I applied through a recruiter. The process took 1 week. I interviewed at Bloomberg (Londres, Angleterre) in Mar 2016
Interview
First step is an 1 hour interview over the phone + hackerrank. The interviewer was extremely polite and seemed very interested in my working experience. He provided a lot of hints when I got stuck. The questions were C++ related (basic knowledge) and basic algorithm knowledge, but I failed because I wasn't prepared.
Interview questions [1]
Question 1
Spot the errors in a C++ program. Basic stuff: constant function trying to change class members, static function trying to change a non-static data member, object slicing, virtual method called in constructor.