Honestly, I took the interview a while back so I do not entirely remember the process. I believe there was a screening call, followed by a formal interview with a mini case included, and then a final round with a much more extensive case and a presentation based on data files they sent out. The final round was three hours to my knowledge. What came from the interview process, however, is where I was let down. They informed me three or so weeks after my final round that they need to figure out internal planning and that they are still extremely excited about the prospect of my interview process and will keep me in the loop. I was, since then, ghosted. I reached out a few weeks later, no response. I reached out again a few months out asking if there any information they could provide me, nothing. I was awfully disappointed as a prepared upwards of 25 hours solely for the final round.