There were 2X30 interviews for the first round. After two weeks, another 2x30 interviews for the final round + excel test+ written test. I would say most are situational/behav questions. Good luck!
I applied online. I interviewed at BlackRock (London, England) in Nov 2024
Interview
Had 2 30 minute interviews with a mix of behavioural and technical questions. If you pass you move to the next stage which is an additional 30 minute interview either the same day or next day.