Ryuichi Hayashida
Senior Project Manager at XXXX Co., Ltd.
Tokyo, Japan
Summary
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RockstarRyuichi Hayashida is a Senior Project Manager based in Tokyo with 14 years of experience delivering customer-facing applications from pre-sales through service launch. He blends hands-on engineering skills—contributing to prominent open-source projects like Neovim, vim, wasm-bindgen, and clap—with program management and delivery ownership at XXXX Co., Ltd. Comfortable across stacks, his contributions span TypeScript, Rust, C, WebAssembly, and editor tooling, often improving performance, UX, and CI automation. He has a knack for practical tooling: continuous benchmarking GitHub Actions, editor plugins, and CLI/packaging enhancements that make developer workflows more reliable. Colleagues know him as a meticulous refactorer who reduces allocations, tightens tests, and documents behavior, and as someone who enjoys software development with a sense of humor (and the occasional bug) like a dog at play.
14 years of coding experience
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (139)
webview10
parser10
package-management10
testing10
plugin-development10
windows10
vimscript10
command-line-interface10
language-server-protocol10
vim-plugin10
rust-wasm10
c1110
type-definition10
refactor10
c1710
Programming languages (38)
Github contributions (5)
rhysd/vim.wasm
Jul 2018 - Dec 2022
Vim editor ported to WebAssembly
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 releases, 1 review, 508 commits in 4 years 6 months
Contributions summary:Ryuichi primarily contributed to implementing the WebAssembly (Wasm) port of the Vim editor, focusing on the GUI backend. Their contributions included integrating the Wasm backend with the build toolchain, adding initial, albeit empty, implementations for the Wasm GUI backend, and addressing build-related issues. The changes also involved sending color as a long integer to the JS side and enabling the functionality to resize the window. The modifications also involved a shift to using the UTF8ToString for extracting strings.
vimwebassemblywasmeditor
benchmark-action/github-action-benchmark
Nov 2019 - Oct 2021
GitHub Action for continuous benchmarking to keep performance
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:23 releases, 1 review, 353 commits in 1 year 11 months
Contributions summary:Ryuichi primarily contributed to the development and maintenance of a continuous benchmarking tool implemented as a GitHub Action. Their work involved using TypeScript, integrating with GitHub Actions for CI purposes, and implementing new tools for benchmarking like Go and Benchmark.js. The user was also responsible for refactoring the documentation and updating the styling of the default HTML results to make the benchmark results easier to view and improve their readability.
benchmarkingbenchmarkci
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