The interview process is long, and detailed. For some people there is an exam (sometimes paid, sometimes not).
There are multiple rounds with different people, but they don't give you a good feel for what it will be like to work there.
Preguntas de entrevista [1]
Pregunta 1
You'll be asked very specific questions that are relevant to their business needs. That's because they have a unique, and difficult business with a lot of challenges that most successful operations don't have.