I applied through university. The process took 3 weeks. I interviewed at National Instruments (Austin, TX) in Feb 2015
Interview
Started with digital logic review questions and followed by a lot of personality quiz questions. Questions were easy even for an undergrad senior, they also discussed a lot about the projects I have done. Interview experience was good. They were respectful.
Interview questions [1]
Question 1
Basic logic gates, solve a problem using state machine, implement it with flip-flops.