Principal scientist-in vivo pharmacology, Discovery and Partnerships

At a glance

Bring your curiosity to a team where deep immunoscience meets cutting-edge innovation. Across oncology, rare diseases, neurology, and vaccines, you’ll work at the intersection of lab science and AI-powered discovery — all while collaborating across boundaries to turn breakthrough ideas into real-world impact. Whether you want to deepen your scientific expertise or grow as a leader, you’ll find the opportunity here.

This job offer is accessible to all, regardless of gender.

Job title : Principal scientist-in vivo Immunology, Discovery and Partnerships

• Location: Vitry-sur-Seine
• Up to 40% Remote working
• Job type: Permanent

within our Discovery and Partnerships Team in Immunology and Inflammation Research Therapeutic Area, you’ll lead the in vivo pharmacology research activities within the Discovery and Partnerships cluster. Ready to get started?

You are an experienced immunologist and in vivo pharmacologist? Join the team supporting target validation and preclinical development of therapeutic molecules. You’ll contribute to multiple preclinical innovative projects and conduct drug discovery research experiments using in vivo and in vitro techniques of immunopharmacology, and molecular and cellular biology.

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.

Main responsibilities:

• Provide hands-on expertise and serve as in vivo pharmacology lead for research programs within the cluster
• Develop and implement new clinically-relevant mouse models of inflammatory diseases to evaluate the pharmacodynamic effect and efficacy of innovative therapeutic agents to support portfolio progression
• Identify and develop ex vivo analytical tools that can be used to maximize the read-outs from in vivo studies
• Present research findings and data to project teams
• Maintain records (including study protocols, procedures, data reports, and related documentation) and prepare reports for IND filings
• Enable productivity, execution with a sense of urgency, teamwork, accountability, scientific rigor and excellence

About you

• Experience: Ensure compliance with company established practices and maintain the highest standards of animal welfare and ethical compliance and data integrity
• Soft skills: Excellent interpersonal and impactful communication skills. Demonstrate a high level of autonomy and initiative to troubleshoot and accurately perform data analysis on in vivo studies. Self-motivated team player and fast learner with the ability to adapt in a fast-paced, dynamic and multi-disciplinary environment
• Technical skills: Proficiency and hands-on experience in technical skills to carry out efficacy, pharmacodynamic, pharmacokinetic and biodistribution studies in rodent models of autoimmunity and inflammation. Experience working with cross-functional teams. History of moving product candidates through preclinical studies to IND is desirable. Training in Animal Experimentation Designer Level valid in France
• Education: Ph.D. in Immunology, Pharmacology, or related discipline with strong expertise in in vivo pharmacology applied to immunology in academic facility or biotech or pharmaceutical industry
• Languages: English, French desirable

Why choose us?

• 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
• Work at the forefront of drug discovery, harnessing cutting-edge AI, data, and digital platforms to push the boundaries of science
• Help improve the lives of millions of people globally by making drug development quicker and more effective
• Enjoy opportunities to collaborate beyond your area of expertise, working with diverse teams across science, clinical, and digital fields to spark new ideas and drive breakthroughs
• Accelerate your professional development with structured career paths designed for both scientific and leadership advancement. Grow in ways you never imagined through bold moves that stretch your potential, cross moves into other business areas, and short-term gigs that build your scientific expertise
• Join a workplace where diversity, equity, and inclusion are at the core, with Employee Resource Groups and leadership programs that celebrate every voice
• Achieve genuine work-life balance in a supportive R&D environment
• Enjoy outstanding benefits, including flexible working options, comprehensive healthcare, and well-being programs designed to help you thrive

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