There was a LOT of calls and rounds involved. First there is a general introduction call. Then, two technical interviews with live-programming task. Then, *five* other interview rounds with people from different sides of company. So, totally, eight rounds of interview, which is quite a lot. The last four are "culture fit" ones. I found the tech interviews rather easy, but I failed the "culture fit" ones for (IMO) dubious reasons. But, the HR person was very helpful and told me feedback even at the last step. So that's great I guess.