The process took a few weeks. Phone screen with a team leader who really seemed to like me. He gave me a heads up that the next interview would contain quantitative questions (math oriented brain teasers, essentially). I put many many hours into preparing and was able to breeze through 4 out of the 5 questions in the next interview (with someone I could barely understand on the phone and who seemed completely uninterested in me as a person). Apparently missing a single silly math problem was enough to weed me out completely. But hey, if you're Riot- I guess you have that power! I would have loved to work for Riot but this process has seriously put a sour taste in my mouth from the way they approach valuing talent.