Phone scree followed by onsite interview. The onsite interview consisted of of a two hour technical interview, forty five min management interview, and half hour HR interview. Technical interview focused on signal processing, linear algebra, and programming questions. The management interview consisted of standard questions like what are your strengths and weaknesses, etc. The HR interview was about when can you start, what is your expected salary, etc. Overall, the experience was a bit wierd. I spent nine hours in the company and interviewed for just 3 hrs and 15 min. Rest of the time they spent talking about the company!