Significantly improved performance of the mixbook.com's storefront, making it blazing fast. Using Webpack/TypeScript/Node/React, improving the performance 2-3 times compared to the previous version of the storefront.
Before that I was a tech lead and an architect of the the new photo books online editor (a rewrite of the old Flex editor). It’s a fairly large application, written in React/Redux/TypeScript - I was building the architecture, that allows the team to develop it very fast and efficient, and also implemented a large piece of the app.