I met with the Director of Talent Management, Outreach & Recruitment for an informational interview first. She asked about my experience and we discussed what position at the company might be the right fit. Then, a few months later I was brought in to interview with the director and a department head before being offered the position. This seems fairly typical. The company tends to have "meet and greets" and keep people on their radar in advance of having an actual position open up. Within a few days of my interview, I received a phone call from the director to discuss the details of the offer and then received an emailed copy of the official offer letter that I had to sign and return.