The first interview (the assessment day) is essentially as has been described below, following which there is an interim stage - an online questionnaire with four questions. The final stage comprised an Excel task, followed by four speed dating style interviews which were 10 minutes each. The Excel task is straightforward if you have a basic knowledge of Excel, and is not worth stressing about. Most of the interviewers were lovely, particularly the COO, although their head of tech (CTO) was a most peculiar chap who wasn't very comfortable with social interactions. Their HR and recruitment team was a mixed bag - I got the sense that, as Cambridge graduates, this may not have been the career they were dreaming of. There is much that is fantastic and intoxicating about the Brainlabs culture, in particular their attitude towards addressing gender imbalance (conscious and unconscious) in the workplace. At times, however, I felt that there was a gauche Oxbridge whiff about the place which was very off-putting, to the extent that I felt quite strongly after the final interview that I didn't want to work there. This sense of entitlement, which has no doubt helped them to excel in the Paid Media space, felt wildly misplaced at the interview level. They do not give feedback, which a shame and means that you leave the interview process with nothing constructive to show for your efforts. It is also very strange that this should be the case, given that the company consists mostly of graduates, who ought to recognise how invaluable interview feedback is to other graduates. The tone of their rejection email is wrong, and misses its mark by a long way - my suggestion is that, at a bare minimum, this must be revised and redrafted asap.