About

Hi, I’m kaseken (Kent Kaseda) — a Software Engineer based in Tokyo.
This blog explores core computer science concepts through the lens of mobile technology.

Experience

PLAID, Inc. — Software Engineer / Tech Lead of App Team (2025/07 – Present)

• Developing Mobile SDKs for various platforms (iOS, Android, Flutter, React Native).
• Leading a Mobile SRE initiative to improve the reliability and stability of Mobile SDKs.
• Managing a team of three senior engineers and leading hiring efforts for Mobile SDK engineers.

Monoxer, Inc. — Senior Software Engineer (2021/04 – 2025/06)

• Tech lead in Mobile (both iOS & Android) development.
• Backend development with Scala.
• Frontend development with React/TypeScript.

playground Co., Ltd. — Software Engineer (2019/11 – 2021/03)

• Backend development with Ruby, Rails, and MySQL.
• Frontend development with TypeScript, Angular, and RxJS.
• iOS development with Swift.

Selected Works

• Conference Talk at Kotlin Fest 2025: Understanding Coroutines from Internal Implementation

Education

Kyoto University (2016 – 2018)

Master of Agriculture, Forest Science

Kyoto University (2012 – 2016)

Bachelor of Agriculture, Forest Science