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**Job Title:** mRNA Process Modeling Senior Scientist- Vaccines

**Location:** Waltham, MA

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.

The Senior Scientist – Process Modeling is part of the Data and Computational Science (DCS) department within the Sanofi mRNA Center of Excellence (CoE), supporting the CMC Data Science Group. This role centers on developing multiscale mechanistic and machine learning models to investigate the formation and production of lipid nanoparticles (LNPs) for nucleic acid therapeutics.

This is a unique opportunity to gain hands-on experience with mRNA technologies and unit operations, while showcasing the power of mechanistic, hybrid, and machine learning models in a non-GMP laboratory setting.

Are you ready to shape the future of medicine? The race is on to speed up drug discovery and development to find answers for patients and their families. Your skills could be critical in helping our teams accelerate progress.

Main Responsibilities:

+ Develop multiscale mechanistic, hybrid, and machine learning models for LNP formation and production.

+ Apply models to design, optimize, and characterize LNP manufacturing processes.

+ Lead and implement model-based strategies to accelerate process development across Sanofi.

+ Communicate progress through technical presentations and detailed reports to cross-functional stakeholders.

+ Present and publish research findings at scientific conferences and in peer-reviewed journals.

About You:

+ Earned PhD in Chemical Engineering, Mechanical Engineering, Bioengineering, or related engineering or modeling field, with 1 or more years of relevant experience in academia or industry.

+ Strong understanding of mRNA unit operations, including LNP production is essential. Experience with in vitro transcription is highly preferred.

+ Proficiency in modeling and data analysis tools such as Python, Julia, MATLAB, gPROMS, and CFD software (e.g., COMSOL, Fluent, M-Star) is needed

+ Demonstrated record of scientific publications and conference presentations is required. Publications/presentations focused on LNPs, especially those involving computational or modeling approaches, is the preference.

+ Excellent communication skills in a collaborative, international environment.

+ Experience with machine learning and hybrid modeling techniques is ideal.

+ Expertise in multiscale modeling, numerical algorithms for transport equations, and population balance models is also preferred.

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 a 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.

\#GD-SP

\#LI-SP

\#LI-Onsite

\#vhd

\#mRNA

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.

_North America Applicants Only_

The salary range for this position is:

$100,500.00 - $145,166.66

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 the LINK (https://benefits.sanofiusallwell.com/fleet/public/index/ba511bf8-5c32-4828-9861-ab985fffab90/?cid=sanofi) .

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)