I applied directly and I was swiftly contacted by a recruiter from ASOS. We had a great opening conversation and I was moved on to the next step in the process which involved talking to a solutions architect. During this conversation we conversed about a couple of topics including my past experience, general higher level iOS questions and some questions around my though on application architecture. The next step was a take home task to do. The task was rather involved and I did not complete it all due to time constraints, however I managed to demonstrate my abilities and was then brought onsite for a more detailed interview with some of the other iOS engineers.