Senior Scientist: Bispecifics and Antibody Engineering

We are seeking a results-driven Senior Scientist to join Regeneron’s Antibody Engineering team within the Bispecifics and Antibody Engineering Department. In this fast-paced, innovative group, you will design, produce, and characterize next-generation antibody and protein therapeutics across multiple therapeutic areas with a focus on myeloid cell biology. Your work will directly contribute to the pipeline and help build new platform capabilities at a pivotal time for antibody engineering.

As a Senior Scientist, a typical day could require the following:

• Apply molecular and structural biology expertise to independently design innovative multi-specific antibodies with desired potency, selectivity and developability.

• Perform molecular and structural-guided design, high-throughput construct generation, and vector engineering using modern software and tools.

• Produce and purify novel and logic-gated alternative format antibodies using mammalian expression systems utilizing an assortment of molecular biology & biochemical techniques (i.e. AKTA systems and other chromatographic columns).

• Characterize binding affinities, binding kinetics & stability.

• Design and implement high-throughput and properly controlled biochemical and cell-based assays (ELISA and AlphaLISA, flow cytometry binding, phagocytic assays, cell activation and cytolytic assays).

• Troubleshoot bioanalytical and cell-based assay data to inform subsequent iterations.

• Engage program stakeholders to communicate biologic designs with data updates to meet program objectives.

• Clearly convey results to management during cross-departmental meetings and maintain timely, accurate entries using Benchling and research ELN.

This role may be a strong fit If You:

• Have expertise in myeloid, molecular, and protein biology.

• Learn new skills quickly and troubleshoot antibody production and functional assays effectively.

• Excel in data analysis and interpretation while supporting multiple projects simultaneously.

• Competently prioritize efforts to quickly adapt to evolving program directions.

• Possess exemplary organizational, communication, and presentation skills.

• Enjoy collaborating across diverse, cross-functional teams.

To be considered for this role you must have a PhD in molecular biology, cell biology, biochemistry, immunology or a related field with at least one year of relevant experience in academia or industry. Core hands-on experience with cloning, antibody expression in mammalian cell lines, antibody purification (i.e., using AKTA systems), and comprehensive protein characterization is desired; however, we’re excited to train motivated learners. Familiarity with cell-free expression and structural AI/ML-design is preferred but not required.

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We have an inclusive culture that provides comprehensive benefits, which vary by location. In the U.S., benefits may include health and wellness programs (including medical, dental, vision, life, and disability insurance), fitness centers, 401(k) company match, family support benefits, equity awards, annual bonuses, paid time off, and paid leaves (e.g., military and parental leave) for eligible employees at all levels! For additional information about Regeneron benefits in the US, please visit For other countries’ specific benefits, please speak to your recruiter.
Please be advised that at Regeneron, we believe we are most successful and work best when we are together. For that reason, many of Regeneron’s roles are required to be performed on-site. Please speak with your recruiter and hiring manager for more information about Regeneron’s on-site policy and expectations for your role and your location.

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)