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mRNA Analytical Sciences - Vaccines Summer-Fall Co-op
At a glance
Early Careers at Sanofi aren’t just about landing a role – they’re about starting a journey that stretches you from day one. You’ll dive into projects that matter, surrounded by people who challenge, mentor, and inspire you to explore more every step of the way.
Here, you can navigate paths across science, digital, manufacturing, and business – following your curiosity, growing your expertise, and building skills for tomorrow. With AI-powered tools, world-class learning, and a culture rooted in collaboration, we give you the opportunity to develop your expertise and transform our future.
Job Title: mRNA Analytical Sciences - Vaccines Summer-Fall Co-op
Location: Waltham, MA
About the Job
Join the team protecting half a billion lives every year with next-gen science, mRNA innovation, and AI-driven breakthroughs. In Vaccines, you’ll help advance prevention on a global scale - and shape the future of immunization.
At Sanofi, we chase the miracles of science, and we know mRNA has a role to play in the future of health. And while the pandemic has shaken up our industry, creating new opportunities and risks, we believe the acceleration of innovation with mRNA technology means vaccines and treatments for more people faster than before.
That’s why we’re looking for bold, optimistic world-changers to join our mRNA Center of Excellence. We’re investing €400m a year into the new Center, hiring a team of 450 dedicated employees, and focusing on implementing an integrated end-to-end mRNA vaccine capabilities and research platform with R&D, digital and CMC teams.
Bring your ambition and optimism and join us on our journey to discover and deliver transformative medicine to patients through the advancement of our cutting-edge mRNA technology!
As an mRNA co-op student in Analytical Sciences, you will ensure laboratory activities in support of process development and industrialization and ensure the characterizations of mRNA vaccines in development.
About Sanofi:
We’re an R&D-driven, AI-powered biopharma company committed to improving people’s lives and delivering compelling growth. Our deep understanding of the immune system – and innovative pipeline – enables us to invent medicines and vaccines that treat and protect millions of people around the world. Together, we chase the miracles of science to improve people’s lives.
Main Responsibilities:
In this position you may perform the following duties:
Perform mRNA vaccine analytical testing in the lab, data analysis, and related document writing with a critical look at the relevance of the results.
Perform sample preparation following existing SOPs or analytical procedures.
Perform Western blot development, optimization, qualification, and testing.
Perform mammalian cell culture and transfections.
Perform ELISA development, optimization, and testing
Perform Flow cytometry and ddPCR testing
Perform data analysis, and related document writing with a critical look at the relevance of the results.
Develop and write work plans/protocols.
Summarize and communicate the progress of your work.
Participate in laboratory automation to set up high-throughput analyses.
Accompany and train newcomers in analytical technologies and methods.
Participate laboratory organization activities (orders, management/maintenance of equipment, reception & verification of reagents and receipt of samples).
Compliant to Sanofi Quality standards and HSE policy. Participate in continuous improvement of laboratory safety and quality compliance.
About You
Basic Qualifications:
Currentlyenrolled andpursuing a PhD in biology, biochemistry, or biotechnology or related field with the expectation that you will complete your current degree by the Spring of 2029.
Must be enrolled in an accreditedcollege or university throughout the duration of the co-op/internship
Must be able torelocateto the office location and work 40hrs/week, Monday-Friday, for the full duration of the co-op/internship
Practical experience or knowledge of some of the biological and biochemical analytical techniques (Western blot, cell culture, transfections, ELISA, qPCR, ddPCR, flow cytometry, and others...)
Hands-on experience with mammalian cell culture
Hands-on experience in high-throughput automation
Interest in digital transformation and automation
Must be permanently authorized to work in the U.S. and not require sponsorship of an employment visa (e.g., H-1B or green card) at the time of application or in the future. Students currently on CPT, OPT, or STEM OPT usually require future sponsorship for long term employment and do not meet the requirements for this program unless eligible for an alternative long-term status that does not require company sponsorship
Preferred Qualifications:
Good professional writing skills
Essential qualities include ability to work in a fast paced, matrix environment; agility to respond to urgent requests, and initiative to lead new tasks.
Adherence to Quality and HSE aspects.
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, whetherit’sthrough a promotion or lateral move, at home or internationally.
Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact.
Exposuretocutting-edgetechnologies and research methodologies.
Networking opportunities within Sanofi and the broader biotech community.
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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Pursue Progress. Discover Extraordinary.
Join Sanofi and step into a new era of science - where your growth can be just as transformative as the work we do. We invest in you to reach further, think faster, and do what’s never-been-done-before. You’ll help push boundaries, challenge convention, and build smarter solutions that reach the communities we serve. Ready to chase the miracles of science and improve people’s lives? Let’s Pursue Progress and Discover Extraordinary – together.
At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, protected veteran status or other characteristics protected by law.
Watch 'One day at Sanofi' and check out our Diversity Equity and Inclusion initiatives at sanofi.com
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Why work with us
- Shape your own journey. At Sanofi, diverse perspectives fuel bold thinking – and your path is yours to define. Whether through internships or graduate programs, you’ll explore more and build the future-ready skills that take your potential to the next level.
- Grow with the best. You’ll learn from experts across science, tech, manufacturing, and business – collaborating as one team on challenging projects that stretch you.
- Be empowered by innovation. With AI-powered tools, fresh ideas, and the freedom to be curious, you’ll partner with colleagues who turn challenges into breakthroughs – and help reimagine what’s possible.
- Make an impact from day one. Your work matters. You’ll shape solutions, contribute to an inclusive, sustainable future, and experience what it means to say: This is how we Sanofi.
This is how we Sanofi
Building international networks, empowering career growth, and innovating through smart risks. This is how we innovate. This is how we transform healthcare. This is how we Sanofi.
Join us in improving lives for patients, partners, communities, and colleagues.
"We’re transforming Early Careers at Sanofi — with a clear mission to empower the next generation of healthcare leaders with the skills of tomorrow. Here, you’ll find bold and meaningful experiences that fuel your growth, ignite your potential, and enable you to make an impact from day one."
Andrew Sharp
Global Head of Early Careers
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