Before speaking with me, they sent a 9 question test with an additional portion to analyze a dataset. I took the week and spent approximately 15 hours, providing responses and corresponding code. They acknowledged receipt of the test and then had no future communication. I found out weeks later that the position was filled. In my opinion, asking someone to take that much time at least deserves a response, I found the whole thing extremely unprofessional. I would recommend any data scientist avoid having their time wasted by this company.