Engineering Co-Op applicants have rated the interview process at Battelle 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 70.5% positive. This is according to Glassdoor user ratings.
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This process was quick and easy. Took about two weeks and my recruiter was very transparent. The process felt effective and swift. I interviews with a team lead and an engineer.