I applied online. The process took 2 months. I interviewed at Merck (West Point, PA) in Feb 2017
Interview
I applied for the position online using Merck's website. About two months after I applied I received an email from a Senior Engineer to setup a WebEx phone interview. The interview only lasted about 10 minutes and consisted primarily of behavioral questions, and questions testing how much I knew about the company.
Interview questions [1]
Question 1
If you were given the internship, what would you tell your friends at school about who Merck is and what we do?