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 Sr. Associate Scientist to join our Obesity, Metabolism and Muscle Diseases Group, serving as a central histological resource providing expert tissue processing and staining services across multiple research programs simultaneously. In this role, you will manage end-to-end histological workflows spanning a broad range of tissue types, maintaining rigorous quality standards while navigating competing program demands to deliver high-quality data on time.This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.When & where:Location: Tarrytown, NYWork model/flexibility: OnsiteDiscover your role:Process tissue samples from multiple tissue types (e.g., liver, heart, brain, muscle, adipose), including fixation, dehydration, clearing, embedding, and sectioningPerform routine and special histological staining according to program needsConduct IHC and IF, developing, optimizing, and validating new protocols, antibody titrations, and antigen retrieval conditionsApply in situ hybridization (ISH/RNAscope) techniques for gene expression localization where requiredPerform image acquisition using various scanning platforms and manage image data repositoriesPerform quantitative image analysis, developing and applying customized algorithms as neededGenerate high-quality figures and data summaries for internal reports, regulatory packages, and peer-reviewed publicationsMaintain and communicate a dynamic workload tracker, proactively flagging capacity constraints or scheduling conflicts to stakeholdersThis role requires:BS with 5+ years or MS with 2+ years of relevant experienceProficiency in standard and special histochemical staining techniques across multiple tissue typesDemonstrated IHC/IF assay development, optimization, and troubleshooting experienceProficiency with whole-slide imaging systems and digital pathology image analysis software (e.g., HALO)Strong organizational and record-keeping skills, with the ability to manage and prioritize simultaneous requests from multiple stakeholdersExcellent oral and written communication skillsPreferred: experience with in situ hybridization platforms (RNAscope, BaseScope, FISH)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 - $131,100.00