Had a phone screen with a recruiter before the technical phone screen. Technical phone screen was straight forward, basically asked how to parse information out of a stream and return sorted results with the smallest time complexity. Then got asked for an onsite, which was pretty long. Had 6 different interviewers, including a video chat with a coderpad. From what I hear Twitch does two types of interviews, either build focused or algorithm focus. I had a build focused interview. Two of the interviews were behavioral ("tell me about a time when...") and product focused (mostly role playing, somewhat anecdotal). The other four started from the resume and migrated to coding based questions, three of which I was required to write code solutions. I heard results two days after the interview.