About Me

Hi, I'm Jumpei Yokoyama πŸ‘‹
I'm a software developer who loves building.


πŸ§‘β€πŸ’» What I Do

I'm currently working as a freelance developer, focusing on:

  • I work as a backend developer in client teams, helping build and maintain web applications.
  • I'm developing a cross-platform app as a solo project, focusing on privacy and local-first design.
  • I'm actively exploring AI-assisted development workflows to boost productivity and creativity.

I believe great software is built with care, clarity, and curiosity.


πŸ” What I'm Working On

Right now, I'm developing a privacy-first Markdown editor called kinvault, designed for people who want to store sensitive notes securely, with local encryption and zero cloud dependency.

(You can read more about it here if you're curious.)


πŸ› οΈ Tools I Like

  • Languages: Go, TypeScript, Python
  • Frameworks: Gin, Gorm, React Native
  • Tools: Vim, Cursor, Cline, Obsidian, Git

I’m always looking for tools that get out of the way and help me think better.


πŸ“ Where I'm Based

I live in Kobe, Japan, working remotely with a client in Japan.
Whether you're down the street or across the ocean, I'd love to collaborate.


🀝 Let's Connect

Want to work together? Have a cool idea? Just want to say hi?
Feel free to reach out via the Contact page or connect on X / GitHub.


Thanks for stopping by πŸ‘‹