Portfolio · 2020–2026

Marsel
Bait.

Product designer in Tokyo. Working across bilingual recruitment, multi-domain Japanese client work, and AI-native tooling. Building for the era when the user isn't always human.

Based in Tokyo, Japan
Visa Engineer visa (Japan)
Availability Open to senior product roles

Selected work

Bilingual product design, brand and visual systems, AI-native developer tools. End-to-end ownership across product, brand, and code.

Personal projects

Zero-to-one work. Designing for what I think the future is: AI agents as the user. The Seer is the exception, a bilingual astrology PWA I've wanted to build for years.

  • Rippr

    YouTube transcript extractor for AI agents. MCP server and Chrome extension. No API keys, three output formats.

    2026
  • Japan UX MCP

    Japanese web UX conventions as callable tools. Forms, typography, keigo, seasonal context. Ten tools, ten prompts, nine resources.

    2026
  • PayPay MCP

    MCP server for PayPay, Japan's largest QR wallet. Built on the Open Payment API. Sandbox-first, with refund and cancel gated behind explicit config flags.

    2026
  • The Seer

    A bilingual astrology PWA. Swiss Ephemeris precision, oracle tone, four profile types. In development.

    2026

Featured here. More on GitHub and npm.

About

Product design, brand systems, and AI-native tooling.

I led the 2023 Enjin revamp solo across three verticals: Career, Forum, Community. Twenty user interviews. A shared component library. End-to-end ownership from IA to shipped UI.

The current role spans bilingual web, brand identity, print, and campaign content. Closer to a creative director's scope than a typical product role, executed solo, sketch to ship.

Currently Customer-facing design (solo), Miraidukuri Company Tokyo · since 2024
Previously Product Designer, Enjin Inc. Tokyo · 2020–2024
Education M.A. Media Design, Keio University B.A. Visual Communication, UP Diliman
Certifications Google UX Design · Claude Code in Action · AI Fluency Agent Skills · Generative AI
Languages English · Native Filipino · Bahasa · Japanese conversational
Tools Figma · Photoshop · Illustrator · Adobe XD · After Effects · Claude Code
Get in touch