A problem to code and decode morse code to strings in plain English. The question was ok. I did run out of time and left the last part unanswered, but I think the approach was the right one. I do have the impression they payed more attention to small details instead of the solution itself. But that’s the thing. I can only guess because the feedback was horrible. I have never understood why companies don’t disclose feedback. What can be said about the technical part that causes legal issues? For me, not having feedback is a red flag. This is the first part I have never gotten one. Either that or explore at the end what could be done better. Honestly the problem wasn’t a good fit for a data engineering position. Asking those type of problems tells nothing about data engineering. It would more interesting to provide a csv file and create a problem that involved data manipulation. Read, simulate a data frame by putting the rows on case classes, find some aggregations on it, like max min, etc. That’s something a data engineer does on a daily basis. No the other kind of problem I haven’t done in years.