I applied online. The process took 4 weeks. I interviewed at bp (Budapest) in Apr 2017
Interview
2-3 rounds are required. I only succeeded the first one as I got a negative answer. I had to wait a loooot of time till I got their feedback, I even made some phone calls.
Interview questions [1]
Question 1
Competence Based Interview. E.g.: mention a situation when you had to deal with an angry customer.