2.5 hour peer coding session. They send you the project description ahead of the interview. In my case it was to design a simple website that calls an external api and to display the data. During the call you're given a brief 15 minute introduction and if you have any questions. After that you're given 1 hour to complete the project. The rest of the time is spent with the engineers asking you about your design choices and thought process. Similar to a code review.