Associate Scientist, Product Biochemistry

Build our future together:

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking an Associate Scientist to join our Product Biochemistry group, supporting biotherapeutic characterization programs in an on-site capacity in Tarrytown, NY. In this role, you will perform in-depth biochemical and biophysical characterization of protein- and oligonucleotide-based therapeutics, contributing to method development, assay support, and GxP stability testing, while collaborating with cross-functional teams spanning research, pre-clinical, and clinical programs.

This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

When & where:

• Location: Tarrytown, NY
• Work model/flexibility: Onsite
• Shift Requirements: Full-time, standard business hours, with flexibility to support before- and after-hours as needed

Discover your role:

• Perform biochemical and biophysical characterization experiments using techniques such as CE, SEC-MALS, DLS, FT-IR, fluorescence spectroscopy, CD, and DSF
• Develop, optimize, and run light scattering–based assays with manager guidance to support molecule characterization
• Analyze and interpret experimental data, identifying trends and communicating key findings to project teams
• Document laboratory activities and data accurately in electronic laboratory notebooks per established procedures
• Write SOPs, summaries of analysis, and reports within a GxP-controlled environment
• Prepare clear, well-organized summaries of results for presentations, reports, and regulatory-supporting documentation
• Present experimental findings at group, departmental, and cross-functional meetings
• Maintain, troubleshoot, and operate essential lab instrumentation, ensuring equipment and supplies stay ready for use

This role might be for you if:

• You enjoy working in a fast-paced environment
• You're a fast learner with a desire to expand your skill set and learn new techniques
• You're detail-oriented, well-organized, and comfortable managing multiple tasks
• You're a team player who also works well independently
• You communicate clearly, both in writing and verbally
• You bring scientific curiosity and a genuine interest in learning new technologies

This role requires:

• Bachelor's degree in Biochemistry, Biophysics, Chemical Engineering, Biomedical Engineering, or related discipline with approximately 0-5 years of post-degree lab experience, or Master's degree with approximately 0-3 years of post-degree lab experience
• Hands-on experience with general laboratory operations and data organization under managerial supervision
• Fundamental proficiency in analytical methodologies such as SEC, UV-Vis spectrophotometry, and spectroscopic-based methods (CD, FT-IR)
• Understanding of biochemical and biophysical characterization principles for proteins and/or oligonucleotides
• Strong organizational skills, with the ability to prioritize multiple tasks while maintaining proper documentation

Preferred / nice-to-haves:

• Experience with additional analytical platforms such as HPLC/UPLC, light scattering (SEC-MALS, DLS), CD spectroscopy, fluorescence, FT-IR, and DSF
• Exposure to analytical method development and assay optimization
• Familiarity with late-stage development, comparability, or regulatory-supporting studies
• Experience working in a GxP lab and following SOPs
• Experience writing technical documents (e.g., SOPs)

Physical and Work Environment:

• This is a laboratory-based role requiring routine standing, sitting, handling of laboratory equipment, and lifting light to moderate weights
• May involve exposure to common laboratory chemicals and instrumentation in a regulated research environment

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 . 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)

$70,300.00 - $110,100.00