HR will call you to go over your resume and then schedule an interview date. When you arrive, then HR person will ask you the same questions they asked about your resume when you scheduled the interview. After that, you will interview with a panel that includes your potential immediate supervisor, their supervisor, and the head of the section. They ask standard questions and review your resume - again. The whole thing lasts about 30 minutes. They then walk you around the offices and say they will be in touch.