I uploaded my CV on google's carrer website for that specific position. More than one month after I was contacted by phone to send an email with my CV and answer to 4 questions (dealing with my personal value, as a professional as a possible google employee). A new phone call was scheduled. This phone call took 15 minutes more or less and it went as any other regular interview. After that I was told that I would be contacted in the following weeks. A month or so after I received an email saying that they liked my profile, although at the moment they don't need my competencies but that they would keep me in their recruitment database for the next 6 months.