The application/interview process was pretty straightforward. I submitted a resume and cover letter through USAJobs (I think there was some supplemental documentation, too, and that can be found on the SEC's site; USAJobs lists some of the requirements, but you should be careful because some are spelled out far more clearly on the SEC's site), and a few weeks later, I received an e-mail requesting an interview. I had one behavioral interview that lasted about 30 minutes, and heard back pretty shortly thereafter with an offer.