I applied online. The process took 3 weeks. I interviewed at Bloomberg Industry Group (London, England) in Jan 2015
Interview
1 hour interview: at first some CV and previous projects chit-chat, then questions about Java Virtual Machine, Garbage collector, Java OOP concepts , if java was compiled or interpreted, what makes Bloomberg different than its competitors and why do u want to be an intern there. The interviewer was really friendly but he asked many questions about the previous topics.
Interview questions [1]
Question 1
1- Generate prime divisors for a given integer.
2- Get Fibonacci series