Ronald De Haan
Scala Developer at Wehkamp
Zwolle, Overijssel, Netherlands
Summary
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Rockstar🎓
Top SchoolRonald De Haan is a pragmatic Scala developer with 11 years of hands-on experience building data-intensive systems, from low-level C projects to large-scale Spark pipelines and Akka-based services. At Wehkamp he drives search relevance and personalization while enabling data science through robust data pipelines on Databricks and AWS. Comfortable jumping into the deep end, he combines systems-level discipline from embedded and C work with production-grade distributed engineering in Scala. A self-styled "Blackbelt Data Grappler," he has a track record across defense, telecom, and e‑commerce domains that highlights both rigorous engineering and curiosity for new challenges. Based in Zwolle, he pairs a Bachelor in Technical Information Science with a practical, end-to-end mindset for turning complex data problems into reliable production features.
11 years of coding experience
7 years of employment as a software developer
Bachelor, Technical Information Science, Bachelor, Technical Information Science at Windesheim
Stackoverflow
23reputation
308reached
1answer
2questions
Github Skills (18)
circe10
integrate10
non-blocking10
reactive10
relevance10
http10
blocking10
scala10
elasticsearch-plugin10
http-client10
reactive-streams10
elasticsearch10
rest-api10
machine-learning9
spark-structured-streaming6
Programming languages (2)
Github contributions (5)
TactiC/fiddling-with-scala
Jan 2018 - May 2023
Contributions:1 PR, 3 pushes, 2 branches in 5 years 5 months
TactiC/ronalddehaan.nl
May 2015 - May 2022
Contributions:21 pushes, 1 branch in 7 years
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