After a brief (~1/2 hr) phone interview, I was invited to an on-site interview which lasted around 4 hours. I feel that I did well in the interview and I got a good response from those interviewing me, the manager I talked to at the end of the interview and from the HR department afterwards. Despite the positive response I was told that since I had already graduated I didn't qualify for an internship and there were no current open entry-level Software Engineer positions at the branch. Hopefully I can find a spot in the future, as Workiva seemed like a pretty neat environment to work in!