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.

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Job Title: Accelerator Staff Software Engineer

• Location: Lyon

• Hybrid: 60% office based, 40% remote

• Permanent, Fulltime

About the job 

Help bring new medicines to patients faster. As a Staff Software Engineer in our Manufacturing & Supply (M&S) Accelerator, you’ll set technical direction across multiple teams, proactively remove blockers, build scalable and reliable platforms, and coach engineers to deliver with speed, quality, and compliance. This role is ideal for a hands-on leader who drives change with user outcomes in mind. 

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: 

Scope & impact: 

• Serves as a technical leader and role model within the engineering organization
• Shapes technical direction for complex systems and ensures scalable, maintainable architectures
• Leads initiatives that impact multiple teams and domains across the M&S Accelerator
• Identifies leverage points to unlock exponential productivity gains for the organization

Prioritization & execution: 

• Owns technical decisions for critical projects, ensuring delivery on deadlines and quality standards
• Anticipates challenges and proactively resolves bottlenecks 
• Works across teams to align execution with organizational strategy and priorities
• Balances pragmatism with technical excellence to accelerate delivery 
• Ensure data-driven decision-taking 

Technical excellence:

• Designs and builds robust software solutions for research workflows and data analysis
• Establishes and enforces technical standards, patterns, and best practices across teams
• Develops deep expertise in cloud-native systems, microservices, APIs, and security
• Champions CI/CD, DevOps principles, and cloud infrastructure as code

Coaching & mentorship: 

• Mentors senior engineers, enabling them to take on greater ownership and leadership
• Promotes a culture of engineering excellence, knowledge sharing, and innovation
• Encourages open dialogue where team members feel safe to share ideas and learn from mistakes
• Contributes to talent growth by participating in hiring and career development

Leadership & collaboration: 

• Acts as a bridge across engineering, product, and scientific teams to ensure alignment and results
• Advocates for best engineering practices and drives adoption across domains
• Collaborates with peers and leaders to shape technical strategy for the Accelerator
• Represents engineering in discussions with external partners and vendors

About you

Soft & behavioral skills: 

• Strong problem-solving and critical thinking skills
• Service-oriented, flexible, and a team player who takes initiative
• Excellent written and verbal communication in English
• Growth mindset with enthusiasm for learning new technologies and approaches
• Innovation-focused with a willingness to experiment and introduce improved ways of working
• Collaborative leadership that fosters inclusivity and innovation

Your background:

• Significant experience in software engineering (or equivalent knowledge). If you feel qualified, apply regardless of years of experience 
• Bachelor’s degree in Computer Science, Engineering, or equivalent experience is a plus
• Experience in an innovative, fast-paced environment
• Proven track record of leading technical initiatives and mentoring senior engineers

Technical requirements:

• Experience in JavaScript / TypeScript (Node.js) 
• Experience in React or similar frameworks 
• Proficiency with CI/CD practices and modern DevOps principles
• Proficiency with microservice architectures, API design, and cloud security best practices
• Infrastructure as Code (Terraform, AWS CDK, or similar) with experience in one or more of the major cloud providers (AWS, GCP, or Azure) 

About Manufacturing & Supply (M&S)  

At Sanofi, we’re committed to transforming the practice of medicine through breakthrough science. Within Sanofi, Manufacturing & Supply (M&S) is the bridge between Science and Patients, ensuring all patients get their dose reliably, that new medicines are launched faster to cover unmet needs and that they can be delivered affordably across the globe. At Sanofi we are convinced that Manufacturing is, and must in the future increasingly be, a competitive advantage and that digital unlocks every next step in that journey.   

Imagine working in a vibrant startup environment, right in Lyon's bustling city center We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. Digital & Data are at the heart of Sanofi: our ambition is to be the leading digital healthcare platform to develop & deliver medicine faster, enable healthcare professionals to improve treatments, and help patients improve their health.

Ready to get started?  

Why choose us? 

• We provide a highly collaborative environment, with an opportunity to work with a world class team
• Contribute to a company that is not only a leader in healthcare but also a pioneer in digital transformation, shaping the future of global health
• 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
• Play an instrumental part in creating best practice within our manufacturing facility

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.

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 and check out our Diversity Equity and Inclusion actions at sanofi.com