I applied through an employee referral. The process took 2 months. I interviewed at MediaMath (London, England) in Feb 2015
Interview
The process consisted of an initial telephone conversation with HR, followed by some online interviews with members of staff in the US. There were then short face to face interviews in the London office, including 2 presentations.
The interviews were quite relaxed and required demonstrations of skills and experiences relating to the role.
Interview questions [1]
Question 1
How would you explain a pivot table to a 5 year old?