Fumito Haga
ソフトウェアエンジニア at Recruit Co.,Ltd.
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolFumito Haga is a Tokyo-based software engineer with nine years’ experience specializing in server-side development and performance tuning. He currently builds backend systems at Recruit and contributes Go-based side projects, with a track record spanning internships and production work at Akatsuki and GNEX. Fumito handles requirements through implementation and has practical expertise optimizing real-world services—he won his company ISUCON and helped author the 2020 ISUCON problem set, later competing in the 2021 finals. Driven by thoughtful, minimal design ("Small is beautiful"), he focuses on service architectures that scale to diverse users. His background in computer science from University of Aizu underpins a pragmatic approach to reliable, high-performance systems.
9 years of coding experience
学士 (コンピュータ理工学), コンピュータ理工学部, 学士 (コンピュータ理工学), コンピュータ理工学部 at 会津大学
Github Skills (35)
bounding10
react9
nextjs8
zap8
typescript8
ansible-collections7
discord-bot7
python7
diet7
risk-assessment6
golang6
code-generator6
discord6
command-line-tool5
computer-vision5
Programming languages (9)
Github contributions (5)
hatobus/HANIYAMA
Jun 2018 - Nov 2018
This is the repository that u-aizu smart-agri 2018
Contributions:63 commits, 24 PRs, 42 pushes in 4 months
risk-assessmentansible-collectionsagri
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