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Process Development Engineer I

Regeneron
Tarrytown, NY Posted Sep 25, 2026
On-siteUSD 80,300 - 131,100 / year

About this role

Process Development Engineer I

Process Development Engineer I

Locations: Tarrytown, NY Time type: Full time

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 Purification Development group, supporting our Preclinical Manufacturing & Process Development (PMPD) organization in Tarrytown, NY in an on-site work model. In this role, you will lead purification process development and support purification of a variety of pre-clinical biological molecules, providing critical reagents for Regeneron's research and discovery groups, while collaborating with internal manufacturing sites on technology transfers.

This position offers the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

Discover your role:

  • Perform purification process development supporting pre-clinical biological molecules.
  • Document experiments, results, and findings in the electronic laboratory notebook.
  • Read and interpret scientific literature and technical documentation; execute experimental plans to verify findings and compare internal data to published research for manager review.
  • Maintain laboratory instruments and troubleshoot instrumental and experimental problems.
  • Develop technology that increases process throughput and efficiency for preclinical manufacturing, supporting broader improvement initiatives.
  • Present work and findings at group and department meetings.
  • Build relationships within the subgroup to support shared goals; train peers and guide co-op students and interns.
  • Proactively support colleagues in executing experiments and know when to ask for help.

This role requires:

  • Bachelor's or Master's degree in a relevant scientific or engineering field and 2 years of experience.
  • Hands-on experience with laboratory purification techniques and equipment.
  • Ability to read, interpret, and apply scientific literature and technical documentation.
  • Strong troubleshooting skills for laboratory instruments and experimental issues.
  • Effective communication and collaboration skills in a team-based, fast-paced environment.
  • Contribute to lab equipment maintenance and safety to help create a safe, effective, and efficient working environment.
  • Anticipate and recognize potential problems with laboratory supplies and equipment, acting to prevent and resolve them.
  • Initiative and drive to complete ambitious tasks and learn new technologies.

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

About Us

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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