Ryu Yamada
Software Engineer, Payment Platform
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolRyu Yamada is a software engineer with 8 years of backend-focused experience, currently driving payment platform development at Mercari in Chiyoda, Japan. He has led cross-functional initiatives—acting as engineering lead and project manager—for large-scale payment integrations, including end-to-end installment payments for Mercari Shops and a year-long global payment domain effort with ~30 contributors. His work automating merchant onboarding and periodic screening demonstrates a knack for translating regulatory requirements into scalable, automated systems. Recognized with Mercari’s Merpay Move Fast Value Award, he blends technical depth with product-minded leadership. Trained in physics at Kyoto University, he brings analytical rigor and low-level systems experience (UEFI, device drivers) uncommon for product-focused backend engineers.
8 years of coding experience
1 year of employment as a software developer
Graduate schoold of Physics, Astrophysics, Graduate schoold of Physics, Astrophysics at 京都大学
Chinese
Github Skills (32)
json10
amazon-web-services10
rdbms10
relational-databases10
mysql9
mariadb9
mysql-server9
kotlin9
code-generator9
geographical-information-system9
sql9
database9
sqlite8
storage-engine8
nearest-neighbor-search8
Programming languages (6)
Github contributions (5)
yokonao/tychyDB
Jul 2021 - Feb 2022
tychy and yokonao challenge to implement relational database
Contributions:23 reviews, 92 PRs, 83 pushes in 7 months
relationalmysqlrelational-databasedatabasepostgresql
tychy/toukibo-parser
Sep 2023 - Mar 2025
商業登記簿パーサー
Contributions:37 releases, 1 review, 173 PRs in 1 year 7 months
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