Three round of interviews with the first technical interview, the second case assignment and 1 hour presentation, and the third hr interview.
Do not take their interviews seriously, especially their case assignment.
1. even you perform perfectly on their interview, they will judge you in the end by your past related experience and turn you down by someone else has a little bit more specific experience. Could you not see that from the CV? Could you please after the first interview and before the case assignment tell people the truth. So they have choice to decide if they want to waste their one week for the case assignment.
2. the data of the case assignment is messed up. Most of your one week time is wasted on
figuring out the logic behind the data and in the end there is no logic behind the data it's totally messed up data.