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CareersProduct Designer × AI Coding · Product & Technology

Product Designer (UI/UX × AI Coding)

Not design alone: you also build with AI coding. A hybrid role shaping the Tonakai experience

Experienced hireFull-time
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Responsibilities
  • UI/UX design for Tonakai (web and app)
  • Front-end implementation of screens and landing pages with AI coding tools such as Claude Code and Cursor
  • Prototyping and testing with AI tools
  • Own the work end to end, from user research and information design to post-launch improvements
Requirements
  • Fluent daily use of generative AI tools (ChatGPT, Claude, Gemini, etc.) (including AI tools for design and prototyping)
  • Hands-on UI/UX design experience for web or apps
  • Able to build simple screens and tools yourself with AI coding tools (basic HTML, CSS and JavaScript)
  • Not a design-only role: you are comfortable taking on development and operations too
  • Portfolio required
Salary
  • Annual salary ¥4.5M–¥7.5M (based on experience and skills)
Before you apply
  • Ebisu office, Tokyo (on-site)
  • Business-level Japanese or above required. Bilingual Japanese/Chinese, Korean or English welcome
  • Ideally 5+ years of hands-on experience. With less, show your interest and ability to learn through your work
  • Non-Japanese nationals need a status of residence that permits work
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