The first interview was a quick Skype call with one of their engineers. The questions asked where technical and I had to write code. The second stage was an on-site interview focused on pair-programming with two of their engineers. I had to develop a front-end app using a framework of my preference.

First they called me for around 45minutes (30mins where only coding) The interviewer was very polite and explained all my questions. I was expecting more people in the call. Coding was easy for the first 2 questions and then the others ones were harder about algorithms and optimizing my code.