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 (5)
middleware5
encryption4
prisma3
slack3
rest3
Programming languages (6)
Github contributions (5)
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
TUS-OSK/slackbot
Mar 2020 - Sep 2022
slackbotたち
Contributions:6 PRs, 14 pushes, 9 branches in 2 years 6 months
slackslackbot
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