I applied online. The process took 2 months. I interviewed at Lutron Electronics (Coopersburg, PA) in Nov 2012
Interview
Submitted application on line. Waited for a month for reply. First a phone screening. If you get pass it, there will be a on site interview at Lutron headquarters in Coopersburg, PA.
Interview questions [1]
Question 1
Design a DC to DC voltage converter and compare the advantages and disadvantages between different solutions.