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 Process Development Engineer I to join our Late-Stage Purification Development team within Preclinical Manufacturing and Process Development (PMPD) in an on-site capacity. In this role, you will develop and transfer harvest, affinity chromatography, and viral inactivation processes for recombinant proteins using Quality by Design principles, while collaborating with process development and manufacturing colleagues. 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, NY Work model: On-site Discover your role: Design and execute experiments at bench and pilot scale Analyze data, draw conclusions, and propose next steps Document results in laboratory notebooks and reports, and share findings with functional area and department leadership Serve as purification development subject matter expert during manufacturing process transfer to support successful GMP batches Collaborate cross-functionally with the process development team to enable a robust, cohesive manufacturing process Support technology development, such as automating pilot-scale unit operations, improving bench-scale process models, building historical data workflows, and evaluating new raw materials, equipment, or techniques Train and mentor peers, co-op students, and interns in running experiments, analyzing data, and documenting results Contribute to lab equipment maintenance and lab safety to keep our working environment safe, effective, and efficient This role requires: Bachelor's or Master's degree in Chemical Engineering, Biochemical Engineering, Biochemistry, or a related field, with 0-2 years of recombinant protein purification experience Hands-on experience with techniques such as depth filtration, disc stack centrifugation, column chromatography, virus retentive filtration, ultrafiltration/diafiltration, and buffer preparation A solid understanding of, and practical experience in, purifying monoclonal antibodies or other biopharmaceuticals Experience with process automation, such as hardware, control logic, and/or HMI development Thrive in a team-based, collaborative environment; must be well-organized and can manage multiple projects efficiently Preferred: strong fundamental understanding of protein purification techniques Preferred: experience with Akta chromatography systems, HPLC, UPLC, Empower, Unicorn, JMP, LIMS, Python, Ignition, and PI Historian #pmpd 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 Regeneron is a leading biotechnology company that invents life-transforming medicines for people with serious diseases. Founded and led for over 30 years by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to nine FDA-approved treatments and numerous product candidates in development, almost all of which were homegrown in our laboratories. Our medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, neurology, infectious diseases and rare diseases. Regeneron is also proud of award winning culture of innovation, being recognized as a Great Place to Work in 2021, Fast Company’s Best Workplace for Innovators in 2020, and Forbes JUST companies in 2020, among others.

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30 Oct, 2026

Regeneron

Senior Medical Director, Clinical Development, Classical Hematology

Leadership

$333.3k–450.9k/yr

TARRYTOWN, United States of America

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