Daishi Kato
Frontend Architect at axlight.com
Tokyo, Japan
Summary
🤩
Rockstar🎓
Top SchoolDaishi Kato is a Frontend Architect based in Tokyo with 13 years of experience designing performant React-based UIs and state-management libraries. He’s the author and maintainer behind widely used open-source projects—including Zustand, Jotai, Valtio and the Waku framework—and has a track record of improving developer tooling and documentation across projects like jsdom and Raycast. Comfortable as both a hands-on engineer and an architect, he has driven core implementation work (proxies, hooks, SSR/prerendering) and pragmatic refactors that improved API consistency and test coverage. His career spans research at NEC through senior and freelance roles, combining deep web-standards knowledge with practical product delivery. A remote-work advocate fluent in building developer-friendly libraries, he often optimizes subtle behaviors (e.g., replace semantics, nested namespace docs, hashchange/XHR quirks) that quietly improve large ecosystems.
13 years of coding experience
26 years of employment as a software developer
Master of Science (M.S.), Computer Science, Master of Science (M.S.), Computer Science at Tokyo Institute of Technology
English, Japanese
Github Skills (36)
hook10
javascript10
benchmark10
xmlhttprequest10
react-hooks10
animation10
testing10
typescript10
benchmarking10
context-api10
api-documentation10
browser-api10
svg10
jestjs10
typescript-types10
Programming languages (10)
Github contributions (5)
dai-shi/use-context-selector
Jul 2019 - Nov 2022
React useContextSelector hook in userland
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:12 reviews, 255 commits, 72 PRs in 3 years 4 months
Contributions summary:Daishi primarily contributed to the core functionality of a React hook library. Their initial commit established the foundational code, and subsequent commits introduced features like context selection, state management, and experimental support for suspense/transitions. They were involved in refactoring the code for optimization and addressing edge cases, including support for different React rendering environments. The user also wrote examples and tests to validate the functionality of the library, showcasing their understanding of front-end development principles.
reactcustom-hookreact-contextreact-hooksuserland
wakujs/waku
Mar 2023 - Mar 2023
⛩️ The minimal React framework
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:1296 reviews, 108 commits, 1423 PRs in 18 days
Contributions summary:Daishi primarily contributed to the development of the Waku framework, focusing on implementing core functionalities and examples. They added and modified server and client-side components using React and TypeScript. The user also worked on setting up the development server and build process, including integrating SWC for compilation and exploring pre-rendering capabilities.
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