Assoc 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) 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