Senior Toxicologist
- Location
- Cambridge, MA; TARRYTOWN
- Work mode
- On-site
- Employment type
- Full-time
About the job
Build Our Future Together: At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. As a Senior Toxicologist you will utilize your scientific expertise and regulatory experience to lead nonclinical development programs with guidance from their direct supervisor working effectively within cross-functional project teams. The Sr. Toxicologist will demonstrate a thorough understanding of GLP regulations and FDA/EMEA/ICH nonclinical safety guidelines to independently lead the design, conduct, interpretation, and reporting of regulatory toxicology and/or exploratory pharmacology/toxicology studies in rodent and non-rodent safety models. The Sr. Toxicologist will provide primary authorship of all regulatory documentation required for submission packages, demonstrating excellent problem solving and communication skills (written and verbal).
Experience with multiple therapeutic modalities preferred, including antibody, oligonucleotide, and genetherapy products.
When & Where: This role is required to sit onsite in Cambridge, MA or Tarrytown, NY four days per week.
Discover Your Role:
- Represent toxicology on global research and development project teams communicating non-clinical safety assessment strategy.
- Coordinate cross-department execution of the experimental plan including program budgets, and timing of toxicology studies in relation to regulatory and clinical milestones.
- Work with study monitoring group to coordinate, design, monitor, and report toxicology and safety pharmacology studies at contract research organizations.
- Communicate toxicology study findings, including relevant interpretation, to project teams and management.
- Contributing to non-clinical sections of regulatory documents including IND and NDA submissions.
- Maintain currency with GLP regulations and ICH, FDA and EMEA non-clinical safety guidelines.
- Keep up with the latest scientific developments by reading the current literature and attending conferences.
This Role Requires:
• Advanced degree (e.g. PhD, DVM) in pharmacology, toxicology or closely related biological science along with 3-5 years relevant pharmaceutical industry experience, or Master’s Degree + ≥ 10 years relevant pharmaceutical industry
- Advanced degree (e.g. PhD, DVM) in pharmacology, toxicology or closely related biological science along with 3-5 years relevant pharmaceutical industry experience, or Master’s Degree + ≥ 10 years relevant pharmaceutical industry
- Experience in designing, monitoring and interpreting non-clinical safety studies.
Where necessary, we disclose salary ranges for roles in all countries in which we operate. The final offer will be determined within the relevant range based on the country of employment, specific role level, and your skills and experience. In some countries, collective bargaining agreements (CBAs) may apply and influence certain elements of pay or benefits. Regeneron offers a competitive and comprehensive total rewards package which may include, depending on country and role: annual bonuses or other incentive plans, equity awards, pension or retirement benefits, 401(k) company match, health and wellness programs, fitness centers, insurance benefits (e.g. medical, dental, vision, life and disability), paid time off, and family support benefits. For additional information about Regeneron benefits in the U.S., please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/ . For other locations, additional information will be provided during the recruitment process. If you have any questions, please speak with your recruiter.
Please be advised that at Regeneron, we believe we do our best work when we are together. For that reason, many roles are required to be performed on‑site. Please speak with your recruiter and hiring manager for more information about on‑site expectations for your role and location.
As part of the recruitment process, certain background checks may be conducted in accordance with the laws of the country where the position is based. The purpose of such checks is to verify certain information prior to the commencement of employment such as identity, right to work and educational qualifications.
For jobs in Canada: this posting is for an existing position.
Salary Range (annually) $128,600.00 - $210,000.00
From Regeneron Pharmaceuticals's careers page (Workday), checked 29 Oct 2026.
How to apply
- Select Apply on regeneron.com. It opens Regeneron Pharmaceuticals's own application form in a new tab, run on Workday.
- Fill in the form and upload your résumé there. Jobiwork never sees your application.
- Regeneron Pharmaceuticals will reply to you directly. No real employer asks you for money to apply.
Posted 28 Oct 2026 · checked 29 Oct 2026 · Report this job