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Salary
$82k – $134k per year
Location
In office (Tarrytown)
Seniority
Junior
Visa
H-1B filings in 12 months: 316 · green card filings: 4
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 11, 2026. First seen by Alion on Nov 10, 2026. Regeneron Pharmaceuticals scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Regeneron Pharmaceuticals is an American biotechnology company headquartered in Tarrytown, New York, that discovers, develops and manufactures antibody and other biologic medicines. Founded in 1988 and listed on Nasdaq, its products include the eye disease treatment Eylea, the immunology drug Dupixent developed with Sanofi, the cancer immunotherapy Libtayo and the cholesterol drug Praluent. It uses its VelociSuite mouse technologies and the Regeneron Genetics Center to find drug targets, and runs large manufacturing sites in Rensselaer, New York, and Limerick, Ireland.
Backed by GV, venBio Partners

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 within Preclinical Manufacturing & Process Development (PMPD), supporting Regeneron’s research and discovery groups in a full-time, fast-paced team environment. In this role, you will purify a diverse array of pre-clinical biological molecules to provide reagents and therapeutics, while collaborating with peers and research partners across the organization.

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/flexibility: On-site

Discover your role:

  • Purify a diverse array of proteins to support Regeneron’s research and discovery groups
  • Develop and refine purification processes for clinical use
  • Develop technology and automation to increase throughput and efficiency of preclinical manufacturing
  • Document experiments, results, and findings in an electronic laboratory notebook
  • Present your work at group and department meetings
  • Maintain instruments and troubleshoot instrument and experimental problems
  • Collaborate with peers to complete core deliverables while executing experiments independently

This role requires:

  • Bachelor’s or Master’s degree in Chemical Engineering, Biochemical Engineering, or Biochemistry with 0-2 years of experience
  • Contribute to lab equipment maintenance and safety to keep the working environment safe, effective, and efficient
  • Enjoy a fast-paced, pilot-scale laboratory where sound science and teamwork are priorities
  • Keep up with SOP training and compliance responsibilities
  • Preferred: strong fundamental understanding of protein purification techniques, and experience with downstream development
  • Preferred: experience with chromatography and filtration equipment AKTA Explorers/Avants/Pilots, chromatography columns, tangential flow filters, depth filters, HPLCs, UPLCs)
  • Preferred: experience with software (Empower, Unicorn, JMP, LIMS)

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)

$81,900.00 - $133,700.00
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