After applying online, the recruiter contacted me for a 30 min screening call. After that, they sent me an assignment to complete within 48 hours and send back to them. The assignment was divided in two part; the first asked me to do some analysis on a dataset they provided and the second one asked me to write some SQL queries. The recruiter said that it would only take "a few hours" but just the first part ended up taking an entire day, partly because of the peculiar format of the data, partly because it was "purposely open ended" and it could be completed in many ways given the overly generic prompt. After sending the assignment they replied after a couple of days saying the the answers were not what they were looking for and gave no additional feedback or explanation