The hiring and interview process is strict. The company is short on people, but doesn't compromise on their hires. That's good, because there is no empire-building tendency yet. They like to focus on "design" which gets a bit annoying. They look for whether you ask them the "right" questions, so I failed my first interview, where I began designing the algorithm. I later realized that the solution is somewhat immaterial so long as you ask a lot of key questions about the system - remember the questions are for the interviewer to know that you thought about something, so even if you know the answer, ask.