Pros
Many possibilities to develop your career, lots of challenges, notable HR improvements over the past 3 years in terms of benefits, salaries and training. Talented and diverse co-workers, smart people and direct exposure to top professors and researchers. I find it bizarre that the negative Glassdoor reviews are either: - A blatant copy/paste of a post from a blogger who obsessively denigrates Frontiers with unsubstantiated claims. The review is very unlikely to be posted by a Frontiers employee - From people who claim that the company was sold, something which is pure imagination - From people who claim to be currently working at Frontiers and post very negative reviews. It's quite amusing such people are not able to make an impact with their skills, or to find a better position elsewhere.
Cons
I agree that the company should be careful with hiring too many PhDs. Work life is very different from doctoral studies, more structured and requires people to be able to cope with deadlines and the pressure that comes with it. Some parts of the platform are quite old and slow.