William Sayama
Developer Advocate
Greater Tokyo Area Japan
Summary
👤
Senior🎓
Top SchoolWilliam Sayama is a bilingual Developer Advocate with 11 years of experience building and growing the kintone developer ecosystem across Japan and internationally. He leads a small cross-cultural DevRel team, authors technical documentation and tutorials, and has self-published books and presented workshops on JavaScript, data visualization, REST API integrations and even VR integrations. Known for turning demos and event booths into measurable engagement—900+ Twitter followers and 35,000+ booth visitors—he combines hands-on technical teaching with strategic community campaigns. His background in translation and communications uniquely positions him to make complex API concepts accessible to diverse developer audiences.
11 years of coding experience
8 years of employment as a software developer
GPA 3.1, Bachelor of Arts, Major in Information Technology, GPA 3.1, Bachelor of Arts, Major in Information Technology at International Christian UniversityGPA 3.67, Master of Media Design, Media Design, GPA 3.67, Master of Media Design, Media Design at Keio University
Japanese, English
Github Skills (25)
sdk10
displays9
row9
development-tools9
plug9
wrench9
plugin8
rows7
monorepo7
datepicker6
dates6
pulse6
selector4
avatar4
api3
Programming languages (7)
Github contributions (5)
kintone-samples/SAMPLE-YouTube-embed-plug-in
Aug 2019 - Apr 2024
A sample Kintone plug-in to embed YouTube videos into Kintone.
Contributions:1 review, 1 PR, 1 push in 4 years 7 months
videosyoutube-videosyoutubeplug-inkintone
kintone-samples/SAMPLE-Table-user-count-Plug-in
Dec 2018 - Apr 2024
Contributions:1 review, 1 PR, 2 pushes in 5 years 4 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.