My understanding was that there were four rounds of interviews: 1) hr screener, 2) manager, 3) director, and 4) executive. There was an assessment between manager and director interviews, but it was fairly easy. I knew fairly early in the process that it wasn't a good match, lots of hints of "building the plane while flying." Made it to the third interview but I think then it was apparent it wasn't a good match, was rejected shortly after. Overall, everyone was very nice and the recruitment process was quick (for a nonprofit).