One interview with the line manager, the second round is a video interview with the director. I was already an intern in another team, the line manager interviewed me very casually, he asked me about my career plan. But the final interview is more formal since the director is a serious Chinese guy.

Short interview by phone, second interview with HR and that same day with the people might be your team leader, if you convinced them, they will call a Chinese, the last but the final decision maker.