Very disorganized process, first I was invited to an online interview with a single possible time slot. After being offered an alternative date, the interview apparently needed to be postponed by Biontech one day before it should have happened. I've never received a new date for the interview, and email follow-ups were just followed by automatically generate mails thanking me for the friendly interview (which did not even happen) and asking for patience due to many applicants.

2 rounds (1 remote 30 min, 1 in person 2 h). 1st round with team lead, 2nd round with team + department lead (presentation + interview) and then with whole team.