As Staff Software Engineer within our Global eCommerce Software Engineering team, you'll shape the technical future of a $7 billion integral business connecting patients and healthcare professionals to life-changing medicines and vaccines. Based within Sanofi's Digital Global eCommerce & Vaccines organization, you'll work at the intersection of business and technology — partnering with cross-functional teams to revolutionize how patients access Sanofi's medicines worldwide. This role reports directly to the Head of Software Engineering, eCommerce. From customer onboarding to shipment delivery, you'll set the technical bar for the entire organization and amplify the impact of the engineers around you

About Sanofi
Sanofi is dedicated to supporting people through their health challenges. We are a global biopharmaceutical company focused on human health, committed to chasing the miracles of science to improve people's lives. Our team, across some 100 countries, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the center of our ambitions
Drive technical strategy across multiple teams and domains, designing scalable,



resilient architectures for global eCommerce platforms — from customer-facing experiences to backend operations
Own critical technical decisions , balancing engineering excellence with pragmatism to deliver high-quality solutions on time
Champion best practices in cloud-native development, microservices, APIs, CI/CD, DevOps, and cybersecurity across the organization
Mentor and grow senior engineers , fostering a culture of knowledge sharing, psychological safety, and continuous improvement
Experience: Proven track record leading technical initiatives and mentoring senior engineers in fast-paced, innovative environments
Proficiency in JavaScript/TypeScript (Node.js), React or equivalent, and an object-oriented language (Java, Python, C++, or similar); hands-on experience with cloud platforms (AWS, GCP, or Azure), Infrastructure as Code, microservices, API design, CI/CD, observability tools (e.g. DataDog), and automated testing
A background in Computer Science, Engineering, or equivalent practical experience
Fluent English (written and verbal)

Global impact at scale — your work will directly support patients and healthcare professionals worldwide
Cutting-edge technology — work with modern cloud-native stacks on a platform that is actively being transformed
LI-Hybrid #BarcelonaHub #SanofiHubs

📌 Staff Software Engineer Hybrid (Barcelona)
🏢 Empresa reconocida
📍 Barcelona