Very lengthy. There are a total of three interviews. The first is a screening interview conducted over the phone; about 30 minutes. This is a brief review of the job description and your resume. The second is a full phone interview; about an hour. There are lots of situational/behavioral questions and reasons why you left previous employers. Lastly is a face to face interview. Mine was conducted in an airport restaurant. You will meet with your hiring manager, they will ask you more behavioral questions and have you give them a mock presentation on what they told you about the program. This took about 90 minutes. From application to hiring is about a two month process. Once they conduct a background, employment, and education investigation you have to take a drug test.