Stefan Nieuwenhuis
Lead Data Engineer
Randstad, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolStefan Nieuwenhuis is a Lead Data Engineer with a decade of experience building production-grade ML systems, recommender engines, and scalable data pipelines that serve millions and handle terabytes on GCP. He combines hands-on expertise in Spark, Kafka, SQL, and Kubernetes with a strong frontend background—having contributed UX improvements to Automattic’s high-profile wp-calypso project and shipped React onboarding flows at Tumblr. Stefan has repeatedly delivered measurable impact through pipeline optimization, cost reduction, and A/B-tested model improvements (e.g., +1.5% engagement uplift across millions of users). As an entrepreneur running his own web development firm, he blends product sensibility with technical leadership, mentoring teams and promoting developer communities. He is based in the Randstad and brings an uncommon mix of GIS, frontend, and ML engineering experience rooted in a humanities-trained analytical mindset.
10 years of coding experience
14 years of employment as a software developer
Thomas a kempis collegePropedeuse, Bedrijfskundige Informatie, Propedeuse, Bedrijfskundige Informatie at WindesheimBachelor of Arts (BA), Northwest European Archaeology, Bachelor of Arts (BA), Northwest European Archaeology at University of AmsterdamDe MarsweideMaster of Arts (MA), Northwestern European Archaeology, Master of Arts (MA), Northwestern European Archaeology at Universiteit van Amsterdam / University of Amsterdam
English, Dutch, German
Stackoverflow
911reputation
116kreached
64answers
4questions
Github Skills (16)
html10
wordpress10
css10
javascript10
react10
s69
accessibility9
redux7
nodejs7
web-performance6
bootstrap-modal6
web-components6
bootstrap6
stencil6
jquery6
Programming languages (7)
Github contributions (5)
Automattic/wp-calypso
Nov 2020 - Feb 2022
The JavaScript and API powered WordPress.com
Role in this project:
Front-end Developer
Front-end DeveloperContributions:270 reviews, 67 commits, 80 PRs in 1 year 3 months
Contributions summary:Stefan primarily contributed to the front-end components of the WordPress.com project, specifically focusing on the "Gutenboarding" and "Focused Launch" features. Their work involved enhancing the UI/UX by allowing for dynamic rendering of elements, improving accessibility, and refactoring components for better maintainability. The user also addressed styling issues and optimized the mobile view for improved usability, demonstrating a strong focus on user experience and visual consistency across devices.
apireactwordpressjavascriptes6
StefanNieuwenhuis/wc-trombone
Jul 2019 - Aug 2019
Contributions:35 commits, 21 pushes, 1 branch in 2 days
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