No time to ask questions, interruptions, no role description. Overall the worst interview experience. First interviewer run away after asking questions with just "I have to go". Second simple coding task with all interruptions took to solve 15 minutes. After that they decide to end interview.

Contacted by a recruiter whom I had never spoken over the phone. He setup a phone call with their tech lead, a very nice guy. After that, they set up an on-site. Typical coding and general questions about your background. The CTO is a very knowledgable person who used to work at the Hololens. I guess he mistaken me with another candidate who is supposed to have in-deep knowledge on video encoder&decoder. Anyway, I enjoy the experience and learned something new from the CTO. No matter what the outcome is. I wish you all the best!!!