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Job Title: Senior Scientist - Cell & Molecular Biology 

Location:Cambridge, MA

About the Job

Sanofi Intrépide Research Laboratories is an innovative initiative identifying and advancing breakthrough science, technology, and business opportunities critical to our pipeline strategy. Operating globally with sites in the US and China, we foster an entrepreneurial culture where scientific excellence drives decision-making. Our agile teams work collaboratively to accelerate the delivery of high-impact therapeutics through efficient execution and creative problem-solving. With an operating model based on start-up biotech companies, Intrepide US is validating emerging biology, technology and molecules, incubating novel mechanisms of action and approaches, and removing key scientific and technological barriers to unlock value creation.

Join our dynamic US Core Team to develop and implement cellular models that recapitulate human disease biology. This role combines hands-on cell biology expertise with strategic project leadership to accelerate therapeutic discovery through physiologically relevant disease models.

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.

Main Responsibilities:

• Internalize, design and/or establish in vitro and ex vivo cellular models that reflect aspects of human disease pathophysiology, with a focus on immune-mediated diseases, and use to evaluate therapeutic candidate efficacy and mechanism-of-action.

• Implement advanced cell culture techniques including 3D cultures, co-cultures, and patient-derived systems, with multi-omic, imaging and other read-outs.

• Establish and validate cellular biomarker assays for translational research applications.

• Develop and maintain cell biology laboratory capabilities, including equipment procurement and protocol standardization.

• Collaborate with CROs to implement and transfer cellular model protocols.

• Interface cross-functionally with research teams to integrate cellular biology data into therapeutic development decisions.

About You

Required Qualifications:

• Bachelor's + 8 years in biopharma OR

• Master's + 5 years in biopharma OR

• Ph.D. + 3 years post-doctoral in biopharma industry experience with demonstrated expertise in cell and molecular biology techniques.

• Strong track record of using disease-relevant cellular systems

• Experience with multi-omics, cellular imaging, flow cytometry, and/or high-content analysis.

• Project management experience including timeline and budget oversight.

Preferred Qualifications:

• Experience with primary human immune and other cells and/or iPSC-derived cellular models.

• Experience with CRISPR-based genomic engineering.

• Expertise in single-cell sequencing technologies.

• Experience managing CRO relationships for cellular & molecular biology work.

• Equipment procurement and cell & molecular biology lab setup experience.

• Demonstrated scientific creativity and innovation.

Core Competencies:

• Deep understanding of cellular & molecular biology applied to human disease mechanisms.

• Strong analytical and data interpretation skills.

• Excellence in written and verbal communication of complex biological data.

• Ability to work effectively in a fast-paced, collaborative environment.

• Entrepreneurial mindset with calculated risk-taking ability.

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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All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs, and additional benefits information can be found here.

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