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Senior Scientist - AAV (CDMS) - Analytical and Biological Mass Spectrometry (ABMS)

BioSpace
Tarrytown, NY Full Time
POSTED ON 8/1/2026
AVAILABLE BEFORE 9/1/2026
Regeneron Pharmaceutical's Analytical and Biological Mass Spectrometry Group (ABMS), located in Tarrytown, NY, is seeking a highly motivated Sr. Scientist. In this role, you will work in an innovative mass spectrometry (MS) lab and develop LC-MS methods for characterizing biotherapeutic products to support all stages of drug development, from early-stage candidate selections to late-stage regulatory submissions. You will conduct and develop innovative technologies to support a diverse Regeneron's R&D pipeline.

A Typical Day In The Role Might Look Like

  • Design, execute, and clearly communicate analytical characterization for biotherapeutics, including adeno-associated virus (AAV), monoclonal and bispecific antibodies, Fc-fusion proteins, and other modalities, to support drug development.
  • Lead and execute characterization activities to evaluate and elucidate critical quality attributes such as charge variants, size variants, and post-translational modifications, with an emphasis on charge detection mass spectrometry (CDMS) and related native-MS approaches.
  • Provide analytical support for cross-functional teams, including formulation development, upstream/downstream process development, and manufacturing to solve drug development challenges.
  • Proactively advance LC-MS characterization of biotherapeutics by developing innovative techniques that address evolving developmental needs and improve operational efficiency.
  • Independently conduct sample preparation and LC-MS analyses in compliance with SOPs, and document experimental procedures and results in electronic laboratory notebook (ELN).
  • Author and review regulatory submission documents, including IND, comparability, and BLA reports, and contribute to manuscripts for peer-reviewed publications.
  • Represent analytical development on project teams, provide subject matter expertise, and communicate results at internal and external meetings.


This Role Might Be For You If You

  • You thrive in a fast-paced, collaborative environment and consistently deliver results with efficiency and ownership.
  • You quickly learn new technologies, tackle complex problems, and have a passion for science.
  • You are self-motivated and proactive, prioritizing effectively, and driving work forward with minimal supervision.


To be considered for this role, you must have a BS (10 years), MS (7 years) or PhD degree (0-3 years) in Analytical Chemistry, Biochemistry, Pharmaceutical Sciences, or a closely related field. Experience with charge detection mass spectrometry (CDMS) is strongly preferred. Experience applying LC-MS to extended characterization of AAV and monoclonal antibodies to support product and process development is a plus. Extensive experience with advanced mass spectrometers (Q Exactive Plus, Q Exactive UHMR, Q-TOF, etc.), liquid chromatography, and data processing software (Protein Metrics, Skyline, UniDec etc.) is desired. Experience with experimental design and data analysis (e.g., molecular modeling, graphing, and statistical analysis) is a plus. Please copy and paste the desired job description for this role here. If you need a copy of an existing job description please reach out to TA or work with your HR Business Partner to develop one for a new role.

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 onsite. Please speak with your recruiter and hiring manager for more information about onsite 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)

$109,900.00 - $179,300.00

Salary : $109,900 - $179,300

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