Leadership Development applicants have rated the interview process at Ecolab 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 69.2% positive. This is according to Glassdoor user ratings.
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A 30min initial call followed by 3 30min interviews. They responded to emails and set up meetings. First you talk to a current person in the program then you talk to higher ups.