Had to take 3 interviews. First was a written test of aprox. 60 minutes on this topics: Linux, Programming and Python. Linux quiestions were something like this: 1. How to see kernel messages. 2. something using watch 3. something using grep The other i cannot remember Second was one with some technical questions like: How Dijkstra's algorithms works, dynamically alloc memory of a matrix. Third was to find some numbers in an array that meet a specific rule and implement something like quicksort.