Senior Scientific Associate

For 75 years, Charles River employees have worked together to assist in the discovery, development and safe manufacture of new drug therapies. When you join our family, you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences, finance, IT, sales or another area, your skills will play an important role in the work we perform.

In return, we’ll help you build a career that you can feel passionate about.

As a Senior Scientific Associate
, you will function as an independent Study Director responsible for leading pre-clinical toxicology and safety assessment studies of basic complexity. You will collaborate cross-functionally and communicate directly with our clients, serving as an important point of coordination throughout the study lifecycle.

This position provides an opportunity to expand scientific, operational, and client-facing experience while building the skills necessary to lead increasingly complex toxicology studies and progress within the Research Scientist/Study Director career path.

• Oversee preclinical toxicology and safety assessment studies of basic complexity.
• Oversee study conduct from protocol development through final reporting, ensuring studies are executed in accordance with applicable regulatory requirements and Good Laboratory Practice (GLP) standards.
• Design, review, and maintain study plans, amendments, schedules, and other study-related documentation.
• Coordinate study activities across scientific, veterinary, laboratory, and operational teams to ensure successful study execution.
• Interpret study data and contribute to the preparation, review, and delivery of scientific reports.
• Serve as a point of contact for clients, participating in study-related meetings, teleconferences, site visits, and ongoing communications.
• Develop a strong understanding of study management, study budgets, and the operational factors that influence successful study delivery. Collaborate with experienced Toxicology leaders to develop the scientific, operational, and client-facing skills required for increasingly complex Study Director responsibilities.
• Interact closely with Quality Assurance, veterinary, and technical teams while building expertise in regulatory compliance, animal welfare, and study oversight processes.
• Contribute to departmental initiatives, continuous improvement efforts, and the ongoing growth of the Toxicology organization.

• Bachelor's degree in Toxicology, Biology, Pharmacology, Animal Science, Veterinary Science, Life Sciences, or related scientific discipline.
• Minimum of 5 years of relevant experience, or an equivalent combination of education and experience.
• Experience working in a regulated scientific, laboratory, research, or preclinical environment.
• Strong organizational, communication, and collaboration skills.
• Demonstrated ability to manage multiple priorities and work effectively across functional teams.

• Advanced degree (MS, PhD, DVM, PharmD, or related discipline).
• Experience supporting nonclinical safety assessment, toxicology, pathology, necropsy, clinical pathology, technical operations, or related scientific programs.
• Experience working directly with Study Directors or supporting regulated studies.
• Previous leadership, team lead, supervisory, or project coordination experience.
• Experience interacting with internal stakeholders and/or external clients.

The pay range for this position is $72K-$88K annually.

Charles River is committed to helping our partners expedite their preclinical drug development with exceptional safety assessment services, state-of-the-art facilities and…