I applied through university. The process took 2 months. I interviewed at Epic in Oct 2017
Interview
You have a phone interview, then a skills assessment, and onsite interview. The phone interview is mostly behavioral, and generally straightforward. You talk with an actual software developer about Epic.
Then the skills assessment consists of a few tricky math and logic questions, where they want to see how many you get in just 2 minutes, and four programming questions. The programming questions were quite tricky, and you do need to write actual code. You get no compiler and/or test cases to tell you whether or not your code works. You get unlimited time for the programming questions, but they do consider speed in their evaluation.
I did not get an onsite interview invitation, and was very annoyed. I previously took this same type of assessment when applying for TS a few years ago, really had difficulty solving the questions then, but got an offer. After declining the offer at that time, I have since improved my programming skills, and felt much more confident about the assessment this time, only to get a rejection.
Medium level leetcode and then a very basic system design question as a final round interview. Overall, smooth and simple process. Only one technical and it was the first one.
Interview questions [1]
Question 1
How would you design a system to minimize wait time at a health care center?
First round is a thirty minute phone call with one of their developers. The other part of the first round is a three hour exam with IQ test style logic questions and coding questions.
[OA] OA was fair. Programming part are leetcode easy and easy-mediums, straightforward simulation, backtracking, dfs, strings, etc. No DP/graphs but ymmv.
[Final interview] (Case Study) I think the interviewer came up with their own prompt. It's mostly discussion-based, with a virtual white board. It's not too technical. I'm guessing its testing your communication/logical reasoning than system design skills. (Pair programming) 1 question, same format as the OA on the same platform, leetcode easy.
[Overall] Technical difficulty isn't bad. Interviewers who are current software devs seemed friendly. Had a good experience, yet got rejected.