Initially had an online test via codility. Then a person from the team had a casual chat with me to check if my background and experience match what they are looking for. Next had a 1 hr technical interview with a senior software engineer. I passed that and next was the final round. Had four interviews in a single day. First was a system design, then hiring manager, then general tech interview and finally coding interview. Even though it was a fullstack position, they mostly wanted a front end person. So it was more focused on front end.