Principal Scientist

About the Role

Regeneron's Bioanalytical Sciences group, located in Tarrytown, NY, is looking for a Principal Scientist. In this role you will serve as the Bioanalytical Sciences Lead to manage bioanalytical strategy and oversee bioanalytical activities for clinical programs. Acts as the liaison between Bioanalytical Sciences (BAS) and clinical study teams to effectively manage pharmacokinetics (PK), immunogenicity, and biomarker deliverables and timelines for clinical studies. Supports regulatory submissions and interactions to ensure the completeness of sections related to immunogenicity and bioanalysis of PK and target biomarker samples.

Location: Tarrytown, NY Work model/flexibility: 4 days onsite

Key Responsibilities

• Serve as the Bioanalytical Sciences Lead on clinical study teams and participate on project teams both internal and external to Regeneron to oversee bioanalysis for clinical studies.
• Contribute to the development and management of bioanalytical strategy including immunogenicity risk assessment, assay selection, and sampling timepoints for clinical programs.
• Act as a liaison between Bioanalytical Sciences (BAS) and the clinical development team, work closely with groups within BAS, as well as the Clinical Pharmacology group, Regulatory Affairs, clinical study teams, and other working groups to establish bioanalytical deliverables and timelines for multiple projects.
• Review sample analysis documentation and clinical sample analysis reports.
• Contribute to regulatory submissions and responses to regulatory inquiries.
• Contribute to and review clinical study‑related documents including expanded synopses, protocols, amendments, statistical analysis plan, and clinical study reports.
• Review data, SOPs, publications, and guidelines to ensure the conduct of bioanalysis is compliant with industry practice and/or regulatory expectations.
• Prepare and present scientific data at internal and external meetings.

Required Qualifications

• PhD or BS/MS with 5+ years of experience in immunology, pharmaceutical sciences, or related field.
• Experience with bioanalytical techniques, e.g., ELISA, ECL (MSD), LC‑MS, PCR,flow cytometry, or immunogenicity assays.
• Experience with writing/reviewing scientific documents, reports, and contributing to regulatory submissions.
• Strong communication, project management, and interpersonal skills.

Salary & Benefits

Salary Range (annually) $128,600.00 - $210,000.00

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 For other locations, additional information will be provided during the recruitment process.

Company Culture & Values

We are committed to building a workplace with an inclusive culture. Regeneron is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion or belief (or lack thereof), sex, sexual orientation, gender identity or expression, gender reassignment, marital or civil partnership status, civil status, pregnancy or parental status, age, disability, nationality, citizenship status, ethnic or national origin, membership of the Traveler community, familial status, genetic information, military or veteran status, or any other characteristic protected under applicable law. Where required, we will provide reasonable accommodation to applicants with known disabilities or chronic illnesses during the recruitment process, unless such accommodation would impose undue hardship.

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.

Regeneron is a leading biotechnology company that invents life-transforming medicines for people with serious diseases. Founded and led for over 30 years by physician‑scientists, our unique ability to repeatedly and consistently translate science into medicine has led to nine FDA‑approved treatments and numerous product candidates in development, almost all of which were homegrown in our laboratories. Our medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, neurology, infectious diseases and rare diseases. Regeneron is also proud of award winning culture of innovation, being recognized as a Great Place to Work in 2021, Fast Company’s Best Workplace for Innovators in 2020, and Forbes JUST companies in 2020, among others.