3M Software Developer applicants have rated the interview process at 3M with 2 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 69.1% positive. This is according to Glassdoor user ratings.
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Overall the interview was great. Simple behavior (get to know you) questions as well as some technical questions that go over the basics of Data Structures and SQL. That's pretty much it.