first round online video conference, interviewer looks friendly, and no too tough question, everything went smoothly. Second round online coding test, was a bit nervous, got one question wrong at least. Never heard back from them any more.

Coding test + IQ style test. After that, scheduled an entire half day of interview. Only had one interview before being rejected. Interviewer was not the best, kept asking "and how can you improve this code" without even leading to what he might want to answer about. At one stage I had suggested multithreading, and he said dont worry about that, and then later wanted that as an answer.