Front-End Engineer
based in London, U.K
Building web and mobile apps with a focus on performance and user experience

With over 4 years of experience building responsive websites and large-scale web and mobile applications, I'm skilled in JavaScript, TypeScript, and frameworks such as React.js, React Native, Next.js, Vue.js, and Nuxt.js.

I’m passionate about how UI and technology work together to create experiences that solve real problems and improve users' everyday lives. I specialize in performance optimization, focusing on Core Web Vitals to deliver fast, smooth, and user-friendly interfaces.

Work Experience

Sep 2023
-
Mar 2025

Front-End Engineer

Sharefull, inc | Tokyo, Japan
  • Enhanced a scalable mobile application with TypeScript and React Native, ensuring a seamless user experience while supporting its growth from 3M to 9M downloads.
  • Built and optimized four web applications with TypeScript and Nuxt.js, resolving 400+ issues (bugs, features, and optimizations), improving usability and development speed.
  • Improved mobile FCP (First Contentful Paint) by 57% (from 8.1s to 3.5s) and LCP (Largest Contentful Paint) by 74% (from 17.0s to 4.4s), significantly enhancing user experience in low connectivity environments.
  • Migrated the testing framework from Jest to Vitest, reducing CI/CD pipeline runtime by 33% and accelerating the development and release cycles.
  • Reviewed 10+ pull requests per week, improving code maintainability and reducing production issues.
TypeScript
React Native
Nuxt.js
Go
Sentry
CircleCI
Vitest
Storybook
Web Performance Optimization
Apr 2021
-
Aug 2023

Front-End Engineer

GrowGroup, inc | Aichi, Japan
  • Developed responsive client pages for 50+ companies, with one redesign increasing conversion rates by 177%, driving business growth.
  • Built a high-performance In-basket test app with React.js and Redux for a client company, enabling 200+ employees to simulate real-world email workflows.
  • Developed Persona AI, a serverless tool using Next.js and Firebase, automating persona generation and boosting marketing productivity for 400+ users.
React.js
Next.js
JavaScript
Node.js
jQuery
HTML
CSS
PHP
Firebase

Skills/Tech Stack

Programming and Markup Languages

JavaScript
TypeScript
Go
HTML
CSS
PHP
Node.js

Libraries & Frameworks

React.js
React Native
Next.js
Vue.js
Nuxt.js
jQuery

Tools & Platforms

Vercel
Firebase
CircleCI
Sentry
Vitest
Jest
Storybook

Achievements

OSS Contributions

Open source has played a huge role in my development as a front-end engineer. Now, I'm contributing however I can—through feature implementation, bug fixes, issue reporting, or anything else that helps.

Feel free to reach out via email
or find me online.