Three month process, starting with application. Received a callback a month after applying. First interview with VP of HR, second with potential supervisor, one panel with potential coworkers, and one panel with potential colleagues, who didn't quite explain how their roles would interface with this one. Then, nothing. Followed up two business days after interview - nothing. Followed up again two weeks later, and finally received a rejection. Although I would have loved to work with the organization and believe they do amazing work, I was disappointed in the lack of communication, especially after four rounds of hour-long interviews.