Pros
Good salary Good benefits beautiful office in the center of NYC very good summer corporate party
Cons
Bloomberg's motto is: Get Things Done. You should develop your application as fast as possible. Nobody asks you about design. Nobody asks you to write any documentation. Just get things done. As the result Bloomberg has tones of spontaneously designed and not documented code. Most likely you will be hired to support this code. You will have to fix bugs and improve code which should be redesigned 10 years ago. But nobody will let you redesign it. Just get things done and fix the bug as fast as possible. Every day you will get new tickets to fix. This is the way how you will learn your project. The only way you could understand what to do is to ask your mentor. You will be very lucky if your mentor be able to explain you what you should do. He just has no time because he has a lot of tickets too. Bloomberg is chaos. If you like chaos this place is just for you. BTW please ready book "Bloomberg by Bloomberg"