I am an independent freelance software architect (iSAQB certified), developer and trainer with main focus on Java-/Scala-/Kotlin-based enterprise solutions, systems integrations and modern architectural styles. For the past years, I have been working with clients from a variety of industries: telecommunications, logistics, public sector, media, automotive and finance.

• 🔭 I’m currently working on workshops for Apache Kafka and its ecosystem and AI-enabled Enterprise Search
• 🌱 I’m currently reading
  • Domain-Driven Transformation by Carola Lilienthal and Henning Schwentner
  • Hacker's Delight by Henry S. Warren Jr.
• 👯 I’m always looking for discussions on the topics I'm interested in: Distributed Systems, Messaging Solutions, Systems Integration, Software Architecture, Enterprise Search
• 😄 Pronouns: he/him

• Haystack EU 2024
• Property-based testing with ScalaCheck
• Performance classification based on service times
• Workshop: Apache Kafka for Java Developers
• Version 3.6.0 of Kafka for JUnit released

➡️more blog posts...

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1. kafka-junitkafka-junitPublic

   Enables you to start and stop a fully-fledged embedded Kafka cluster from within JUnit and provides a rich set of convenient accessors and fault injectors through a lean API. Supports working again…

   Java 54 21

2. spring-kafka-event-sourcing-samplerspring-kafka-event-sourcing-samplerPublic

   Showcases how to build a small Event-sourced application using Spring Boot, Spring Kafka, Apache Avro and Apache Kafka

   Java 41 34

3. idemidemPublic

   Idem provides decentralized k-ordered ID generation.

   Java 14 2

4. linguslingusPublic

   Lingus is a toolset for testing out AI-enabled NLP concepts.

   Java 2 1

5. csp-solver-scalacsp-solver-scalaPublic

   Tiny framework for solving constraint satisfaction problems (CSP) with discrete and finite domains. This is a Scala-based port of the original Java version. Features Sudoku as an example application.

   Scala 10 2

6. gengenPublic

   Gen monad for Java8+

   Java 2