First stage of the process is a very easy hackerrank, then a recruiter call - basically asks you why Yelp and besides that mostly speaks to himself. Next stage is a phone interview with a small system design element, and then coding, the question itself was very easy but I found the interviewer disengaged and inexperienced on both questions - he was only a year out of Uni himself. I wasted time explaining my thought process and only managed 2/3 of the versions of the question he asked. He also failed to explain what he wanted which wasted some time.