Applied online via a Craigslist ad. I didn't initially hear back and when I followed up they apologized for the delay and asked for a phone interview. The phone interview was fairly standard, lasting approximately 20 minutes, and ended politely. They emailed me the next day saying they wanted an in-person interview. The interview was about two-and-a-half hours, with the editorial director I spoke with on the phone and an executive. The interview was friendly, but formal, and included an on-the-spot writing test, an editing test, and some kind of LSAT-like critical thinking test that was long and awful and you were given very little time for (nor, it seemed, expected to finish).
The interview itself wasn't particularly hard, just felt a bit long, though professional. They emailed me two weeks later to let me know that they were looking for someone with a bit more experience and could speak and write in multiple languages, the latter of which was never brought up--not in the ad for the job nor at either interview, or in any of our correspondence. They had requested I leave my portfolio with them and when I asked if they could mail it back to me, as I worked remotely and had a lot of trouble quietly acquiring those materials, and they did not. I had to pick up the portfolio in person.