The process is too long, and starts with a day-time event, in which some collaborators present the company, its values and its culture, before start with the actual process, with tests for notions of mathematics and basic pattern recognition. A logic test, which was very difficult to make due to the need of keeping track of the stack of execution and then came a technical interview with one of the technical leaders, which is the best part of it, once it turns out to be a change of experiences.
Later there is a value interview, when the company tries to find out if your culture is compatible with theirs. A very complex code test is sent by e-mail. You have to choose among 3 problems to solve, but both 3 are equally difficult to solve.
At last, a time with the whole team so they can know about you, what is your style of work, and a session of pair-programming.