I applied by sending my CV and covering letter. Response was very quick - I was asked to solve a case study and prepare a 10 min ppt presentation within a week (present via Skype). We first talked a couple of minutes about my background. I then went through my slides. The conversation was friendly and professional. There were some more detailed questions about my approach in solving the case study. I was afterwards invited to have personal interviews at the office which took place a week later. I had two separate interviews with senior staff both lasting about 1 hour. They asked a mixture of HR, personal, and "CV" questions. Communication and offer submission were afterwards very quick. The process was all in all a difficult, but good and professional experience.