Received three appointments for phone interviews all set up via email, none of them very quick as far as responses. Each interview was 45 minute, the last interview that was set up was a template email sent to my address "Hello [Name] I'd like to set up an interview on [Date]"... that never turned into an interview, and I removed myself from the process because I found a job locally in the mean time (the three interviews were over the course of more than a month). The interviews were all pencil and paper problem solving and programming knowledge. It was a review of technical algorithm and data concepts from school, I would suggest anyone to review their basic programming before the interviews. I watched Stanford's free youtube videos and they helped. Focus on heaps and other data structures and try to remember computational complexity, there is a concern for what is fastest versus slowest in the questions. The interviewers were generally nice, about par for a developer interviewing a developer.