Investment Operations Analyst applicants have rated the interview process at BlackRock 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 60.4% positive. This is according to Glassdoor user ratings.
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The interview process consisted of five different Interview rounds that last thirty minutes each with members of various operations groups. The questions I was asked varied from personal, finance and tech related.