PRODUCT / LOCALIZATION / VISUAL

Takumi Suehara

Design and development across apps, websites and research tools.

Technologies and examples ↓

Selected work

totio Ticket Booking · Date and language — Date and language

totio Ticket Booking · Guests and availability — Guests and availability

totio Ticket Booking · Add-ons and total — Add-ons and total

totio Ticket Booking · Stripe Checkout — Stripe Checkout

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WEB / TICKET BOOKING

totio Ticket Booking

Choose a date and guests, add extras and continue to payment.

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MyPhrase · Multilingual translation — Multilingual translation

MyPhrase · Translate and compare — Translate and compare

MyPhrase · Simultaneous translation — Simultaneous translation

MyPhrase · Translate plans — Translate plans

MyPhrase · History and phrases — History and phrases

MyPhrase · Add and share phrases — Add and share phrases

MyPhrase · Prepare study audio — Prepare study audio

MyPhrase · Offline learning — Offline learning

Learning profile

MyPhrase · Custom translation — Custom translation

MyPhrase · Ruby settings — Ruby settings

MyPhrase · Copy language — Copy language

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iOS / MULTILINGUAL UX

MyPhrase

16 iPhone screens for translation, saved phrases, learning and settings.

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APP

totio

Translate, review and publish multilingual websites.

WEB

POS System · QR Ordering

Multilingual dining, from menu to order history.

WEB

POS System · Staff

Tables, orders and checkout in one staff interface.

FoMD · Oral sensor concept — Oral sensor concept

FoMD · Oral sensor top view — Oral sensor top view

FoMD · Interactive oral 3D — Interactive oral 3D

FoMD · Synthetic oral signal replay — Synthetic oral signal replay

FoMD · Six-layer patch exploded view — Six-layer patch exploded view

FoMD · Reported urinary GIP research — Reported urinary GIP research

FoMD · Synthetic CSV export — Synthetic CSV export

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FoMD

GlutenSignal: an educational research app for oral signals, IL-2 assumptions and urinary GIP research.

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APP

MyPhrase Uni

Find and revisit course materials in one place.

TOOLS

Codex Desk

Keep projects, tabs and terminals together.

RESEARCH

BiG Lab

Compare research data, papers and models.

APP

CourtMotion DunkLab

Connect video review with the next practice.

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TECHNOLOGIES

Technologies

I work across product planning, UI/UX, implementation and testing for multilingual web and app experiences. The examples below include collaborative and AI-assisted development.

Programming languages

TypeScript
JavaScript
Swift
Python®
Ruby

Development examples

TypeScript: Multilingual web interfaces, state management and asynchronous workflows.
JavaScript: Language switching, website behavior and Node.js tools.
Swift: Native Apple clients with SwiftUI and learning-state improvements.
Python: FastAPI services, data validation and analysis utilities.
Ruby: Rails service development, state validation and regression tests.

Web standards

HTML5
CSS

Development examples

HTML5: Semantic page structure and multilingual content.
CSS: Responsive layouts, RTL support and visible focus states.

Frameworks & runtimes

React®FastAPI: Multilingual totio interfaces and APIs.
SwiftUI React Native®Expo: MyPhrase development for Apple, Android and web.
Ruby on Rails®: State validation and regression tests for a related hospitality ordering service.
Node.js®: JavaScript runtime used for local web tools.

Supporting tools & infrastructure

Vite

GitHub Cloudflare

Vite (public website), GitHub, regression testing and Cloudflare (totio infrastructure).

PROJECTS

Projects

Products, research tools, film and VR.

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WEB / TICKET BOOKING

totio Ticket Booking

Choose a date and guests, add extras and continue to payment.

Role: Booking flow UI/UX and implementation with AI assistance
Tech: Ruby on Rails · React / TypeScript · PostgreSQL · Stripe

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APP / MULTILINGUAL UX

MyPhrase

A multilingual learning app I co-developed across product planning and UI/UX. I built its public website independently. Current development includes native Apple clients in Swift/SwiftUI, with React Native/Expo retained for Android and web.

Release status of the new native client is tracked separately.

Role: Product planning, UI/UX and co-development. Independent website design and implementation. Implementation and testing with AI assistance.
Tech: Swift / SwiftUI (Apple) · React Native / Expo (Android & web) · HTML / CSS / JavaScript / Vite (public website)

HP ↗LinkedIn ↗App Store ↗

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WEB / LOCALIZATION

totio

I co-develop a product for website translation, review and publishing. My contributions span TypeScript/React interfaces and Python/FastAPI services, including input validation and project-scoped data processing.

Role: Co-development. Multilingual interface and API improvements. Implementation and testing with AI assistance.
Tech: TypeScript / React · Python / FastAPI · Cloudflare

HP ↗LinkedIn ↗

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