kt3k.org

Hello. I'm Yoshiya Hinosawa.

About

I'm a software engineer in 🇯🇵. My main programming language is JavaScript. I've published a number of npm modules. I write programs in other languages as well, like python, ruby, groovy, java, bash etc. I published some ruby gems, maven packages, gradle plugins.

I majored in Computer Science and Mathematics in Kyoto University and graduated in 2009 with a BA degree.

I worked as a full stack engineer in GREE (A Japanese social gaming company) from 2012 to 2014.

I worked as a freelance JavaScript engineer from 2015 to 2020. My main partners included CureApp, Recruit, and SEQSENSE.

I've been working full-time at Deno since January 2021. I work on Deno Standard Library, Deno CLI, Deno Deploy, and other various related projects.

I often use the id 'kt3k'

OSS Projects

These are the main OSS projects I've been contributing to.

• 🦕 Deno
• 💊 Cell (frontend tool, which I mainly use in my hobby projects)
• 🌉 LePont (webview <-> react-native bridge)

Other Links

• GitHub
• Threads
• Blue Sky
• Blog (Japanese)
• My weeknotes
• My random comments

© 2025 Yoshiya Hinosawa