I was approached by a recruiter. I was then given a phone interview where I was asked a few brain teasers and then a couple of questions about myself. I then was asked to come to the Dublin, IE office for an interview. I was told that the interview would be preceded by an 'aptitude test' and on passing that, the interview with staff would begin. On reaching the office the morning of the interview, I was put in a small office and given the test paper. The questions were difficult, 90 in an hour if my memory is correct. Mostly recognising patterns and the like. These type of questions are probably all over the internet. At the conclusion of the exam, I was informed that I was 5 questions short and I was asked to leave the office.