I applied in-person. The process took 1+ week. I interviewed at RTI International (Research Triangle Park, NC) in Oct 2009
Interview
Very strictly by-the-book. Everything totally honest and legal. Applicant is interviewed by two or three small groups, because the work is contract-based and exact responsibilities vary from year to year.
Interview questions [1]
Question 1
Generally questions are not very difficult. Applicants may be asked to bring samples of work, including software, writing, etc., that they authored.