Initial phone screens consisted of general review of past projects, technologies, etc. that seemed related to the job description. Followed up with in-person interview with two different groups and two different interviewing styles. The first group was much more data structure and algorithm oriented. Big "O" questions, recursive algorithms, tree search (depth and breadth) , etc. done at the whiteboard. Professional but adversarial feel to these interviews. The second group was much more "experience" oriented. Concentrated on the what/how/why questions of previous projects. Still did some whiteboard work, but mostly for design/implementation diagrams. Professional and much less adversarial than former group. Got the feeling they were much more interested in hiring smart people that could adapt to change.