At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking a highly motivated Sr. Associate Scientist to join the Bioconjugate Analytics (BCA) team within the Analytical and Biological Mass Spectrometry (ABMS) Group. In this role, you will develop and apply LC-MS-based analytical methods to advance Regeneron’s bioconjugate pipeline across all stages of development, including antibody-drug conjugates (ADCs), antibody-oligonucleotide conjugates (AOCs), antibody-tethered ligands (ATLs), and other emerging bioconjugate modalities. You will apply state-of-the-art mass spectrometry and analytical technologies to characterize bioconjugates and other therapeutic protein candidates, with a focus on critical quality attributes and process development, while collaborating closely with cross-functional teams to coordinate samples, study activities, priorities, and timelines.

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
• Location: On-site in Tarrytown, NY

What you’ll do:

• Develop and apply LC-MS-based analytical methods to characterize bioconjugates and other therapeutic protein candidates across R&D programs
• Perform sample preparation, LC-MS experiments, and data analysis using relevant software and bioinformatics tools to characterize product quality attributes; document results in electronic laboratory notebook (ELN) entries, presentations, and reports
• Support process development, R&D activities, and regulatory submissions through analytical characterization and scientific problem-solving
• Collaborate with cross-functional teams to understand analytical needs, coordinate samples and study activities, and align priorities, timelines, and deliverables
• Interpret and communicate scientific results through project and group meetings, technical reports, regulatory documents, internal and external conferences, and peer-reviewed publications

The environment and physical rhythms of this role:

• This is an innovative, fast-paced, and collaborative R&D laboratory environment requiring results-driven, highly organized, and adaptable scientific curiosity, with the ability to learn new technologies.
• Strong cross-functional collaboration and communication, with the ability to build productive working relationships and coordinate samples, activities, priorities, timelines, and deliverables across multiple programs, is required.

Let’s find out if we’re a fit:

Must-haves:

• Master’s degree with at least 3 years of relevant experience, or a Bachelor’s degree with at least 6 years of relevant experience, in Chemistry, Biochemistry, Analytical Chemistry, Pharmaceutical Sciences, or a related field
• Industrial or academic experience in analytical characterization of protein therapeutics, bioconjugates, or other therapeutic modalities
• Strong knowledge of and hands-on experience with LC-MS-based characterization of proteins, peptides, and bioconjugates (e.g., ADCs, AOCs, and ATLs), including sample preparation, liquid chromatography, mass spectrometry, and data analysis
• Enjoyment of developing and troubleshooting analytical methods and solving complex scientific and technical problems

Preferred / nice-to-haves:

• Experience with advanced mass spectrometer platforms (e.g., Orbitrap, Q-TOF, and triple quadrupole), liquid chromatography, and relevant data processing software (e.g., Protein Metrics, ChemDraw, Skyline, Proteome Discoverer, Compound Discoverer, and other related analytical tools)

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 (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 https://careers.regeneron.com/en/working-at-regeneron/total-rewards/. 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)