I was referred by a friend for a sales position at the Dublin offices. The process began with a a friendly conversation with a HR rep. The second interview was a sales pitch that lasted 20 minutes on the phone - a good knowledge of Adwords is required for this. Finally the onsite interview consisted of three different interviews, first with the manager, second with someone on the team and finally a HR manager. The final interview is by far the toughest and they really try to grind you down, stay firm and confident is all I can say!