I applied online. The process took 2 weeks. I interviewed at Automated Trading Desk LLC (Mount Pleasant, SC) in May 2012
Interview
Applied online via ATD website. Contacted a week or so later and brought in to be interviewed. Met with employees then asked to take an hour long test. Test consisted of several logic puzzles and probability/statistics-type questions. After the test, met with employees to discuss the results of the test. Whole process took a few hours.
Interview questions [1]
Question 1
You have two pitchers: a 5 gallon and a 3 gallon. How would you use the pitchers to get exactly 4 gallons of water?