It was pretty straight forward. You first take a test on different scenarios you'll be given in a typical work day and then you do an online interview. Both were pretty difficult. I recommend preparing yourself with typical interview questions that you give yourself around a minute to answer each to completion.
given a case study for a super day, first networking for 3 rounds with VPs in different teams (most product teams) and then present the case study, given the offer within one week, very nice people and guided me through the presentation
I applied online. The process took 4 weeks. I interviewed at Barclays in Dec 2019
Interview
Data Assessment, followed by, Situational Judgement, followed by, Video Interview, followed by, Assessment Day, followed by an Interview. Moved quickly through the process, never waiting more than 5 working days to find out what was next.