The interview process appears thorough, but ultimately seemed to be more based on achieving a personal connection with your interviewer. Round 1 - 5 min screen - very easy Round 2 - online assessment Round 3 - 1 hour interview Round 4 - presentation requiring ~15 hours prep Rounds 1-3 were fine, nothing unexpected Round 4 you are asked to do a large amount of prep for a case study they provide. They recommend at least 15 hours of work. I put mine together and presented it back. I made some assumptions for the case study which the interviewer told me were not right and he became very fixated on this throughout the entire presentation. From my perspective, if I had made assumptions based on the info provided, I would expect some reflection from them on why their brief was unclear and. Ultimately an interview should try and and understand process, aptitude on the challenge and presentation / personal style. It seemed to me there was a right / wrong answer expected and the interviewer could not get past this. I received no feedback from my app (except a rejection email) and given they are asking candidates to put in so much time I found this rude and disrespectful to candidates. I would be cautious before applying and only do so if you have large amount of time to commit.