Pros
Bloomberg is pretty chill as far as fintech goes. Best strategy is to put in the hard work for the first two years and learn their home-grown ecosystem. You mileage may vary, but once I've earned my status, I'd get away with ~20 hours of work a week
Cons
Bloomberg is very, very "cliequey" if thats a word. They pride themselves on their FST bootcamp and you'll quickly learn that most of your senior colleagues have grown up within the company with the same people they did the bootcamp with. Additionally, note the power dynamics of people on the US work visa. Many of them need to bite their tongue for years while they wait for a green card. Managers get used to quiet people and kinda of freak out, once a rare disagreable employee tells them "no". tl;dr You'll need to play careful political game if you enter Bbg as a senior tech hire to succeed. Tech stack is home grown and kind of peculiar. But the chill pace of the company makes up for it.