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Champion

Willem Jan Glerum

Lunatech

Willem Jan is a Principal Software Engineer at Lunatech who loves building cloud software and contributing to open source. He's all about writing quality code and finding ways to automate anything. Willem Jan has been working with Quarkus since the beginning and enjoys making sure his applications are both simple and secure. On weekends, you won't find him behind a keyboard - he's either out enjoying nature or volunteering with his local scout group.

Badges 11

Talks 7

  1. Devoxx Poland 2026

    Building secure AI agents with Quarkus LangChain4j

    June 2026Security

  2. Devoxx France 2026

    Concurrency Crossroads: Choosing between Reactive Programming & Virtual Threads

    April 2026Java & Languages

  3. Devoxx Morocco 2025

    Concurrency Crossroads: Choosing between Reactive Programming and Virtual Threads in Quarkus

    November 2025Programming languages

  4. Devoxx Morocco 2025

    SSO made easy with Quarkus OIDC

    November 2025Security

  5. Devoxx Belgium 2025

    Building secure AI agents with Quarkus LangChain4j

    October 2025Security

  6. Devoxx Poland 2022

    Reactive Quarkus: Building reactive applications with Java

    June 2022java

  7. Devoxx Ukraine 2021

    Reactive Quarkus

    November 2021Java & JVM