Biologist

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* Job Title:

** Biologist

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* Location:

** Cambridge, MA

** About the Job*
* We are seeking an accomplished and highly motivated scientific leader in  
** oncology and immuno-oncology drug discovery
** to join our research organization. The successful candidate will have a strong background in cancer biology, target discovery and validation, and translational biomarker strategies, with demonstrated experience advancing innovative therapeutic concepts toward preclinical development.

This role combines  
** strategic project leadership
** with  
** hands-on laboratory work.
** The position offers the opportunity to shape early discovery programs and collaborate extensively with internal and external partners.

Join the engine of Sanofi's mission - where deep immunoscience meets bold, AI-powered research. In R&D, you'll drive breakthroughs that could turn the impossible into possible for millions.

** 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.

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* Main Responsibilities:

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* + Lead and drive oncology and immuno-oncology discovery programs, from target identification through preclinical proof-of-concept.

+ Contribute deep expertise in cancer biology, tumor immunology, and translational science, informing target selection, indication strategy, and experimental design.

+ Support the discovery and preclinical development of innovative cancer therapeutics using diverse modalities, including small-molecule inhibitors, targeted degraders, and biologics.

+ Provide scientific leadership while remaining capable of hands-on laboratory work, as needed, to directly support project teams.

+ Manage and coordinate external collaborations with CROs, academic groups, and industry partners, ensuring scientific rigor, alignment with project goals, and timely delivery.

** About You*
* Required Qualifications:

+ PhD (or equivalent) in cancer biology, immunology, molecular biology, or a related life sciences discipline.

+ Postdoctoral and industry experience in  
** cancer biology and/or immuno-oncology research** .

+ Strong track record in  
** target identification and validation** , mechanism-of-action studies, and biomarker discovery.

+ Demonstrated experience supporting  
** preclinical development
** of oncology therapeutics.

+ Highly familiar with multiple therapeutic modalities, including  
** small molecules, degraders (e.g., PROTACs), and biologics** .

+ Proven ability to  
** lead scientific projects
** while contributing experimentally when required.

+ Experience managing  
** external research collaborations
** with CROs and academic or industry partners.

+ Excellent scientific communication skills.

+ Experience working with large scale data mining, or target discovery and translation to patient.

Preferred Qualifications:

+ Prior experience advancing programs from target- development candidate.

+ Publications and/or patents in oncology or immuno-oncology research.

+ Experience working in a matrixed, cross-functional pharmaceutical research environment.

** 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.

+ Be part of a pioneering biopharma company that engages patients early in drug development and uses their insights to design studies that reflect real-world needs.

+ Help improve the lives of millions of people globally by making drug development quicker and more effective.

+ Work at the…