Senior Associate Scientist - Assay Development

Build our future together:

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. We are seeking a Senior Associate Scientist to join our team, supporting our pipeline in a hybrid work mode. In this role, you will develop and validate immunoassays while collaborating with Assay Development Group scientists and study directors. This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

When & where:

Tarrytown, New York

On-site

Discover your role:

• Design, execute, and troubleshoot immunoassays, including enzyme-linked immunosorbent assays, with minimal supervision.
• Develop immunoassay methods and write validation protocols for study director review.
• Perform validation experiments and prepare tabular results, reports, and procedure documents.
• Process samples, run assays, and analyze data under current GxP guidance.
• Evaluate new immunoassay technologies, formats, and techniques.
• Operate laboratory instruments and oversee verifications or maintenance when required.
• Oversee reagent preparation, laboratory supplies, cleanliness, and safety compliance.
• You manage multiple projects and clearly present results through reports or presentations.

This role requires:

• Bachelor’s degree in biology or a related field and three to six years of experience.
• Hands-on immunoassay knowledge using multiple detection systems.
• Understanding of methodologies measuring proteins and immunogenicity.
• Knowledge of Good Laboratory Practice, FDA regulations, and company standard operating procedures.
• Prior bioanalytical assay development experience is highly desirable.
• Master’s degree is preferred.

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