Broken up into several projects - the first is a quick and easy project, the second is a bit longer and you may receive follow-up questions. - Do not overthink the follow-up questions too much. Some points are important but obvious, others are not as obvious but important, others are obvious but irrelevant, even though they place extraordinary emphasis on them. They are looking for specific answers that do not deviate from their ideas even if they are not taken into account during the mathematical procedure. - A few notes: The recruiters are looking for specific answers in places in which they are not as important as they make them seem. Based on my conversations, I am afraid they are not very knowledgeable on the underlying processes of certain modelling procedures and seem to get caught up on stories that models do not consider during implementation. In any case, you may not advance if you do not use a specific method they have in mind, even if those details are irrelevant. Key takeaway: Just tell them what they want to hear, even if it is irrelevant.