Proces Development Engineer III, Bioconjugation Development

Company: Regeneron Pharmaceuticals, Inc.
Location: Tarrytown
Posted on: March 19, 2026

Job Description:

Regeneron's Preclinical Manufacturing & Process Development group (PMPD), located in Tarrytown NY, is seeking a hardworking and dynamic Process Development Engineer III for its new Synthetic and Bioconjugation Scale-up Technologies (SBST) group. In this exciting new role, you will develop conjugation and purification processes for bioconjugation of proteins to a diverse range of smaller-molecules. You would work in close collaboration with cross-functional teams for process development and optimization using the principles of Quality by Design (QbD) to make the processes suitable for GMP production. This role also involves process scale-up and technology transfer of manufacturing related workflows to Contract Development and Manufacturing Organizations (CDMOs) or Regeneron based manufacturing suites to ensure timely and reliable entrance to the clinic through product commercialization. A Typical Day in the role of Process Development Engineer III might include: Working at the bench to design and develop scalable, robust and controlled GMP-ready bioconjugation and purification processes. Collaborating with analytical groups within or outside the organization to establish supportive analytical characterization techniques. Discussing plans and data in cross functional teams to evaluate processes and determine developmental goals and ensure integrated program success. Proactively complying to lab safety and environmental safety expectations of both Regeneron and regulatory bodies such as Food and Drug Administration (FDA), Department of Transportation (DoT), etc. Using statistical design of experiments (DOE) to optimize bioconjugation processes including conjugation reactions, purification operations, and analytical characterization. Partnering with External Manufacturing group and other key partners at Regenerons IOPS organization to provide technical assessment of CDMOs intended for GMP production and successfully transferring processes with immediate, first-time success. Researching, identifying, and developing new technologies to improve processes, generate predictive process models, and pioneer novel at-line/in-line process analytical technologies (PAT) to ensure robust and controllable bioconjugation and purification processes. Authoring robust technology transfer documentation and supporting production with onsite presence during scale-up/GMP manufacturing activities. Analyzing and presenting data in a clear and cohesive manner to a broad audience facilitating data-driven decision making. Authoring, reviewing, or providing domain expertise for publications, reports, tech transfer documents, regulatory support documents and patents. Being a responsible lab citizen by ensuring timely maintenance of lab equipment, keeping the lab tidy and organized and proactively planning for lab resources. Coaching and mentorship of junior team members of the organization as needed. This Role May Be For You If You: Enjoy working in the lab to advance exciting new drug modalities to patients. Have strong initiative and aim to complete challenging tasks and learn new technologies. Have a strong fundamental understanding of various protein purification and technology transfer principles Are capable of multi-tasking and working both independently and in a collaborative environment involving cross-functional teams. Have excellent interpersonal, verbal and written communication skills. Can think critically and demonstrate problem-solving skills. This role requires a Bachelors 10 years relevant experience or Masters 8 years relevant experience or a PhD 0-3 years experience in chemical/biochemical engineering or a related field. Experience with antibodies in the bioconjugates space is highly preferable. Hands on experience with bioconjugation processes (lysine-based, cysteine-based, site-specific etc.) with practical knowledge of downstream purification techniques such as chromatography, ultrafiltration/diafiltration, membrane technologies etc. is preferred. Experience with a variety of analytical characterization tools such as high-performance liquid chromatography (HPLC), UV spectroscopy, etc. is preferred. Note: title will be commensurate with experience Does this sound like you? Apply now to take your first step towards living the Regeneron Way! We have an inclusive culture that provides comprehensive benefits, which vary by location. In the U.S., benefits may include health and wellness programs (including medical, dental, vision, life, and disability insurance), fitness centers, 401(k) company match, family support benefits, equity awards, annual bonuses, paid time off, and paid leaves (e.g., military and parental leave) for eligible employees at all levels! For additional information about Regeneron benefits in the US, please visit https://careers.regeneron.com/en/working-at-regeneron/total-rewards/. For other countries specific benefits, please speak to your recruiter. Please be advised that at Regeneron, we believe we are most successful and work best when we are together. For that reason, many of Regenerons roles are required to be performed on-site. Please speak with your recruiter and hiring manager for more information about Regenerons on-site policy and expectations for your role and your location. 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) $109,900.00 - $179,300.00

Keywords: Regeneron Pharmaceuticals, Inc., Bloomfield , Proces Development Engineer III, Bioconjugation Development, Science, Research & Development , Tarrytown, New Jersey