Three interviews. First pretty laidback, asked a couple off-the-cuff math questions that are easy with paper but requires quick thinking if you're not math-enabled. Included a timed 120 questions computer test to test pattern, word association, and math ability. Second was with two people (first wasn't) Was generally friendly, but there seemed to be a couple mildly hostile probing that might have been meant to test reactions. Standard abstract thinking math questions to see how you arrived at a rough estimate of a figure. Explored my resume (review it!). Also had a hour long pricing test at the end the had you utilize excel and word to solve a noise-laden pricing problem.