Reinier Zwitserloot
Co-Founder, Lead Developer at Zorg op Orde
Delft, South Holland, Netherlands
Summary
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RockstarReinier Zwitserloot is a seasoned software leader and co-founder with 17 years of experience driving backend engineering and product development from Delft. As Co-Founder and Lead Developer at both Zorg op Orde and Project Lombok, he blends entrepreneurial vision with deep Java expertise, notably contributing core enhancements and bug fixes to the widely used Lombok library around annotations, record handling, and modern Java type-use features. He excels at evolving developer-facing tooling and code generation, translating language intricacies into pragmatic, maintainable solutions. Colleagues rely on him to bridge long-term architectural thinking with hands-on implementation of tricky type-resolution and annotation behaviors. His profile reflects a rare combination of startup execution and influential open-source stewardship that improves developer ergonomics across the Java ecosystem.
17 years of coding experience
English, Dutch
Stackoverflow
386reputation
8kreached
3answers
0questions
code-generation
top-5%
Github Skills (12)
compiler10
javas10
code-generation10
internals10
java10
annotations10
annotation-processing10
maven8
boilerplate6
lombok6
api6
networking6
Programming languages (5)
Github contributions (5)
projectlombok/lombok
Dec 2009 - Jan 2023
Very spicy additions to the Java programming language.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 3 reviews, 1536 commits in 13 years 3 months
Contributions summary:Reinier was primarily involved in modifying and extending the Lombok library, focusing on core features. Their work centered on enhancing existing annotations like `@Builder`, `@With`, `@EqualsAndHashCode`, and `@FieldNameConstants`, and adding new features to support newer Java versions and features, particularly related to type use annotations and the integration with existing tools. They also addressed bugs related to type resolution and the handling of code generation related to record structures.
java-programming
projectlombok/lombok.patcher
Apr 2010 - Jan 2023
A framework for easily patching JVM programs. Part of Project Lombok.
Contributions:75 commits, 5 PRs, 35 pushes in 12 years 11 months
jvmlombok
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