I was responsible for building UI using React.js and integrating Solidity functions using web3.js
Applied the advanced react design patterns for reuse of components, easy-maintenance, high performance. For productivity, I was also responsible on diagnose, profile, and fix performance problems in this application using the Browser Performance Profiler, React DevTools Profiler, and proven to React optimization techniques. I also needed to test React components and applications for shipping this web application with confidence.