First is an interview with the head of engineering. The second is to submit a project. The topic is related to GRPC. Candidates need to apply the first principles with KISS. The third is team matching. Last is an interview with the CTO and CEO. I don't know why they have stopped it before the final interview coming the same day. The head of engineering has provided two reasons, but the two reasons are types of reasons. It is Infra side of engineering and architectural decisions. It is not clear to me why I am wrong. I don't think that the two interviewer of team matching has questioned me about the two type of reasons.