I received an e-mail and was invited to take a "numeracy test," which was mostly basic math (algebra, probability, etc.). There were more questions than were possible to finish in the allotted time, but the problems weren't too difficult. A few days later, I received an invitation for a first interview over the phone. I scheduled it online by choosing a time on a predetermined date. The phone interview was pleasant and lasted about 30 minutes. The first five minutes were resume talk, then the remainder was a case interview. The consultant I spoke with called back a few days later to say I had not advanced to the next round of interviews and to give feedback. Still, overall a positive experience.