 2018-04-25: Alles fließt (Reactive Streams)
JAX, Mainz, 2018-04-23: Workshop: Domain-Driven Design, Event Storming, Microservices & Reactive Systems
Java User Group Hamburg, 2018-04-12: Alles fließt (Reactive Streams)
microXchg, 2018-03-23: Designing Reactive Systems With Event Storming [Slides] [Video]

2017

w-jax, München, 2017-11-09: Neues aus der Scala-Welt
w-jax, München, 2017-11-08: Microservices weiter gedacht [Video]
scala.io, Lyon, 2017-11-03: Lagom Microservices Workshop
KanDDDinsky, Berlin, 2017-10-21: Workshop: Let's Build a CQRS Application!
ScalaDays Copenhagen, 2017-06-02: Introduction to Event Sourcing and CQRS in Scala [Video]
Scala User Group Hamburg, 2017-05-17: Introduction to Event Sourcing and CQRS in Scala
SEACON 2017, Hamburg, 2017-05-11: Pecha Kucha: Reactive Systems
Gesellschaft für Informatik, Regionalgruppe Dortmund, 2017-02-06: Microservice-Architektur am Beispiel des Lagom-Frameworks

2016

Java Forum Nord, Hannover, 2016-10-20: Lagom - Microservices weiter gedacht
code.talks, Hamburg, 2016-09-29: Scala - durch Java 8 überflüssig geworden?
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* (*But Were Afraid to Ask) [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 2016, Brühl, 2016-03-08: Neue Concurrency-Modelle auf der JVM – über Fibres, Channels, Verticles und Actors [Slides]
budapest.scala, 2016-03-02: All About Pattern Matching
Scala Hamburg, 2016-02-15: All About Pattern Matching

2015

Java User Group Hessen, Kassel, 2015-12-03: Von "Enterprise" zu "Reactive"
London Scala User Group / Skills Matter, London, 2015-11-17: Building Applications with the Typesafe Reactive Platform [Slides]
devoxx Antwerpen, 2015-11-12: New Concurrency Models on the JVM: Fibres, Verticles, Channels and Actors [Slides] [Video]
w-jax, München, 2015-11-03: Neue Concurrency-Modelle auf der JVM – über Fibres, Channels, Verticles und Actors [Slides]
Jazoon, Zürich, 2015-10-23: Scala in Practice [Slides]
code.talks 2015, Hamburg, 2015-09-30: Neue Concurrency-Modelle auf der JVM – über Fibres, Channels, Verticles und Actors [Slides]
Brabant.scala, Eindhoven, 2015-09-08: Reactive Streams [Slides] (I reused the Tel Aviv slides)
Underscore Meetup, Tel Aviv, 2015-07-02: Reactive Streams [Slides]
ScalaDays 2015, 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 2015, Mainz, 2015-04-22: Von "Enterprise" zu "Reactive" [Slides]
Functional and Reactive Programmers Group, Kaiserslautern, 2015-03-31: Be Reactive! [Slides]

2014

London Scala User Group / Skills Matter, London, 2014-11-25: Reactive Streams & Akka: A great new way to handle streaming data (with Markus Jura) [Slides]
devoxx Antwerpen, 2014-11-10: Reactive Streams: Introduction to Reactive Streams (Hands-on lab introducing Akka Streams, with Will Sargent).
code.talks 2014, 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, London, 2014-06-04: One more reason to learn Scala: Scala.js [Video]
Scala Hamburg Meetup, Hamburg, 2014-03-26: Slick 2.0 - Data Persistence in Scala

Webinars

2015-09-04 Reactive Architectures Using Microservices

Articles

2020-04-17 Heise: Scala From Scratch: Exploration.
2020-03-01 jaxenter.de: Project Loom.
Also in Java Magazin 04.2020.
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. The framework for Microservices and Domain-Driven Design.
2016-10-06 jaxenter.de: Einführung in Lagom: Das Framework für Microservices und Domain Driven Design.
Also in Java Magazin 2.2017.
2015-07-10 jaxenter.de: Von „Enterprise“ zu „Reactive“. Wie sich reaktiv im Code widerspiegelt.
Also in Java Magazin 10.2015.

Interviews

2017-11-08 jaxenter.de: Neues aus der Scala-Welt (German)
2016-11-11 jaxenter.de: Interview on Lagom (German)
Video Interview on JAX 2015: “Reactive Development”: Potenziale, Chancen, Risiken

Other