Yuri Koshiishi

Web Developer & Producer

東京(Tokyo)-based developer who enjoys building things - web, mobile apps, whatever needs building. Always learning something new.

01

About

I build software that solves real pain points, whether that's creating smoother user experiences, optimizing performance, or just making complex workflows simpler for people to navigate.

I spend a lot of time on the frontend work where user experience really matters, but I work across the full stack when needed. I care about writing maintainable code and getting the details right so interfaces feel intuitive. I also enjoy diving into mobile development when projects call for it.

02

Technologies

JavaScript TypeScript React Next.js React Native Expo Sass Tailwind Node.js Fastify Express Jest PostgreSQL Firebase Webpack Vite Git Figma Adobe Analytics Adobe Target
03

Experience

Web Producer

Adobe, Tokyo Japan
2022 - Present

Implement A/B testing and personalization experiences on adobe.com using JavaScript, HTML, and CSS. Develop internal tools that automate workflows for web producers and product managers.

Web Developer

Freelance, Tokyo Japan
2020 - 2022

Built web applications using React and serverless architectures. Developed a media site and its content management system with Next.js and Firebase. Led migration from Gulp to Webpack.

E-Commerce Specialist

Dome Corporation, Tokyo Japan
2018 - 2020

Optimized e-commerce user experiences through A/B testing and conversion rate improvements. Developed custom landing pages and campaign implementations using Adobe Target, HTML, CSS, and JavaScript.

04

Connect

Feel free to reach out if you want to talk about projects, share ideas, or just say hi.

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