Sr Assoc Scientist, Intact Mass (Analytical and Biological Mass Spectrometry)

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 Intact Mass, proteomics technologies and key MS platforms 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 pipeline across all stages of development, including antibodies (monospecific, bispecific, and alternative formats), antibody-drug conjugates (ADCs), and other emerging modalities (AAVs, siRNA). You will apply state-of-the-art mass spectrometry and analytical technologies to characterize 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 that is making a meaningful difference for 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 mAbs 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

Plan and prioritize work, manage and visualize data, and deliver clear, timely updates

The environment and physical rhythms of this role:

This is an innovative, fast-paced, and collaborative R&D laboratory environment that calls for results-driven, highly organized, and adaptable scientists with scientific curiosity and the ability to learn new technologies.

Strong cross-functional collaboration and communication skills are required, including the ability to build productive working relationships and to coordinate samples, activities, priorities, timelines, and deliverables across multiple programs.

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 antibody-drug conjugates, including sample preparation, liquid chromatography, mass spectrometry, and data analysis

Enjoy 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., Xcalibur, Protein Metrics, ChemDraw, Skyline, Proteome 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)

$80,300.00 - $131,100.00