The whole process of evaluating candidates can be the best described as "completely random". I've already applied to Bloomberg for a similar position a year ago and was easily able to get through two rounds of technical interviews and an interview with a PM and a team lead. This time around I was turned down right after the very first technical interview. I believe it can be safely stated that according to Bloomberg this means that I got WAY WORSE over the course of the year and probably lost all of my near-decade C++ experience. The only thing for me to decide right now is if I want to apply in a year again to see how far I'll be able to get that time.