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Process Development Engineer I - Synthetic and Bioconjugation Scale-Up Technologies (SBST)

BioSpace
Tarrytown, NY Contractor
POSTED ON 5/25/2026
AVAILABLE BEFORE 6/22/2026
We are seeking a Process Development Engineer I to join our Synthetic and Bioconjugation Scale-up Technologies (SBST) group as a part of our Preclinical Manufacturing & Process Development (PMPD) department. In this exciting new role, you will develop manufacturing processes for the production of synthetic small-molecules used in Regenerons diverse range of therapeutic modalities. You would work in close collaboration with cross-functional teams performing chemical process development and optimization using the principles of Quality by Design (QbD) to deliver 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) to ensure timely and reliable entrance to the clinic and eventual commercialization.

A typical day in the role of a Process Development Engineer I might include:

  • Working at the bench to design and develop scalable, robust and controlled GMP-ready processes for synthetic small molecules.
  • Collaborating with analytical groups within or outside the organization to establish supportive analytical characterization of synthetic intermediates and final products.
  • Discussing plans and data in multi-functional teams to evaluate processes and determine developmental goals and ensure integrated program success.
  • Proactively complying with 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 synthetic chemical processes including reaction parameters, 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 synthetic 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 process chemistry 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 4 years relevant experience or Masters 0-3 years relevant experience in active pharmaceutical ingredient (API) process development. Experience with small-molecules in the bioconjugates space will be highly preferable. Hands-on experience with organic molecule synthesis and characterization tools such as mass spectrometry, nuclear magnetic resonance (NMR), infrared (IR) spectroscopy, high-performance liquid chromatography (HPLC) etc. is preferred. Candidate must be well-versed with purification techniques such as crystallization, extraction, chromatography etc. Proven experience in scaling-up synthetic small-molecule reactions and technology transfer to a GMP manufacturing facility is a plus. Experience in handling highly potent compounds using appropriate containment and bestpractice procedures is a plus. Candidate should be well-versed with International Council for Harmonization (ICH)/regulatory guidelines and their impact on process development of synthetic molecules and bioconjugates. Experience in working with cross-functional Chemistry, Manufacturing and Control (CMC) teams and experience in authoring publications, reports, tech transfer documents, regulatory support documents, patents is a plus.

#pmpd

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)

$80,300.00 - $131,100.00

Salary : $80,300 - $131,100

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