I interviewed with 3 different people via phone and then a one-on-one with a Regional Manager. An initial phone interview (non-technical) and then two technical interviews with two different technical people. I did well on the phone interviews and when I had a teleconference call with the Regional Manager for about an hour, I felt that he was expecting someone younger and I received an email indicating that it may take several months before an appropriate position was available and that they would keep in touch. I never heard from them again. I saw the same position posted the next day again. They also use a background company that asks questions that would definitely indicate your age (such as date of college graduation, date of birth, etc.) which I don't answer prior to an offer since a company might have a propensity to discriminate against certain protected classes. I suspect that they might be one of these types of companies.