I applied online. The process took 4 weeks. I interviewed at Express Scripts (Saint Louis, MO) in Aug 2016
Interview
It involved a phone screening, a phone interview with a senior developer, an in-person interview with two senior developers, and a 3 hour coding test. Interviews were mostly behavioral, but the coding test was very technical. Make sure to study!
Interview questions [1]
Question 1
Describe a challenge that you faced and how you overcame it.