I interviewed for Bloomberg a week ago for one of their team, and went through an extensive process.
Recuriter Phone Screen : Some questions about current role and tech stack
Phone Interview :
Virtual onsite:
Tech round 1 : 2 questions were asked
Tech round 2 : Design round -> Similar to Twitter Feeds/ Facebook Feeds.
Tech round 3: Design round -> API Rate limiter
Recuriter round : same as first one with some beahvioural questions.
Manager round : Regarding current experience and deep diving into the projects done.