Phone interview, then 2 interviews at a branch office close to where I lived, then some 5 interviews in a day in the office I applied for. Interviews are technical, be prepared to solve concrete problems, may involve coding, complexity of algorithms, system design. Interviewers are more or less free to ask what they think is relevant, so one interviewer asked about concrete numbers for how long a certain algorithm would run (i.e. expected some basic knowledge about typical hardware), others wanted to know complexity of algorithms or problems in concurrency, or what the most exciting thing was that I learned. If you write about what you did prior, be prepared to answer detailed technical questions about it.