I applied online via their Jobs site. In a few days, I got an email asking me if I would like to be interviewed. Following a phone call with just some very basic background questions, I was flown to the NetApp campus at Sunnyvale. The environment seemed great -- everyone was nice and friendly. I was applying for a low-level software position (something like OS, drivers, hardware interaction etc.). They tested me on some fairly standard questions on kernel development (as in creating the kernel, not developing the created kernel) and data structures. Some of the interviewers were also interested in quizzing me on some brain-teasers, like if you have x-number of balls and y-number of scales, what is the shortest way of finding the heaviest ball and what is the run-time of an application finding the ball using method. There were also of course a few behavioral questions, like "Tell me about a time you worked on a team."