I met an engineering manager through AngelList and was quickly scheduled for a technical phone screen. The interviewer's coding question wasn't too difficult, but he was very good at pushing you and assessing your ability to communicate.
The onsite interview was pretty standard: two whiteboard interviews, one live coding interview, and an architecture design interview. Each interview is with two engineers, which could have been intimidating, but everybody was pleasant and accommodating. The Uber ride to and from the office is a nice touch, as well.