Unreal Engine Developer applicants have rated the interview process at Proxify 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 52.9% positive. This is according to Glassdoor user ratings.
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There was a C++ coding part and then a technical interview about game development and development in general. The C++ coding part was about algorithms but not necessarily related to game development.