I applied through college or university. The process took 3 months. I interviewed at Ameren (Saint Louis, MO) in Feb 2021
Interview
Ameren had you complete a phone interview and then you had to go into the main headquarters and complete a technical assessment which was basic knowledge from high school. Overall a very easy process but ameren took quite awhile to get back to me.
Interview questions [1]
Question 1
Asked technical based questions around various problems.