I worked at National Kidney Foundation full-time (More than 3 years)
My experience at NKF overall wasn't bad. The atmosphere of the company was pretty laid back and everyone was very friendly. The environment and the people who put in good work. They truly believed in what they did and helping people.
Some of the departments were rather clique-y and sometimes different groups kept closely to themselves. Other than that it wasn't too bad working there.
Advice to Management
Pretty good overall. Hiring and promoting from within was a huge plus he company gets credit for.
I applied online. The process took 2 weeks. I interviewed at National Kidney Foundation (Washington, DC).
Submitted resume online. Called for very brief phone screening. On-site interview with my future Event Manager (immediate supervisor). All of it was appropriately professional but relaxed. I actually enjoyed it, but I usually enjoy interviews. This really was a fun one, though. The staff in place, and thus also my eventual supervisor who conducted the interview, are all fun, interesting, happy people--it is reflected in the way they interact with and interview you. I left the interview kind of wanting to be her friend. I was her friend by the time the internship ended.