The interview process consisted a total of 3 rounds. The first round was a standard programming challenge on the web. This challenge was not difficult. The second round was an over the phone interview which took about an hour. This was also pretty standard for a software engineer position. The third round was 4 separate 45-minute interviews (in person and back to back). This was very difficult because programming was done on a white board and the total process took over 3 hours.