I applied through university. The process took 4 weeks. I interviewed at Nielsen (Ciudad de Mexico) in Nov 2011
Interview
HR recuits the candidates based on the description that each area share, they make an interview to screen and assure that the profile fits with the requierements, then a test is done depending on the area an assessment is made and after the candidate pass the test then it goes to the interviews with the members of the area in which is planning to enter