About the role

Charles River is seeking a Senior Toxicology Study Director (Senior Research Scientist) to join our Safety Assessment team in Reno, NV. This senior role leads GLP and non-GLP in vivo toxicology studies across multiple species, providing scientific leadership, study oversight, and sponsor communications throughout programs. The position requires relocation to Reno and offers an opportunity to influence preclinical safety assessments within a collaborative, client-facing environment.

Before you apply

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Your profile is current

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Two examples you can talk through

Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.

A number in mind

What you're on now and what would make you move. We negotiate better when we know both.

Your notice period

Employers plan around it, and it's the question that stalls offers most often.

Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.

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