Principal Scientist - Bioanalytical Quality Scientist

Build our future together:

Regeneron is seeking a Senior Principal Scientist to serve as a Biomarker Assay Quality Lead within Translational Medicine. In this highly collaborative, matrixed role, you will help ensure that biomarker assays supporting clinical development are scientifically rigorous, fit for purpose, and executed to consistently high quality standards. You will provide independent oversight of externally led assay development, validation, implementation, and quality monitoring across a broad range of platforms, including molecular and next-generation sequencing assays, immunohistochemistry and AI-enabled pathology, ligand-binding assays, proteomics, LC-MS and metabolomics, flow cytometry, qPCR/qRT-PCR, and emerging technologies.

You will partner with internal teams and external laboratories to strengthen assay strategies, minimize the impact of preanalytical variables, and deliver reliable biomarker data that support clinical endpoints and development decisions. From project initiation through closeout, you will review and approve scopes of work, development and validation plans, quality-control strategies, final validation reports, and biomarker analytical reports.

When & where:

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

Discover your role:

• Provide independent scientific and quality oversight for biomarker assay development, validation, implementation, and ongoing performance across multiple technology platforms.
• Review and approve assay-development scopes of work, analytical validation plans, quality-monitoring plans, final validation reports, and biomarker analytical reports.
• Define fit-for-purpose validation strategies and design pilot studies to identify and control preanalytical variables that may affect assay performance.
• Partner with Global Clinical Operations and external central, specialty, contract research, and diagnostic laboratories to ensure assays are properly validated and implemented for clinical sample testing.
• Conduct technical assessments and site visits as needed to evaluate analytical performance, operational rigor, scientific quality, and readiness to meet clinical-study needs.
• Influence internal teams and external partners to standardize and harmonize specimen selection, collection, processing, storage, and quality-monitoring practices.
• Collaborate with Regeneron laboratories, including Discovery Research, Molecular Profiling, the Regeneron Genetics Center, DNA Core, and Bioanalysis, to translate research assays into validated clinical methods and standardized assay documentation.
• Improve the efficiency, consistency, and scalability of biomarker assay development and validation across Precision Medicine and partner organizations.

This role requires:

• A Ph.D., M.D., or comparable advanced degree in a relevant scientific discipline.
• 3+ years of experience contributing to cross-functional teams in the pharmaceutical or biotechnology industry, including at least three years in clinical assay development, validation, and implementation.
• Broad analytical-validation experience across biomarker platforms, with particular strength in molecular testing, including DNA and RNA methods, and histochemistry.
• Deep understanding of the scientific and operational challenges involved in developing, validating, and implementing biomarker assays in clinical development.
• Working knowledge of relevant regulatory requirements, CLIA/CAP expectations, fit-for-purpose validation principles, and industry best practices.

#PMQBS

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! 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.

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