Associate Scientist, Product Biochemistry

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking a talented Associate Scientist to join our Product Biochemistry group, supporting the characterization, modification, conjugation, purification, and binding analysis of critical reagents used across multiple therapeutic programs, in an on-site capacity. In this role, you will perform advanced characterization of biological reagents using biochemical, biophysical, and binding-based analytical techniques, including Biacore (SPR), to generate high-quality data that supports reagent program needs and lifecycle management, while collaborating with cross-functional teams to support project timelines and reagent-related deliverables.

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

When & where:

• Shift Requirements: Full-time, standard business hours

• Location: On-site in Tarrytown, NY

• Flexibility & travel: Minimal to no travel; on-site laboratory presence required to support experimental work and instrumentation needs

What you'll do:

• Support the purification, characterization, modification, and conjugation of critical protein and biomolecule reagents using standard analytical methods and laboratory procedures

• Perform advanced characterization of reagents to evaluate identity, purity, stability, aggregation, binding properties, and overall fitness for intended use

• Perform reagent labeling and modification activities to support assay development, method qualification, and reagent supply needs

• Perform binding characterization studies using Surface Plasmon Resonance (SPR) and other analytical platforms to evaluate molecular interactions and reagent performance

• Accurately document laboratory activities, experimental procedures, and analytical results in the electronic laboratory notebook (ELN) following established procedures

• Communicate experimental findings and project updates to the supervisor and team members in a timely manner; summarize results in clear, concise reports and presentations

• Present findings at group meetings and contribute to scientific discussions and problem-solving efforts

• Maintain, troubleshoot, and support laboratory instrumentation necessary for reagent characterization and analytical testing

The environment and physical rhythms of this role:

• This is an on-site, hands-on laboratory role requiring the ability to work both independently and within a team on multiple projects simultaneously

• The role includes contributing to lab equipment maintenance and safety practices to help maintain a safe, effective, and efficient working environment

Let's find out if we're a fit:

Must-haves:

• BS/MS in Biochemistry, Biophysics, or a related field, with 0–3+ years of experience

• Initiative and drive to complete meaningful tasks and learn new technologies

• Strong organizational, communication, analytical, computer, and technical writing skills

• Excellent oral and written communication skills and evidence of teamwork

Preferred / nice-to-haves:

• Technical proficiency in automated FPLC and/or HPLC (SEC, IEX, affinity), electrophoresis (capillary or microchip, SDS-PAGE, western blots), spectroscopy, and light scattering

• Fundamental understanding of protein structure/function, protein-protein interaction, and general biochemistry

• Experience working in the biopharmaceutical industry

Thrive today. Grow tomorrow.

• Student Loan Paydown program & Tuition Reimbursement

• Family Care Benefits

• Relocation Assistance

• Inclusion, Culture and Well-Being programs (including physical & mental health)