EN

JP

EN

JP

EN

JP

Selected work

+4.7% CVR

E-commerce page

Why does good design fail when it crosses cultures?

Led the end-to-end localization design strategy, redesigning the product page through information architecture and UI design that earned the trust of Japanese consumers.

+4.7% CVR

E-commerce page

Why does good design fail when it crosses cultures?

Led the end-to-end localization design strategy, redesigning the product page through information architecture and UI design that earned the trust of Japanese consumers.

Presented at forum

Consumer app

What happens when a device outlives its own software?

With a focus on restoring unsupported smart devices, I designed the end-to-end MVP of a sous vide cooking app.

Presented at forum

Consumer app

What happens when a device outlives its own software?

With a focus on restoring unsupported smart devices, I designed the end-to-end MVP of a sous vide cooking app.

87-89% satisfaction rate

E-commerce feature

How to rebuild trust with a customer who just received a flawed device

Designed the MVP of a next-day replacement service with the goal of improving the experience for users who received faulty devices.

87-89% satisfaction rate

E-commerce feature

How to rebuild trust with a customer who just received a flawed device

Designed the MVP of a next-day replacement service with the goal of improving the experience for users who received faulty devices.

40+ components

AI SaaS

Building AI-native design system

Built a comprehensive Storybook design system for an AI SaaS product, defining components, tokens, and patterns to keep a fast-moving product visually and functionally consistent.

40+ components

AI SaaS

Building AI-native design system

Built a comprehensive Storybook design system for an AI SaaS product, defining components, tokens, and patterns to keep a fast-moving product visually and functionally consistent.

MVP shipped

SaaS

Reducing workflow interruptions by enabling seamless communication across tools

Co-designed a B2B chat platform MVP from the ground up to address internal communication challenges.

MVP shipped

SaaS

Reducing workflow interruptions by enabling seamless communication across tools

Co-designed a B2B chat platform MVP from the ground up to address internal communication challenges.

Skills

UI/UX Architecture

Prototyping

Stakeholder Alignment

UX Writing

Web Design

Component Architecture

UX Research

Data Analysis

Mobile App Design

Design Philosophy

Most design problems aren't what they appear to be. I spend a lot of time before the first frame — understanding what's actually being asked, what needs to hold up over time, and what the work needs to accomplish beyond looking good. The goal is always the same: make something complex feel simple.

Philosophy 01

Philosophy 02

Philosophy 03

03

Design Tied to Outcomes.

I think in terms of business value, not just visual quality. A beautiful screen that doesn't move a metric is a missed opportunity.

02

Systems, Not Just Screens.

I design with the second and third use case in mind — so the tenth feature costs less than the first, not more.

01

Solve the "Real" Problem.

Not as a reflex, but as a discipline. The cost of mistranslating the problem is higher than the cost of any design decision downstream.

03

Design Tied to Outcomes.

I think in terms of business value, not just visual quality. A beautiful screen that doesn't move a metric is a missed opportunity.

02

Systems, Not Just Screens.

I design with the second and third use case in mind — so the tenth feature costs less than the first, not more.

01

Solve the "Real" Problem.

Not as a reflex, but as a discipline. The cost of mistranslating the problem is higher than the cost of any design decision downstream.

About

Hi, I'm Yusei. A digital product designer based in Japan. Growing up, I always liked things that are beautiful and functional like a good rain jacket that keeps the rain out but still makes you feel good wearing it.

I'm not usually the loudest person in the room. I like to listen before I speak and think before I raise my hand. Design is similar in that sense to me. I think it's one of the quieter ways to change how people experience their day. Not dramatically. Just a little better, a little clearer.


Message me on LinkedIn or email - I'd love to learn more about you!

Product Designer

Yusei Matsutomo

Location

Japan

Remote

Resume

@2026yuseimatsutomo

Product Designer

Yusei Matsutomo

Location

Japan

Remote

Resume

@2026yuseimatsutomo

Product Designer

Yusei Matsutomo

Location

Japan

Remote

Resume

@2026yuseimatsutomo