Like others said, the interview with the CEO is mostly him explaining all good things about the company. The technical interview was conducted way better (it was done with a technical person), and it was much more demanding.

There was several interviews, mostly technical tests. Queries about how to design an application - they looked at code I had on github and asked lots of questions about decisions and design patterns used in that - how I approached the task, what it was intended for and who would be a user. Although there were many steps in process, it was done within a week or two. They move quick!