I went through a couple of virtual interviews with HR and hiring manager, then an on-site case study presentation. The first interviews were pretty standard, related to my experience and my skills. The case study was based on the purpose of the role. 20min presentation followed by 40min of questions, or at least this was the specification in the invitation. In reality, it was a one hour mix of presentation and questions. Interviewers were very nice and professional, no stress was felt during the process and despite I didn't get selected at the end, I've got a good feedback from HR