I had a phone-interview with a hiring representative. They called back a few weeks later for an interview at their Denver location. It was a panel interview with two individuals asking questions regarding hedging strategies, brain-teasers, (no behavioral questions) etc. Before going to the Interview, I took an accuracy and a math examination (no calculator, math word problems, taking averages). Overall, I liked the culture, values, atmosphere of the office; people were friendly, relax atmosphere (very casual attire... suit not necessary), open space, low-power distance organization etc.

Online application lead to a 45minute phone interview consisting of basic competency questions. Successful candidates are asked to attend an interview day consisting of a maths test (basic data analysis), a verbal logic test, and two interviews with staff. Interviews seemed like there were designed more to get to know your personality rather than testing technical knowledge. Overall a good experience. UK office