The first step is to go into the office and take an assessment. Once you have completed this, they will either put you in a room or let you go. If they let you go, you did not pass. If you make it to interviews then you will meet with a recruiter, then they will place you in a department. Then that department will be notified to come interview you.

Applied online and received an email with a link to an online aptitude test. Took about 2 hours to complete (vocab, alpha-sequence, graphical sequence and math). Post this, I received an email inviting me to an at-location interview. When I arrived, I was ushered into a testing room to do another aptitude test (similar questions to the first) and then had a short skype interview with a recruiter.