I applied online. The process took 3 months. I interviewed at Social Lab (London, England) in Mar 2016
Interview
The interview itself was easy, but getting the interview was another story... took months to receive an interview offer and when I did have my interview I was left waiting in the foyer for almost an hour waiting to be seen due to "internal problems". It then took almost a month for them to get back to me after initially saying I would receive a response in a week.
Interview questions [1]
Question 1
What big changes do you predict in the future for the advertising industry?
I applied online. The process took 2 weeks. I interviewed at Social Lab
Interview
2 Rounds of In-Person / Skype Interview. Interviewed with this one Account Manager. She was one of the most arrogant and unprofessional people I have ever talked with. Keep in mind that Social Lab is NOT Ogilvy. Although they're a part of it, their culture and team is NOTHING like it. The only positive experience was with their HR who was actually from Ogilvy.