Two interviews, one with the HR and VP RnD and one with the team leader and department manager. The interviews were several days apart and the offer came after week or so .

The interview took place for 2 hours, most of the time dedicated to a design question and a code review. The interviewing process felt more like an argument and a conflict rather than a first technical interview. If the interview's goal is to understand the candidate's thinking process, using sarcastic language and interrupting the candidate's answers is not the way to do it.