Postdoctoral applicants have rated the interview process at Genentech with 4 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 68.8% positive. This is according to Glassdoor user ratings.
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Stayed on site, met the whole team, interviewed with several people, presented my own thesis research. The interviews were with people from the group I interviewed for, as well as adjacent groups.