Applied using USA Jobs. I was contacted by deputy director of the Office of Energy Market Regulation East shortly after that by phone. Had two phone interviews. Then, I was flown to Washington, DC for an in-person interview with my future manager, deputy and office director. I was offered a position with a week.

Started with an informational interview. That was followed up by a phone interview with two people. Finally, I was invited in for a block of in-person interviews. Questions were standard with nothing meant to catch you off guard. They will want to know what technical skills you bring to the table and about previous analytical experience.