Co-op Upstream Bioprocessing & Cell Culture Development

At Regeneron, we use science and innovation to develop life-changing medicines for people with serious diseases. Regeneron is currently seeking multiple 2027 Co-ops in Upstream Bioprocessing & Cell Culture Development to join our Preclinical Manufacturing and Process Development (PMPD) team, which develops the manufacturing processes used to scale up and produce Regeneron’s medicines.

These positions offer the opportunity to contribute to a fast-growing, science-driven organization making a meaningful difference to patients worldwide.

Tarrytown, NY

Our Co-op positions are full-time and onsite from January-August (Spring-Summer), May/June-December (Summer-Fall), and August-December (Fall).

Intern and Co-op pay ranges are determined by level of education (year in school) and degree program. The hourly rate range for these locations is: $17.90-$50.90 per hour.

• Support the development and optimization of cell culture and bioreactor processes used to grow the cells that produce Regeneron’s medicines
• Design and test new feed and media strategies to improve cell growth and productivity
• Run bench-scale and pilot-scale bioreactor experiments and analyze the resulting data
• Support reagent and cell bank production activities
• Collaborate with scientists and engineers to troubleshoot process challenges
• Document experimental procedures and results to support ongoing process development
• Gain hands‑on exposure to mammalian cell culture and general laboratory technique
• Present findings and progress updates to the broader team

Chemical Engineering, Biological/Biomedical Engineering

• Must be enrolled in, or accepted to, an academic program pursuing an Undergraduate or Graduate degree (and be returning to school the semester following the position or graduating after the position)
• Must be able to commit to 40 hours per week from January-August, May/June-December, or August-December
• Demonstrated leadership in areas such as campus activities, clubs, sports, current or previous work, or within the community preferred
• Cumulative GPA of 3.0 or higher preferred

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…