Portfolio · 2020–2026 Tokyo, JP

Marsel
Bait.

Product designer in Tokyo. Four years owning end-to-end UI at a bilingual recruitment platform. Currently shipping brand, web, and visual systems at a cultural-tourism company. Building AI-native tooling on the side: five MCP servers on npm, one Chrome extension.

Based in Tokyo, Japan
Visa Engineer visa (Japan)
English Native · TOEIC 970
Availability Open to conversations
Selected work

Two companies. Years of end-to-end ownership across bilingual recruitment and cultural design in Japan.

Enjin.world platform hero image
2020–2024

Enjin.world

Bilingual recruitment platform. Three sub-brands, one system. Sole designer on the 2023 revamp after four years on the product.

UI/UX · Branding · Graphic
Miraidukuri tour site: cinematic landing hero with 'Timeless wisdom, Future vision' lockup over Japanese cuisine imagery
2024–present

Miraidukuri

Tour booking site, partner brochures, the Mirai-kun mascot, YouTube vlog edits, and the Japan Tea Action 2025 campaign identity.

Web · Print · Illustration · Video
Personal projects

Zero-to-one work. An exploration into designing for AI agents, and a bet on what product work looks like when the user isn't always human.

  • Rippr

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

    npm Chrome Web Store GitHub
    2026

  • Japan UX MCP

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

    npm GitHub
    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.

    npm GitHub
    2026

  • The Seer

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

    Preview
    2026
About

Product design, brand, and AI-native tooling in Tokyo.

Four years owning product design at Enjin as the sole designer on the 2023 revamp across three verticals: Career, Forum, and Community. Ran 20+ user interviews, mentored design interns, and built a component library that cut design-to-engineering handoff friction. Owned end-to-end from information architecture through shipped UI.

Currently at Miraidukuri Company, a Tokyo cultural-tourism company, leading brand and web work.

On the side, shipping AI-native tooling. Five MCP servers published to npm with 2,000+ monthly downloads. A Chrome extension on the Web Store. Several web apps. All designed and built with AI-assisted development.

Currently Designer, 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 Claude Code in Action · AI Fluency Agent Skills · Generative AI · Google UX
Languages English · Native · TOEIC 970 Filipino · Bahasa · Japanese functional
Tools Figma · Illustrator · After Effects · Claude Code

Product design is not about aesthetics. It is about judgment. What to build, what to cut, what to leave alone.

Get in touch
LinkedIn GitHub