Epic Software Developer interview questions

Received an email request a phone interview as well as a proctored technical test online. I talked with the interviewer for about an hour, he was a developer for Epic. The hiring manager setup the interview, but it was an actual developer that conducted it.

I applied to Epic and around a week later an HR rep scheduled an interview between myself and one of their developers. I was also asked to complete a Rembrandt profile which took about 20 minutes and take a skills assessment via ProctorU. I found the programming questions to be quite challenging and they took about 2.5 hours.