**Job Title:** Winter, Spring 2026 Co-op-Intern - MSAT - Data Science - Process Modeling **Location:** Cambridge, MA **About the Job** We deliver 4.3 billion healthcare solutions to people every year, thanks to the flawless planning and meticulous eye for detail of our Manufacturing & Supply teams. With your talent and ambition, we can do even more to protect people from infectious diseases and bring hope to patients and their families. MSAT Process Data Science & Digital Transformation (MSAT DSD) is a transversal team within the Global MSAT organization. MSAT DSD is the data/digital DNA within the processes allowing us to ensure best in class manufacturing & analytical processes, especially by focusing on data/digital innovations & excellence, aiming to guarantee acceleration and securing launches & improvement as well as sustainability for our current processes.  This position will fall within the DSD Mechanistic Modeling & Process Control team. The group develops and implements advanced process modeling and technologies (e.g. CFD, Digital twins, PAT) to enable Sanofi to better understand, monitor, and control the manufacturing operations, and deliver innovative, robust, and cost-effective next-generation processes. The group is highly cross functional in its interactions across R&D and manufacturing, and provides scientific, technical, process engineering expertise to these organizations. We are seeking a motivated and technically skilled co-op/intern to join our DSD Mechanistic Modeling & Process Control to support advanced modeling and harmonization initiatives in process development. This role offers a unique opportunity to gain hands-on experience in Computational Fluid Dynamics (CFD) using M-Star and/or ANSYS Fluent, contribute to standardization and harmonization efforts, and support mechanistic and Process Analytical Technology (PAT) modeling across multiple projects. We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. We’re also a company where you can flourish and grow your career, with countless opportunities to explore, make connections with people, and stretch the limits of what you thought was possible. Ready to get started? **Main Responsibilities** : + Assist with the setup, execution, and analysis of simulations using Computational Fluid Dynamics (CFD) and related modeling tools. + Contribute to harmonization and standardization activities, including documentation, tool development, and best practice consolidation across modeling workflows. + Support mechanistic modeling initiatives for bioprocessing or pharmaceutical unit operations, including model calibration, validation, and sensitivity analysis. + Collaborate on PAT modeling activities, including data integration, model development, and deployment to support real-time monitoring and control strategies. + Document and present findings to cross-functional teams in a clear and concise manner. **About You** **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** **Basic Qualifications:** + Currently enrolled and pursuing a bachelor’s, degree, master’s degree, or PhD degree in data science, computational mathematics, computer science or 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 + Programming/scripting experience (e.g., Python, MATLAB, or similar) for data analysis and model development. + Experience working with data visualization tools or dashboards. + Basic understanding of mechanistic modeling in the context of chemical/biochemical processes. **Preferred Qualifications:** + Familiarity with CFD tools—preferably M-Star; experience with ANSYS Fluent is a plus. + Solid understanding of transport phenomena, fluid dynamics, and mixing principles. + Exposure to PAT concepts and tools is a plus. + Strong analytical, communication, and organizational skills. + Self-motivated, detail-oriented, and able to work independently and in a team environment. + Familiarity with bioprocesses or pharmaceutical unit operations. **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. + Exposure to cutting-edge technologies 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. \#GD-SP ​ \#LI-SP \#LI-Onsite \#vhd **Pursue** **_progress_** **, discover** **_extraordinary_** Better is out there. Better medications, better outcomes, better science. But progress doesn’t happen without people – people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. So, let’s be those people. At Sanofi, we provide equal opportunities to all regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity. Watch our ALL IN video (https://www.youtube.com/watch?v=SkpDBZ-CJKw&t=67s) and check out our Diversity Equity and Inclusion actions at sanofi.com (https://www.sanofi.com/en/our-responsibility/equality-and-inclusiveness) ! _US and Puerto Rico Residents Only_ Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally inclusive and diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; natural or protective hairstyles; 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. Global Terms & Conditions and Data Privacy Statement (https://www.sanofi.com/en/careers/global-terms-and-conditions/) Sanofi is dedicated to supporting people through their health challenges. We are a global biopharmaceutical company focused on human health. We prevent illness with vaccines, provide innovative treatments to fight pain and ease suffering. We stand by the few who suffer from rare diseases and the millions with long-term chronic conditions. With more than 100,000 people in 100 countries, Sanofi is transforming scientific innovation into healthcare solutions around the globe. Discover more about us visiting www.sanofi.com or via our movie We are Sanofi (https://youtu.be/96EwNjb1TLo) As an organization, we change the practice of medicine; reinvent the way we work; and enable people to be their best versions in career and life. We are constantly moving and growing, making sure our people grow with us. Our working environment helps us build a dynamic and inclusive workplace operating on trust and respect and allows employees to live the life they want to live. All in for Diversity, Equity and Inclusion at Sanofi - YouTube (http://www.youtube.com/watch?v=SkpDBZ-CJKw&t=2s)