Ken'ichi Matsui
Group Manager at Mobility Technologies (DeNAより出向)
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolKen'ichi Matsui is a data science leader and Group Manager at DeNA/Mobility Technologies with 11+ years of experience building ML-driven products and teams. A top-performing Kaggle Competition Master (top 0.2%) with multiple medals and high rankings across NLP, vision and tabular challenges, he combines research-grade modeling skills with practical product deployment. He has published and presented widely on applied analytics, contributed feature enhancements to notable OSS projects like LightGBM and Folium, and co-authored a book on data analytics. Prior roles at Accenture and SoftBank sharpened his ability to translate business requirements into scalable analytics solutions, and his technical blog and community activity (Qiita top contributor) reflect a commitment to knowledge-sharing beyond his corporate responsibilities.
11 years of coding experience
7 years of employment as a software developer
BA, Economics, BA, Economics at Aoyama Gakuin University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
data-visualizations10
maps10
javascript10
data-visualisation10
data-visualization10
python10
testing8
pytest8
Programming languages (4)
Github contributions (5)
python-visualization/folium
Apr 2016 - Apr 2016
Python Data. Leaflet.js Maps.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 commits, 1 PR in 1 day
Contributions summary:Ken'ichi primarily contributed to adding and testing new features related to geometric shapes within the Folium library, specifically focusing on rectangle and polygon markers. Their work involved defining the features in Python and creating corresponding JavaScript code using templates to render the shapes on the map. They also addressed warnings and import errors, demonstrating a focus on code quality and library functionality.
js-mapsleafletleaflet-jspythondata-science
matsuken92/matsuken92.github.io
Feb 2015 - Dec 2020
Contributions:27 commits, 38 pushes, 1 branch in 5 years 10 months
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