
Senior Associate Scientist - Immuno Assay
Regeneron PharmaceuticalsRole Overview
Regeneron Pharmaceuticals is hiring a Senior Associate Scientist - Immuno Assay. This is a full-time role in TARRYTOWN. posted today. applications are still in the early window, before most candidates have applied. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job description
Regeneron's Assay Development Group (ADG), located in Tarrytown, NY, is seeking a highly motivated Senior Associate Scientist to join the team. The ADG in Bioanalytical sciences develops preclinical and clinical assays to support program pipeline. In this role, you will support ongoing work, sample preparation, assay runs, data processing ensuring compliance with current GxP guidance documentation.
A Typical Day in This Role Looks Like:
· Designs and executes immunoassays (e.g., ELISA) with minimal supervision, based on protocols provided by literature, seminars and other scientists. Troubleshoots assay-related problems with minimal guidance of his/her supervisor and performs follow-up experiments. Suggests modifications to protocols or alternative protocols.
· Develops immunoassay methods and writes assay validation protocols for review with minimal supervision by supervisor and/or Study Director.
· Routinely multi-tasks and can work on multiple projects simultaneously.
· Summarizes and presents results to supervisor in a logical manner, verbally and in written reports or presentations.
· Expertly performs validation experiments, summarizes results in a tabular manner. Writes/reviews validation reports and procedure documents for review by the Study Director.
· Communicates effectively with supervisor and other members of the Assay Development Group.
This Role May Be for You If You Have Experience:
· Overseeing the preparation of reagents and buffers for use within the Assay Development Group and may coordinate the re-ordering of laboratory supplies and reagents when needed.
· Effectively operating a range of laboratory instrumentation and may oversee instrument verifications and/or maintenance, if required.
· Evaluating new technologies for the development of immunoassays using new formats or techniques.
· Maintaining GLP compliance for all laboratory work and documentation related to assay validations in accordance with FDA regulations and company SOPs. Assists in maintaining GLP compliance in the laboratory.
· Maintaining cleanliness of individual and communal work areas.
· Learning and complingwith safety requirements of his/her laboratory. Recognizes potential safety problems and takes action to correct them.
To be considered for this role, you must have a Bachelor's degree (Master's preferred) in Biology or a related field with 3-6+ years of proven experience. Hands-on knowledge in immunoassays using a variety of detection systems and a proven understanding of additional methodologies to measure proteins and immunogenicity is needed. Prior experience in bioanalytical assay development is highly desirable.
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 - $131,100.00About Regeneron Pharmaceuticals

Regeneron Pharmaceuticals
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Frequently Asked Questions
How do I apply for the Senior Associate Scientist - Immuno Assay position at Regeneron Pharmaceuticals?
Use the Apply button above to submit your application directly to Regeneron Pharmaceuticals. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Associate Scientist - Immuno Assay position at Regeneron Pharmaceuticals located?
This position is based in TARRYTOWN. Regeneron Pharmaceuticals has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Associate Scientist - Immuno Assay at Regeneron Pharmaceuticals earn?
Regeneron Pharmaceuticals has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Associate Scientist - Immuno Assay role at Regeneron Pharmaceuticals posted?
This role was posted on July 21, 2026 (today). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Associate Scientist - Immuno Assay role at Regeneron Pharmaceuticals require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Regeneron Pharmaceuticals lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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