Epic Software Engineer interview questions

Got an email from HR saying she found my resume online. First round is a phone interview, questioning by a software developer. Most of the question are coding related, data structure, algorithms, which I was not good at. Then online test, including coding, math, new language. That part was needed to be done realtime to a third-party test website. The whole process took 2+ hours under supervising of someone. It was fun...

First a telephone interview, no coding questions. a small technical question.How to sort an almost sorted array of numbers. Then an online test. Lots of dynamic programming, most questions can be found on careercup. Next, is an onsite interview, a project presentation+a case study. For case study part, you will be asked to design a system to handle a lot of different cases. It's an open minded question, you can focus on any part of the system as you like. I get a really good offer from them but I am still interviewing with other companies. Not decided yet.