I applied online. The process took 2 weeks. I interviewed at Pinterest (San Francisco, CA) in Jan 2016
Interview
Extremely friendly people. Felt like they really wanted to know who you are as a person, teammate, a on-the-spot thinker, and a coder. Even when they notify you about the interview details, they are extremely open and friendly.
Interview questions [1]
Question 1
How do you determine if a string is the same back and front? (Coding question) Example: mom