First interview was with a recruiter who did a great job of creating interest in the role and company and did basic assessment of my background. Second round started with an office tour and then I was interviewed for two hours by two Android engineers, which was a fairly negative experience - not because there was anything wrong with the company or interviewers, but I felt like the questions were more about showing who had the most arcane knowledge, rather than asking anything you can evaluate. I was asked questions on data structures and then given a coding challenge (which seems to have been to assess system design, nothing algorithmic) Their questions did a great job at showing what they knew (their generic data structure knowledge was impressive) but also showed gaps in some important android knowledge (eg. how memory and the gc algorithm works, which thread services run in, that there is a difference between process and thread) and in how kotlin bytecode is generated and uses static structures (both developers work in kotlin). I only mention these gaps as the interviewers seemed to doubt or reject some of my answers based on this. I felt like only a couple of their questions did much to probe what I actually knew