A series of very specific questions about particular tech areas, including some red flags (what do you do if unit tests are taking 40 minutes) which perhaps give a clue as to the internal workings. No real questions about experience or interaction with answers except the usual "what was your biggest work challenge" at the end. Despite not getting the job it also feels like something of a lucky escape if all the hiring is done this way, as this kind of approach inevitably ends up with people who can explain what every acronym stands for while not actually being able to write decent code. Good luck!