I contacted the recruiter. I finally got a call from HR, later I was then interview by phone. Afterwards I went for a 45 min presentation of my latest work followed by a couple of short interviews. A few days later I had the on site interview, full day schedule, every 45 min a different person would come to a room and ask questions.

First was a brief prescreen phone interview with internal recruiter. Provided some additional information about the position. Asked some questions surrounding general experience and willingness and interest to work within the environment described and work conditions. The next round is a 45min phone interview with a senior engineer. She asked about my position related project experience and some follow up questions about them. The last round is a group interview started with a presentation of my previous project. After the presentation is 5 one by one interview. They asked project related questions and some questions about signal processing, deep learning and modeling. All interviewers are very friendly and helpful. I got a better understanding about the working enviroment and projects I'm going to work on after the interview.