Bloomberg LP

Bloomberg has its head screwed on internally and treats the development department as a core department, not a cost center.

Teams are quite regimented, but there is opportunity for internal transfers.

Instead of a Christmas party, Bloomberg holds an enormous summer party in the park, families invited, which I found a nice way of handling things.

The grad training program is excellent, if extremely hard work.

A serious case of "Not Invented Here"; you will often be working with old technologies or internal stacks. At least they are generally of decent quality.

The London office felt a bit marginalized by New York.

Don't expect to get financial experience. Financial news is not the same as finance, and developers are well isolated from business concerns anyway.

There have got to be better ways of ensuring software consistency rather than by locking down what tools developers can work with. Your overheads for developing anything have to be enormous compared with more conventional technology decisions.