Jui-Wen Chang

Front-End Engineer

I like creating interesting products and solving problems through learning new ways. Constantly thinking about how to design a beautiful interface that is also user-friendly.

A successful front-end shouldn't be satisfied by simply finishing the UI mockup, but you also need to understand the context and reasons.



  • HTML
  • CSS
  • JavaScript
  • React
  • React Router


  • Git / GitHub
  • Webpack
  • Postman
  • ESLint
  • Prettier


  • Python ( Flask )
  • MySQL
  • Firebase
  • AWS  EC2

Design Tools

  Adobe XD      Photoshop        Adobe Premiere    


MyTI - Collect your favorite Esport tours


  • React、React Router for SPA
  • React Hook for making a custom and reusable calendar hook
  • Firebase with database、chat room、third-party login、storage
  • D3 for interactive information display 
  • Styled-Components for CSS、RWD
  • Bundled files by Webpack
  • Python for fetching api data into json documents
  • Use Adobe XD design ui

One Day Trip in Taipei


  • Applied MVC to front-end JavaScript
  • RESTful API for all apis design
  • RWD - use CSS Flexbox system
  • Integrated TapPay for payment system
  • Python Flask as backend solution
  • Use MySQL database
  • Solve MySQL’s auto-stop connecting by
  • connection pool
  • Nginx for AWS EC2 proxy
  • Test api by Postman


Web Trainee  •  WeHelp Bootcamp

Feb 2021 - Aug 2021

  • For half a year, we have arranged at least 60 hours of learning every week.
  • Learning basic web knowledge and structure by practicing different types of projects.
  • Finished a travel e-commerce website with Python Flask and JavaScript. 
  • Collaborating with other classmates, we produced a weather forecast website.
  • Finished an Esport website by React and Firebase.

Web Editor •  ESGO

Apr 2019 -  Dec 2020

  • Plan our website activities, special topics.
  • Analyze user behavior by GA.
  • Plan web’s new function, block, re-design.
  • Manage a Weibo account. 

Video Director •  Freedom Media

Sep 2015 - Dec 2017

  • Product sport TV program, online video.
  • Write scripts.
  • From pre-production through to the final edit.
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