Ayana Yamazaki

Product Builder

Turning complex frontline work into products that work

From field research and product definition to roadmaps, code-based prototypes, and implementation.

About

Ayana Yamazaki

I am a product designer who translates complex frontline operations into products people can use.

I have helped build products in agriculture and customer success from their earliest stages. My work spans field research, understanding operational constraints, problem definition, roadmap planning, prototyping, and UI design. Today, I use AI and code to make not only screens but product behavior tangible and testable.

I moved from Tokyo to Hokkaido in 2021. I focus on B2B products shaped by complex workflows and domain-specific constraints, including manufacturing, agriculture, healthcare, and rail.

GOOD DESIGN AWARD 2025 Gold Award (Top 20)

Portrait of Ayana Yamazaki

Experience

2026 - Present

CADDi Inc.

Product design for an AI platform for manufacturing. I also explore AI-native specification design using Claude Code and Storybook.

2022 - 2025

EZOWIN Inc.

Joined as the first designer for an agricultural operations product. Led user research, UX and UI design, and onboarding, contributing to a Good Design Gold Award.

2021 - 2022

Freelance

Designed UX and UI for B2B products.

2019 - 2021

HiCustomer Inc.

Joined as the first designer for a customer success SaaS product.

2017 - 2019

Hitachi, Ltd., Research & Development Group

Led user research and UI/UX design for railway systems. Contributed to new product capabilities and contracts, and was granted patents and design rights.

2017

B.A. in Product Design, Kanazawa College of Art

2014 - 2015

University of Toronto Lab

Took a year away from university to build an app with a multinational team.