Interview process took a couple of weeks. HR phone screen and then the virtual onsite. Virtual onsite interview was a 3 hr long video interview with three different interviews back to back. First was a learning test, evaluating ability to read complicated code. Second was technical, leetcode hard problem. Third was systems, design solution for client.

Had a chat with HR and then a technical interview with an engineer. They gave some some quite normal leatcode type questions that I had to answer to continue to the next steps.