I applied online. I interviewed at Groupon (Seattle, WA) in June 2014
Interview
HR responded very fast, she contacted me 10 minutes after I submitted the application. And it took me 3 three days to talk to them via phone. Never heard anything back from them after the phone interview.
Interview questions [1]
Question 1
If we do an A/B testing, how would you divide the population, like percentage-wise?