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Associate Scientist - Protein Expression Science

Job in Tarrytown, Westchester County, New York, 10591, USA
Listing for: Regeneron
Full Time position
Listed on 2026-07-17
Job specializations:
  • Research/Development
    Research Scientist, Immunology Research, Biomedical Science
Job Description & How to Apply Below

Associate Scientist

We are looking for an Associate Scientist to join the B cell Isolation Group in the Protein Expression Sciences department. You will be primarily responsible for the preparation and immunofluorescence staining of mouse splenocytes for the isolation of antibody expressing cells through fluorescence activated cell sorting (FACS). You will be working in the B Cell Isolation group, which is key to the Regeneron therapeutic pipeline.

Through this platform, you will get exposure to different targets, giving you the opportunity to see a wide range of therapeutic focus areas. This is a lab-based role, with great opportunity to perform cutting-edge research, and great potential for growth.

Responsibilities during a typical day might include the following:

  • Laboratory animal handling (mice) – splenectomy, lymphadenectomy, hind limb removal, post-mortem bleed collection
  • Single cell suspension preparation from organs (mouse spleen, lymph nodes, bone marrow)
  • Immunofluorescence cell staining
  • Analyzing flow cytometry data from stained samples
  • Isolating target cells through fluorescence activated cell sorting (FACS)
  • Immunofluorescence beads based binding affinity assay
  • Documentation of experimental procedures and results
  • Recording and organizing data in electronic notebook/database, Powerpoint and LIMS
  • Analyze data using tools such as Flow Jo, Omiq, Microsoft Office, MacOS, and Graph Pad Prism
  • Periodic data presentation
  • Lab preparation, organization and resource acquisition
  • Collaborating and coordinating workflow intra and interdepartmentally to keep antibody discovery pipeline on track

This role may be for you, if you:

  • Enjoy working in a collaborative and fast paced environment
  • Have a strong desire to develop your skills
  • Excel at maintaining experimental documentation, exhibit meticulous attention to detail
  • Have great oral and written communication skills, organizational skills, as well as good interpersonal skills
  • Are comfortable working in a dynamic environment where priorities can change from day to day
  • Self-starter with an ability to follow protocols, ask scientific questions, and adapt to evolving methods
  • Have an eye for detail and pride yourself on the quality of your work
  • Work on current problems while thinking of future solutions

To be considered for this role, you must have a minimum of B.S. in Molecular Biology, Cellular Biology or related field with 2+ years of laboratory experience. We would like someone with cellular biology lab experience, and basic laboratory animal handling experiences (mice). Experiences with immunofluorescence-based techniques, immunofluorescence cell staining, and knowledge of immunology are preferred. Experience with flow cytometry is a plus.

Position Requirements
10+ Years work experience
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