Other than the standard interview questions in the behavioural rounds: 1. The case study round is actually quite fun - it really is a good test of your knowledge of their APIs and how you would go about explaining these to a client, as the two Product Specialists will stress-test your knowledge 2. One thoughtful question in my final interview was, "What is something you believe that others don't?" - This certainly threw me off at first, but it shows genuine interest on the part of the interviewer (the founder) to know you as a person.