Bloomberg was the nicest company I interviewed for. I was approached through indeed and it was smooth sailing from there.
I did two rounds with 2 SWE teams, One round with an HR manager and final interview with an Engineering Manager.
SWE Round:
Round 1 (Phone ):
2 programmer watched as I programmed a very basic LC med question, with a follow up.
Round 2:
2 Programmers again watched as I did a graph traversal with memoization LC med. Follow up. Chit chat about experience.
Hiring Manager:
What do you think about the company?
Why Bloomberg?
What are you interested in? (Standard stuff)
Engineering Manager:
Deepdive into resume.
Object oriented design to design a class. LC Tagged.
One week later I got the offer. It usally takes people a lot longer but I was on a time constrain and I let them know.