Jaap Van Otterdijk
Senior Product Developer at Tilaa
's-Hertogenbosch, North Brabant, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolJaap Van Otterdijk is a Senior Product Developer with 13 years of experience building infrastructure-focused software and developer tooling, currently contributing to Tilaa's nexaa.io. He blends hands-on backend engineering with strong QA and documentation skills, evidenced by sustained open-source work on phpDocumentor and Zend Framework where he improved type resolution, test coverage, and docblock parsing. A natural mentor and collaborator, Jaap emphasizes learning-first problem solving and builds tools that reduce day-to-day friction for teams. His background ranges from leading development teams to deep technical contributions in virtual filesystem testing and reflection libraries—work that often improves developer experience rather than just shipping features. Based in 's-Hertogenbosch, he also writes and produces documentation tools by night, signaling a persistent focus on clarity and maintainability beyond core product work.
13 years of coding experience
18 years of employment as a software developer
Bachelor, Technical Informatics, Bachelor, Technical Informatics at Avans University of Applied Sciences
English, Dutch
Github Skills (21)
unit-testing10
reflection10
filesystem10
type-check10
testing10
enforcement10
zend-framework10
document-generation10
php10
code-coverage10
reflections10
type-checking10
coding-style10
documents10
documentation10
Programming languages (12)
Github contributions (5)
phpDocumentor/TypeResolver
Apr 2017 - Dec 2022
A PSR-5 based resolver of Class names, Types and Structural Element Names
Role in this project:
Back-end Developer
Back-end DeveloperContributions:24 releases, 22 reviews, 167 commits in 5 years 8 months
Contributions summary:Jaap made several contributions focused on improving the code quality and functionality of the type resolver. Their commits added missing annotations, enhanced code style, and implemented parent type resolving. The user also introduced support for never pseudo-types, expanding the capabilities of the type resolver.
resolvertyperesolverphpstructuralpsr
phpDocumentor/ReflectionCommon
Jun 2015 - Jul 2022
Role in this project:Back-end Developer
Back-end DeveloperContributions:4 releases, 7 reviews, 58 commits in 7 years 3 months
Contributions summary:Jaap primarily focused on developing the `Fqsen` (Fully Qualified Structural Element Name) value object within the `phpDocumentor/reflectioncommon` repository. Their contributions involved initializing the project, adding methods, and refactoring the code to allow numbers and UTF-8 characters in the Fqsen. The user also introduced the `ProjectFactory` interface and associated changes.
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