I applied through a recruiter. The process took 5 days. I interviewed at Fiserv (Houston, TX) in May 2013
Interview
Don't worry too much about what they ask, they have a difficult time hiring people. Demand more money and more vacation than they offer, they need you more than you need them. They want you to believe they are a great company and a good place to work, but the reality is that it is a bad work environment all the way around.
Interview questions [1]
Question 1
Again, don't worry too much about it, they are in dire need of warm bodies.