Apitree – Customer portal for E.ON (energy supplier) with 1.5 milion users
Responsibility: Build a robust front-end for customer portal for E.ON (German power supplier) in the team of 5 developers. Deliver solution that handles complex logic of an app for 1.5 million users.
Achievements: Developed a library of reusable components used across the app. Shipped bundle of complex mobile-first features (such as payments) with emphasis on UX and performance.