Proxify Sr. Front End/ React.js Developer interview questions

The interview process at Proxify consisted of three parts. The first stage was a three-hour coding assessment. It included around 50 multiple-choice questions focused on Next.js knowledge, along with two practical coding tasks. One task required building a simple music player, and the other involved implementing functionality—likely using MutationObserver—to load images only when they scrolled into view. After completing the assessment, I had a brief interview with HR, followed by a live coding session.