Bloomberg Financial Software Developer interview questions

It was a online test, my advice is that don't pick Java or C++, C would be a lot easier.

The interviewer was welcoming and very knowledgeable. He presented me with a problem that his own team had been working on the year before. Without revealing anything about their own solution, he guided me through the development process and asked me questions about each road block. Topics included data structures and algorithms, caching, and scientific computation. He also asked me to code out atoi in C.