Senior Machine Learning Engineer applicants have rated the interview process at LinkedIn 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 54% positive. This is according to Glassdoor user ratings.
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Applied w/o referral, was cobtacted by recruiter. After recruiter phone screen next is 1 hour technical phone screen with leetcode style problem and followups, like add binary search to solution.