Reo Ishiyama
Webデベロッパー at DMM.com Group
Osaka, Japan
Summary
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RockstarReo Ishiyama is a seasoned web developer based in Osaka with seven years of experience building frontend-first products and full-stack features for Japanese tech companies. He has moved large legacy UIs to modern React architectures, tackled tricky DOM interop and performance challenges, and transitioned class-based domain models into Redux-powered, memoized state to reduce bugs and improve rendering. Reo has shipped cloud tax and business workflows using TypeScript (Next.js) and Ruby on Rails at Money Forward and now contributes to DMM.com Group’s web platform. Colleagues rely on him to evaluate impact broadly—balancing implementation cost, UX, and cross-team communication—and he frequently presents technical trade-offs in ways non-engineers can act on. An engineer who pairs practical domain-driven thinking with frontend performance craft, he brings both attention to detail and a pragmatic approach to modernization.
7 years of coding experience
6 years of employment as a software developer
Github Skills (8)
blitz9
javascript8
react8
blitzjs7
prisma7
nextjs7
typescript7
graphql5
Programming languages (6)
Github contributions (5)
reo777/reo777
Sep 2020 - Dec 2022
Contributions:15 pushes, 2 branches in 2 years 3 months
reo777/blog
Jul 2020 - Jul 2020
repository for blog
Contributions:2 PRs, 45 pushes, 2 branches in 16 days
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