RWE Scientist applicants have rated the interview process at Parexel 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 59.6% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Thorough with a presentation of a case study. Several interview steps. I have been through a few interviews with Parexel, and those are all multistep from 2 to 4 stages