Senior Toxicologist

Senior Toxicologist – Job Description

Job Title:

Senior Toxicologist

Department:
Toxicology / Research & Development / Product Safety

Reports To:

Director of Toxicology or Head of Regulatory Affairs

Location:

Philladelphia, PA

Employment Type:

Full-time

We are seeking an experienced and detail-oriented Senior Toxicologist to lead toxicological risk assessments, safety evaluations, and regulatory compliance activities for chemicals, pharmaceuticals, consumer products, or environmental substances. The ideal candidate will provide scientific expertise in toxicology, support product development and regulatory submissions, and ensure compliance with national and international safety standards.

• Conduct toxicological risk assessments for raw materials, formulations, products, and environmental exposures.
• Review and interpret toxicological, pharmacological, and epidemiological data.
• Prepare safety assessments, hazard evaluations, and exposure analyses.
• Provide scientific guidance for product development, regulatory strategy, and labeling requirements.
• Author and review technical reports, safety dossiers, and regulatory submissions.
• Ensure compliance with applicable regulations and guidelines (e.g., OECD, EPA, FDA, REACH, GLP, OSHA).
• Collaborate with cross-functional teams including R&D, Quality, Regulatory Affairs, Clinical, and Manufacturing.
• Monitor emerging toxicology research, industry trends, and regulatory updates.
• Support audits, inspections, and responses to regulatory agencies.
• Mentor junior scientists and contribute to scientific training initiatives.
• Participate in external scientific meetings, conferences, and professional organizations.

• Ph.D. or Master’s degree in Toxicology, Pharmacology, Biochemistry, Environmental Health, or related scientific field.
• 8+ years of relevant toxicology experience in industry, consulting, academia, or regulatory environments.
• Strong knowledge of toxicological principles, risk assessment methodologies, and regulatory frameworks.
• Experience with regulatory submissions and compliance documentation.
• Excellent analytical, scientific writing, and communication skills.
• Ability to manage multiple projects and work collaboratively across departments.
• Proficiency in scientific literature review and data interpretation.

• Board certification such as DABT (Diplomate of the American Board of Toxicology) preferred.
• Experience in pharmaceutical, chemical, cosmetics, food safety, or environmental toxicology.
• Familiarity with computational toxicology, QSAR models, or in vitro testing methods.
• Experience leading teams or managing scientific projects.

• Scientific and analytical expertise
• Critical thinking and problem-solving
• Attention to detail
• Regulatory knowledge
• Project management
• Leadership and mentoring
• Effective written and verbal communication

• Competitive salary package
• Health and wellness benefits
• Performance bonuses
• Professional development opportunities
• Retirement and insurance benefits
• Flexible work arrangements