Phone interview with the recruiter in the beginning. Pretty standard behavioral interview as the recruiter just wants to make sure that you are a sane individual and have the requisite skills and competence for the job. First on-site interview is with the hiring manager and she screened me for skills to do the job. She also did most of the talking, I also interjected with comments and/or questions at the opportune times. Second interview is with the hiring manager's peers and manager. Mostly behavioral questions as they want to make sure you are a good fit with the company and that you are a team player. Got the offer letter two weeks later.