I applied through an employee referral. I interviewed at Fiserv
Interview
Phone interview to make sure I wasn't BS'ing my technical skills. Then one-hour onsite interview with a few senior people to talk tech and see if I would be a good fit. They were super cool about answering questions and making sure Fiserv would be a good fit.
Interview questions [1]
Question 1
Talked a lot about what technologies are interesting, why they are interesting, previous project experience.