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Research and Development

R&D
Where your curiosity drives the
miracles of
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Section Lead - Operational Excellence Leader

Vitry-sur-Seine, France
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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.

Le contenu du poste est libellé en anglais car il nécessite de nombreuses interactions avec nos filiales à l’international, l'anglais étant la langue de travail. 

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

Job title:Section Lead - Operational Excellence Leader

  • Location: Vitry sur Seine, France

About the job

As a Section Lead - Operational Excellence Leader within our Drug Substance Manufacturing - Biologics team, you'll drive innovation and lead major projects in GMP Manufacturing. Ready to get started?

Drug Substance Manufacturing - Biologics part of the CMC Mammalian Platform is located in Vitry R&D. This GMP Unit is in charge of the early clinical supply of API derived from mammalian cells along with the manufacturing testing and storage of Mammalian & GMU cell banks.

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: 

  • Drive innovation translation in GMP Manufacturing
  • Lead major CAPEX projects and ensure on time/on budget execution of all investments
  • Develop and drive a manufacture performance improvement plan and associated Dashboard & KPI
  • Contribute to the strategic capacity plan

About you

  • Experience: Minimum of 5 years of experience in operational excellence or continuous improvement roles within the pharmaceutical or biotechnology industry. Proven track record in leading and implementing successful improvement projects in GMP manufacturing environments. Experience with Lean Six Sigma methodologies and tools. International experience in Biotech company
  • Soft and technical skills: Technical background in bioprocess equipment design, GMP expertise. Excellent project management and leadership abilities. Effective communication and presentation skills
  • Education: PhD or Master's degree in Biotechnology
  • Languages: Fluency in French and English

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

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. 


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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

Apply now
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Why work with us

  • Expand your horizons. Grow through curiosity, with support to move, learn, and lead in a culture that champions mentorship, mobility, and bold development.

  • Accelerate results with technology. Harness the power of AI and automation to push scientific boundaries and reimagine what's possible in drug discovery.

  • Impact through inclusive innovation. Help deliver better science and fairer outcomes by driving inclusive research that reaches more people, in more meaningful ways.

  • Turn patient needs into breakthrough science. Drive scientific breakthroughs that start with patient needs – and end in treatments that change lives.

Meet Nils Libert, Associate Scientist

Meet Nils Libert, an Associate Scientist in Belgium, where he plays a key role in advancing groundbreaking research. Learn how his work helps drive innovation, uncover new scientific possibilities, and contribute to life-changing treatments that impact patients around the world.

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"At Sanofi, we are building an R&D engine powered by the best science, digital innovation, and a commitment to transforming the lives of patients around the world."

Houman Ashrafian

EVP & Head of R&D

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