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Senior Associate Scientist, Formulation Development (Peptide and Antibody)

Regeneron
Tarrytown, NY Full Time
POSTED ON 1/12/2026
AVAILABLE BEFORE 3/17/2026
Regeneron's Formulation Development Group (FDG) is seeking a Sr. Associate Scientist with a strong background in protein biochemistry or biophysics to support early to late-stage development for biologics including antibodies and peptide modalities. In this role, you will be responsible for characterizing drug candidates and developing antibody and peptide formulations to enable preclinical and clinical development, and commercialization. You will also perform research on product characterization, formulation, and analytical technology development.

A Typical Day in the Role of Sr. Associate Scientist May Include the Following:

  • Design and execute phase-appropriate formulation development studies, such as formulation screening, stability, and compatibility studies, to support formulation and drug product development for early and late-stage development programs, including antibodies and peptides.
  • Develop and apply fit-for-purpose analytical, biochemical, and biophysical methods to support phase-appropriate formulation development, manufacturing process development, and research stability testing.
  • Conduct biochemical and biophysical assessments and pre-formulation studies to support evaluation of preclinical drug candidates.
  • Provide technical support for development, technology transfer and manufacture of drug substance and drug product and collaborate with cross-functional teams.
  • Collaborate with scientific colleagues in conducting research and development work and investigating and solving development problems.
  • Author and review formulation development sections of regulatory and technical documents, study reports, technology transfer documents, and manuscripts for publication.
  • Utilize statistical science knowledge for study design and data analysis.
  • Present work internally at group, department and cross functional meetings and at external conferences.
  • Participate in research and technology innovation projects.
  • Participate in the general laboratory and instrument maintenance.

This Role Might Be For You If

  • You possess a passion for science and innovation.
  • You are motivated to solve problems and make contributions in a team environment.
  • You excel when working in a fast-paced environment and can manage multiple projects and competing priorities.
  • You have excellent interpersonal, oral, and written communication skills.

This role requires a BS degree in Biochemistry, Chemistry, Biophysics, Protein Chemistry, Pharmaceutical Science, or a related discipline with 6 years of industry or academia working experience, or an MS degree in the above-mentioned fields with 3 years of hands-on research experience. Experience in protein/peptide chemistry and protein/peptide characterization with keen analytical and problem-solving skills are desired. The ability to design and execute experiments, as well as interpret, document, and communicate results with minimal supervision is required. Experience with protein stability, structure or biophysical studies is desirable. Hands-on experience and troubleshooting proficiency with applying chromatography (SEC, IEX, RP, HIC) and/or biophysical techniques such as light scattering (DLS, MALS, SLS) and AUC for studying proteins is desirable.

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We have an inclusive and diverse culture that provides comprehensive benefits, which often include (depending on location) health and wellness programs, fitness centers, equity awards, annual bonuses, and paid time off for eligible employees at all levels!

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, nationality, national or ethnic origin, civil status, age, citizenship status, membership of the Traveler community, sexual orientation, disability, genetic information, familial status, marital or registered civil partnership status, pregnancy or parental status, gender identity, gender reassignment, military or veteran status, or any other protected characteristic in accordance with applicable laws and regulations. The Company will also provide reasonable accommodation to the known disabilities or chronic illnesses of an otherwise qualified applicant for employment, unless the accommodation would impose undue hardship on the operation of the Company's business.

For roles in which the hired candidate will be working in the U.S., the salary ranges provided are shown in accordance with U.S. law and apply to U.S.-based positions. For roles which will be based in Japan and/or Canada, the salary ranges are shown in accordance with the applicable local law and currency. If you are outside the U.S, Japan or Canada, please speak with your recruiter about salaries and benefits in your location.

Please note that certain background checks will form part of the recruitment process. Background checks will be conducted in accordance with the law of the country where the position is based, including the type of background checks conducted. The purpose of carrying out such checks is for Regeneron to verify certain information regarding a candidate prior to the commencement of employment such as identity, right to work, educational qualifications etc.

Salary Range (annually)

$79,100.00 - $129,100.00

Salary : $79,100 - $129,100

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