Applied online, and got an email a few weeks later asking to set up a phone interview. Phone interview was a basic interview, with some technical computer-science related questions (though no written code). They wanted you to know about the programming languages that you claimed to know, especially how they worked behind the scenes. After the interview, got an email from the recruiter to set up an on-site interview in San Francisco. I was the only one there. In terms of company culture, the place really feels "Facebook-esque". There's a lot of free space and free food, and the dress code is casual. It's definitely a laid-back internet company. There was an hour long coding challenge, and then a few interviews with different team leads. I received an offer within a week - they were very fast.