After a pleasant call with a HR person I had 2 video calls with the team lead. The conversation was very open and I got a very good idea of the project I would be working on. In a third video call with another engineer I was tested a little in terms of basic programming skills and understanding of machine learning and computer vision concepts. Then I was invited to an on-site interview, which consisted of 4 one-on-one interviews with the team lead, a recruiter and 2 other people from other teams. I found all interviews very nice and never felt under pressure. At this stage there were very few technical questions. It was more about getting to know me as a person and explaining how great it is to work for the company ;-)
Travel, accommodation and meals were paid by Jet (I had to travel to Dublin from abroad fro the interview)