I applied online. The process took 3 months. I interviewed at Epic (Verona, WI) in May 2014
Interview
There were several steps to this interview process. First apply online with your resume/etc. via epic.com. Then you will get a phone screening if they are interested, which is pretty informal and fun. You get to ask about the company, discuss the role you applied for further and whether or not a different role might be better. If that goes well, you take two exams online (one of which is proctored and much more difficult than the other, which is a personality test). This is probably the most common part where people drop off. The exam isn't impossible, but they expect very good scores I think. The coding/logic portions are particularly challenging. If you do well enough on the tests, you'll end up doing an on-site interview where you meet a ton of employees and work with other potential hires. You need to make a good impression and show your creativity when confronted with open-ended questions. It feels informal, but you need to be sharp. That was the last step for me before getting an offer.
It's tough for me to gauge whether the process was difficult or not. I didn't have any problems moving forward, but I know a ton of people who didn't get anywhere with it. The process is definitely kind of long though.
I applied online. The process took 4 weeks. I interviewed at Epic (Verona, WI) in Mar 2013
Interview
Interesting, easy interview. Took a whole day, exams are tedious, but the interview itself is mostly made up of questions you already expect and know how to answer. Mostly a group experience; things like being handed a pen and told to approach quality assurance on it.
I applied through an employee referral. The process took 3 weeks. I interviewed at Epic in Nov 2012
Interview
Very quick and efficient process. Also open to interviewing for multiple roles and finding the best fit for you. Overall a good experience and I interacted with a lot of helpful people invested in making sure Epic was the right place for me.