The phone call interview was nerve racking but it was conducted very calmly. I enjoyed my conversation with the hiring manager and he gave me much more useful information about the job.

1-to-1 interviews with multiple technical person and presentation on my thesis describing the thesis problem, key results, and findings. Couple of the 1 to 1 interviews were behavioral asking about thought provoking questions rather than technical questions. There were no right or wrong answers for these, just how you approach the problems and try to solve it.