One screening phone call with HR, one 30-minute telephone interview, one 1.5-2-hour in-person interview with prospective boss and coworkers, a final interview with HR and prospective boss. HR department was top notch - at each step of the process, they take special care not to leave a prospective applicant hanging for more than a week. And they never failed to respond promptly and courteously to my email inquiries. User Operations team seemed like they would have been awesome to work with. I didn't make it to the final interview.