Data Analytics applicants have rated the interview process at Vanguard 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 68.3% positive. This is according to Glassdoor user ratings.
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Not bad. Depends on team that you are being interviewed for but depends mostly on sql. If possible some teams look for python skills too but be sure to check with the recruiter one what the interview is expected to be on.