I applied through university. The process took 2 weeks. I interviewed at Wayfair in Mar 2014
Interview
Asked basic questions, had a ~15 question quiz with two IT employees and then had a 20 minute interview with the head of IT who described the systems that they use and what you would be required to do. Both interviews showed a lot of happiness and was less formal than expected.
Interview questions [1]
Question 1
Some file transfer questions and some difficult and vague questions about the systems they use