Software Eng applicants have rated the interview process at Groupon with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 52.8% positive. This is according to Glassdoor user ratings.
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I applied through college or university. I interviewed at Groupon
Interview
5-10 mins about my previous work exp. One classic DP and one classic Linked List problem. Totally 45 minutes. They were very friendly people, they guided me throughout the answer. If you are prepared for tech interviews, you can crack it. Wasn't very tough.