I submitted my resume online through usajobs.gov. It took several months (I think 5) but the hiring manager eventually called me. We had a very informal and casual phone interview and she said that the secretary would call to set up an interview. We set the interview for 2 weeks away and they paid to fly me from Savannah, GA to DC for that interview. The interview was actually a series of interviews and lasted from about 7:30 am until 4:00 pm with a lunch hour in there. Everyone was very nice and spent the majority of our interview time talking about life at the bureau. Most questions were about classes I had taken and programming experience. I got a phone call with my offer about 2 weeks later.