Chiba Tomofumi
会社員 at 仙台ペインクリニック
Sendai, Japan
Summary
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RockstarTomofumi Chiba is a seasoned software engineer based in Sendai, Japan, with 13 years of hands-on experience building front-end and full-stack solutions. He has strong TypeScript and React skills demonstrated by creating a Chrome Extension starter and implementing UX-focused features like URL and time displays. Beyond UI work, he has contributed to the high-profile Deno runtime—fixing bugs, adding programmatic proxy support, and improving CLI/help behavior—showing comfort across tooling, runtime, and language-server concerns. Employed at Sendai Pain Clinic since 2007, he blends long-term organizational familiarity with modern open-source practice. Tomofumi’s profile reflects a pragmatic engineer who moves fluidly between polish on the client side and robust contributions to infrastructure-level projects.
13 years of coding experience
Github Skills (26)
deno10
javascript10
testing10
typescript10
proxy10
chrome-extension10
http-proxy10
google-chrome-extension10
typescript-types10
typescripts10
react10
api-design9
command-line-interface9
networking9
jquery9
Programming languages (7)
Github contributions (5)
chibat/chrome-extension-typescript-starter
Nov 2016 - Jan 2023
Chrome Extension TypeScript Starter
Role in this project:
Front-end Developer
Front-end DeveloperContributions:101 commits, 32 PRs, 107 pushes in 6 years 3 months
Contributions summary:Chiba primarily focused on developing the front-end aspects of the Chrome extension. They implemented features within the popup and options pages, incorporating URL and time display functionality. The contributions included integrating jQuery, and utilizing TypeScript, and React to improve the user interface and functionality of the extension.
typescript-starterreacttemplatechrome-extension-typescriptboilerplate
denoland/deno
Jan 2020 - Oct 2022
A modern runtime for JavaScript and TypeScript.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:3 reviews, 10 commits, 11 PRs in 2 years 9 months
Contributions summary:Chiba contributed to the Deno runtime by fixing bugs, implementing features, and writing tests. Their work includes fixing a `curl.ts` file, adding a `NO_PROXY` option to the `deno help` command, and adding programmatic proxy support using `createHttpClient`. Furthermore, they fixed an issue with `deno install --prompt` and treated empty import map configurations as `none` within the language server. This indicates they are proficient across multiple areas of the project.
rustjavascriptruntimedenotypescript
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