Mitsumasa Ichihara
ソフトウェアエンジニア at DeNA
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolMitsumasa Ichihara is a software engineer based in Tokyo with eight years of experience building web and payment systems and a background in applied mathematics. Currently a lead engineer at DeNA, he designs and operates account infrastructure and payment services, bringing production rigour to new development projects. His earlier work includes Ruby on Rails web services and a technical staff role at AIST, reflecting a mix of industry and research-adjacent experience. Proficient in Deep Learning, Python, JavaScript and TypeScript, he bridges ML tooling and full-stack development to deliver practical solutions. Known for combining analytical thinking from his math degree with hands-on system design, he focuses on reliable, secure services that scale.
8 years of coding experience
Bachelor's degree, Applied Mathematics, Bachelor's degree, Applied Mathematics at Tokyo University of Science
Github Skills (10)
fisheye10
robotics10
panorama10
slam10
visual-odometry10
computer-vision9
middleware6
encryption5
prisma3
slack3
Programming languages (6)
Github contributions (5)
ilim0t/video-utils-chrome-extension
Jun 2020 - Oct 2025
終了後自動タブ閉じ等の機能を実装するChrome拡張機能
Contributions:10 pushes, 1 branch, 1 comment in 5 years 5 months
chromechrome-extension
TUS-OSK/bushitsuchan-PC
Nov 2019 - Sep 2022
部室の様子を見れるシステム 部室ちゃん
Contributions:19 PRs, 5 pushes, 5 comments in 2 years 10 months
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