The process consists of online code challenge, phone screen, full-day onsite. The process can move really quickly, but it was actually me who was slowing it down. Recruiters are prompt to respond and their communications are very concise and efficient. For all interviews, a candidate is expected to write code that actually compiles and works in a timely fashion, so speediness and accuracy are both important. There is a designated building only for interviews, so it is hard to feel the actual culture at Snapchat, but all interviewers seemed like kick-ass developers and pretty easy going. Also, they seemed very passionate about the company and the work they do. One of the interviewers described Snapchat as a rocket ship at this stage, which I believe many people (including me) can agree. The culture in the area around Snapchat (Venice beach) is quite interesting though.