Many weeks long multi assignment process that requires great coding and problem solving skills, each assignment was usually around half an hour, except for a few at last that were one hour plus

First, you have to solve some sets of logic problems, than a standardized logic test (evolution of figures ecc) and finally few coding problems (can be solved in pseudo-code too). After all of this, it's interview time! Two interviews were behavioral, while one was about solving logic questions like the ones tackled in the initial sets of problems.