Bloomberg reviews

Management has unrealistic expectations. Lack of innovation, incompetent management, not receiving deserved recognition, preferential treatment, lack of collaboration between departments,

Like the other programmers pointed out, it is a dead end for senior developers. Bloomberg uses proprietary technologies. Your skills would become obsolete and irrelevant to other companies in 2~3 years. If you plan to just get some experience and add a line in your resume, this place is definitely a good place to start. If you have plan to stay for long term, think again. Bloomberg used to offer generous compensation packages and take care of loyal employees. But since Mike left for New York City Hall, the culture has changed. Loyalty is less important than profitability. If you get stuck for more than 5 years and still don't get chance to move up the ladders, then you should definitely consider moving to other companies before it becomes too late for you to brush up your fading skills and memory from college.