Summer-Fall 2026 Co-Op - Data and Computational Science, mRNA Center of Excellence - Vaccine

Job title: Summer-Fall 2026 Co-Op - Data and Computational Science, mRNA Center of Excellence - Vaccine
Location: Waltham, MA

About the Job
Join Sanofi’s mRNA Center of Excellence (mRNA CoE) as a Co-op in the Data and Computational Science (DCS) department, supporting the CMC Data Science group. This role focuses on developing first-principle and machine learning (ML) models for unit operations such as Tangential Flow Filtration (TFF) and Chromatography in process development.

You’ll gain hands-on experience with mRNA technology and unit operations, while applying modeling techniques in a non-GMP laboratory setting. This is a unique opportunity to contribute to cutting-edge biopharmaceutical research and innovation

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.

Main Responsibilities:

• Collaborate with your supervisor to develop first-principle and ML models for various unit operations, including TFF and Chromatography.

• Investigate the impact of process parameters on product quality attributes and quantify associated uncertainties.

• Design model-based Design of Experiments (DoE) for model structure selection and parameter optimization

About You​

Basic Qualifications:

• Currently enrolled and pursuing a bachelor's degree, master's degree, or PhD in Biology, Chemical or Biochemical Engineering, Computer Science, or a related field at an accredited college or university with the expectation that you will complete your current degree by the Spring of 2028

• 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 be authorized to work in the US for the duration of the co-op 
   

Preferred Qualifications:

• Foundational knowledge of mRNA technology.

• Experience with ML, first-principle, or hybrid dynamic modeling.

• Familiarity with mathematical and modeling tools such as Python (scikit-learn), Julia, MATLAB, PYOMO, or gPROMS.
   

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.

• Exposure to cutting-edge technologies and research methodologies. 

• Networking opportunities within Sanofi and the broader biotech community.

The salary range for this position is ​$29-$60 hourly​. All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs. Additional benefits information can be found through LINK.​

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; marita