I applied through a recruiter. The process took 2 weeks. I interviewed at Dropbox (Tokyo) in Feb 2015
Interview
Three 30 minutes interviews with different staff back to back to back. First interview was with the recruiter. The second interview was with a sales manager and involved a business pitch to sell the business of dropbox to Goldman sachs, Nike, or Disney (your choice). The last interview was with a recently employed worker. Interviewers were open and approachable.