Interview with the CTO: About 1 hour, He discussed past experience from my resume. I think he was trying to know me and understand how I would be if they accepted me. 2nd interview: Coding: he gave 2 or 3 coding tasks and asked me to write working go code and asked running it from command line with inputs he was telling. Can't recall what were the tasks, but they were not difficult; He was probably trying to gauge how fluent in golang I was. 3rd interview: Lot of technical and behavioral / attribute-based questions.