Yorick Holkamp
Co-Founder at Mijnbatterij.nl
Rotterdam, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolYorick Holkamp is a software engineer and serial founder with 14 years of experience building scalable, maintainable systems and product-led startups from Rotterdam. He co-founded Onbalansmarkt/Mijnbatterij.nl to bring transparency to the home battery market while simultaneously running Next Pulse, delivering Java/Kotlin cloud-native backends, SRE work, and legacy migrations for medium and large enterprises. Yorick blends hands-on engineering—contributing bug fixes and feature work to the Jooby Java/Kotlin web framework—with product instincts from hardware ventures like Epion, which develops indoor air-quality sensors. His background includes a MSc in Computer Science from TU Delft and a track record of shipping API-first systems and integrations across e‑commerce and POS stacks. Notably, he moves comfortably between low-level build and asset-pipeline fixes and high-level platform strategy, making him equally effective as a developer and a founder.
14 years of coding experience
6 years of employment as a software developer
VWO, Atheneum, Nature & Technology, VWO, Atheneum, Nature & Technology at S.G. HeliniumMaster of Science (MSc), Computer Science, Master of Science (MSc), Computer Science at Delft University of Technology
English, Dutch
Github Skills (8)
kotlin10
micro-framework10
javas10
web-framework10
sass10
java10
dependency-injection9
maven9
Programming languages (9)
Github contributions (5)
jooby-project/jooby
Jan 2018 - May 2019
The modular web framework for Java and Kotlin
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 8 PRs, 7 comments in 1 year 4 months
Contributions summary:Yorick primarily focused on improving the Jooby web framework by addressing bug fixes and implementing new features. They modified the asset processing pipeline, specifically the Sass module, to handle classloader-based imports and resolve file resolution issues. Additionally, the user enhanced the framework's local injection mechanism, providing more informative error messages to improve debugging. Finally, the user contributed to the build process by ensuring that the AssetMojo honored the Maven project's base directory.
micro-frameworkmicroframeworkframeworkmodular-webwebframework
yholkamp/addressbook-sample-mongodb
Apr 2012 - Jul 2012
Contributions:45 commits in 2 months
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