I applied online. The process took 1 day. I interviewed at Guernica Magazine (New York, NY) in Jan 2015
Interview
very nice conversation with an editor about career goals, favorite publications/writers, favorite types of writing, what your skills and availability are, what projects you're currently working on. This was a very enjoyable and interview process--more similar to a conversation between writers/editors than anything formal
Interview questions [1]
Question 1
favorite publications, favorite writers, purpose, what you're currently working on