I was contacted by phone a couple of weeks after applying, did a 20 minute phone screen, and then came in a week later for the in-person interview. I first had to do a proofreading test; I would guess that if you have strong enough skills to be called in for an interview, you will be able to pass the test. I had to wait a little bit to meet with the HR Rep, then a couple of team members and the manager (met with each separately, never multiple people at once). It felt a lot more like they were telling me about the position rather than interviewing me. I received an automated rejection email about a week later.. and then another one for some reason a week after that.

I initially received a call and an email from an HR contact asking that I call her for the initial screening. At the end, she invited me to come into the office for a full interview, and notified me of the proofreading task. You have to get an 80% on it (allowed two attempts) in order to continue to the next part of the interview. I don't think you really need to study for the proofreading portion. I just reviewed grammar rules the day before and passed on the test on the first try. The second portion was of the interview consisted of talking to the HR contact, an analyst, and the manager of the conflicts department separately. The interview was pretty standard. Not too difficult. Just talked about skills and things on my resume. The two conflicts people were very casual, whereas the HR person was more formal.