Associate Scientist, RSX Core (Protein Expression Sciences)

Regeneron
Tarrytown, NY

We are looking for a highly motivated Associate Scientist to join our protein production team. You will be responsible for producing therapeutic protein candidates and reagent proteins used in the early discovery stage of drug development, by performing ExpiCHO transient transfections, or by generating Chinese hamster ovary (CHO) stable cell lines using our proprietary technology.

A typical day in the life of an Associate Scientist in the RSX Core may include:

  • Culturing multiple CHO cell lines.
  • Performing transfections for the transient expression of recombinant proteins.
  • Creating stable CHO cell lines expressing recombinant proteins.
  • Producing recombinant proteins from transient or stable CHO cells.
  • Characterizing protein expression by electrophoresis, Western blotting and other methods.
  • Compiling and analyzing data, recording data in electronic lab notebook and databases.
  • Maintaining lab equipment and supplies.

This job may be for you if:

  • You are passionate about hands-on work in mammalian cell culture and protein characterization, specifically working with CHO cells.
  • You are well organized and detail oriented.
  • You enjoy working in a fast-paced and deadline-driven team environment to discover lifesaving medicines for people with serious medical conditions.

To be considered for this position you must have a B.S. degree and 1- 3 years of relevant experience, or a M.S. degree and 1 year of relevant experience, or equivalent. A strong background in molecular biology, cell biology and protein chemistry, and lab-based research experience is desired. Experience with aseptic techniques used in mammalian cell culture is a must. Preference will be given to candidates with experience in protein expression in E.coli , yeast, insect cells or mammalian cells. To be successful in this role you should be organized, enjoy working in a collaborative team environment and have good communication skills.

Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We have an inclusive and diverse culture that provides comprehensive benefits, which often include (depending on location) health and wellness programs, fitness centers, equity awards, annual bonuses, and paid time off for eligible employees at all levels!

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, nationality, national or ethnic origin, civil status, age, citizenship status, membership of the Traveler community, sexual orientation, disability, genetic information, familial status, marital or registered civil partnership status, pregnancy or parental status, gender identity, gender reassignment, military or veteran status, or any other protected characteristic in accordance with applicable laws and regulations. The Company will also provide reasonable accommodation to the known disabilities or chronic illnesses of an otherwise qualified applicant for employment, unless the accommodation would impose undue hardship on the operation of the Company's business.

For roles in which the hired candidate will be working in the U.S., the salary ranges provided are shown in accordance with U.S. law and apply to U.S.-based positions. For roles which will be based in Japan and/or Canada, the salary ranges are shown in accordance with the applicable local law and currency. If you are outside the U.S, Japan or Canada, please speak with your recruiter about salaries and benefits in your location.

Please note that certain background checks will form part of the recruitment process. Background checks will be conducted in accordance with the law of the country where the position is based, including the type of background checks conducted. The purpose of carrying out such checks is for Regeneron to verify certain information regarding a candidate prior to the commencement of employment such as identity, right to work, educational qualifications etc.

Salary Range (annually)

$69,300.00 - $108,500.00
Posted 2025-09-30

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