Student Worker applicants have rated the interview process at Mars with 4 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 61.4% positive. This is according to Glassdoor user ratings.
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I interviewed at Mars (Copenhagen, Capital Region)
Interview
The interview that I had consisted of in person questions, which was followed by some time to complete a case independently. After this, there was some time to present the case outcomes.