I applied through college or university. The process took 3 weeks. I interviewed at Apple (Cupertino, CA) in Mar 2012
Interview
I had three interviews, the first one was to see if knew basic Objective-C and to hear a little about my background. The second interview was with my future mentor, he asked me about my views of Apple and some technical Objective-C/iOS dev questions. My future mentor then had a entry level engineer interview me to verify that I knew as much about iOS dev as i claimed to know.
About a week after my last interview I received an email stating I got the position.