First stage interview was in person at the London office. About 90 minutes to complete an Excel examination which progressed from easy to hard (ending at a pivot table) and a general finance knowledge test. Those were both fine, though I do wish I had brushed up on my vlookup before going, that was my bad. After that, there was a 20-30 minute interview with someone from HR. She was friendly and it was a standard behavioural interview.