
Manufacturing and Supply
Where the
miracles of
science are made
a reality for patients
Summer 2025 Intern - Vaccine
At a glance
Our teams produce and deliver over 4 billion units of medicines and vaccines every year, ensuring every breakthrough gets to the people who need it most.
Our state-of-the-art facilities, AI-powered smart factories, and cutting-edge automation are redefining what’s possible: ensuring treatments reach patients faster, safer, and more sustainably than ever before. This is where your skills, ambition, and passion can shape the future of healthcare.
About the Job
We are an innovative global healthcare company that helps the world stay ahead of infectious diseases by delivering more than 500 million vaccine doses a year. Across different countries, our talented teams are exploring new technologies to protect people and promote healthy communities. We chase the miracles of science every single day, pursuing progress to make a real impact on millions of patients around the world.
Student shall be mentored by Sanofi scientist in upstream processes. Will work closely with other members of the department to share knowledge and competencies encouraging individual growth.
Technical contributor in the fermentation area for troubleshooting and assist with investigations required for the completion of project deliverables. Expand data analyses of complex system and learn to take courses of action that lead to resolution of roadblocks. Maintain up to date knowledge in technological advancements and regulatory trends applicable to the area of expertise. Propose applications of new technologies to currently existing platforms to improve productivity, throughput, purity, quality and/or compliance.
**At this time, Sanofi will not sponsor a new applicant for employment authorization or offer any immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, or another type of work authorization). **
About you
Basic Qualifications:
Currently pursuing a bachelor's degree in Engineering, health sciences, information technology, or other STEM related field at an accredited college or universitywith the expectation that you will complete yourcurrent degreeby the Spring of 2027
Must be enrolled in school the semester following your internship/co-op with Sanofi.
Must be able to relocate to the office location and work 40hrs/week, Monday-Friday, for the full duration of the co-op/internship
Must have permanent US work authorization
Preferred Qualifications:
Demonstrated leadership skills and the desire and ability to work effectively in a team environment
Advanced knowledge of MS Office including Excel, PowerPoint and Word
Excellent communication and interpersonal skills
Adaptability in a changing and challenging environment
Strong organizational skills, attention to detail and analytical skills
Desire to learn about Pharmaceutical and Vaccine production
Why Choose Us?
Bring the miracles of science to life alongside a supportive, future-focused team.
Discover endless opportunities to grow your talent and drive your career, whether it’s through a promotion or lateral move, at home or internationally.
Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact.
Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, prevention and wellness programs and at least 14 weeks’ gender-neutral parental leave.
Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; marital, domestic partnership or civil union status; sex, gender, gender identity or expression; affectional or sexual orientation; disability; veteran or military status or liability for military status; domestic violence victim status; atypical cellular or blood trait; genetic information (including the refusal to submit to genetic testing) or any other characteristic protected by law.
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Why work with us
- We’re problem-solvers and pioneers. United by the belief that everyone deserves a healthier future. We create best-in-class vaccines that prevent disease and protect lives.
- Innovation drives us. From AI and mRNA to next-gen science, we push the boundaries to deliver first- and best-in-class vaccines for infectious diseases worldwide.
- Growth happens here. With bold investments in R&D and world-class facilities, Sanofians across the entire vaccine lifecycle are shaping the future of global health.
- We do what’s right. Sustainability and DE&I drive our positive global impact—because the diverse communities Sanofians represent are the patients we serve.
All-in on diversity
At Sanofi, diverse perspectives fuel the best solutions for patients. Hear from Monique Vessey, our Supply Chain Transformation Leader, on how her background shapes her approach to delivering life-changing medicines.

"Manufacturing and Supply is the bridge between the science that happens in research laboratories and the people and communities we serve."

Brendan O’Callaghan
Executive Vice President of Manufacturing and Supply
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