I applied online. The process took 6 weeks. I interviewed at EF (Education First) (Lucerne) in Dec 2015
Interview
Series of phone interviews with increasingly important managers.
Initially just about CV, then including a case study and finally random questions testing creativity, company knowledge and general culture.
Assessment center (2 days in Lucerne)
Group exercises (negotiation, allocation, survival), testing (finance and invoice) and individual interviews with different senior managers.
Interview questions [1]
Question 1
Mix of "by the book" questions about life experience, case studies and trickier questions about economics, politics, and real-life scenarios regarding the company.