> Markdown version of [/jobs/ext/4598262-staff-software-engineer](https://www.wearedevelopers.com/jobs/ext/4598262-staff-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Staff Software Engineer

- **Company:** Sanofi
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Automation of Tests, Microsoft Azure, C++ (Programming Language), Cloud Computing, Cyber Security, Continuous Integration, DevOps, Python (Programming Language), Node.Js, Object-Oriented Software Development, Software Engineering, TypeScript, Datadog, ReactJS, Grafana, Backend, Infrastructure Automation Frameworks, Information Technology, Api Design, Microservices
- **Published:** November 6, 2026
- **Apply:** https://www.adzuna.es/details/5954153024

## About the Role

* Experience: Proven track record leading technical initiatives and mentoring senior engineers in fast-paced, innovative environments
 * Technical skills: 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
 * Soft skills: Strong communicator and collaborative leader who can influence peers and leadership alike; growth mindset with a passion for innovation and learning
 * Education: A background in Computer Science, Engineering, or equivalent practical experience
 * Languages: Fluent English (written and verbal)

## Description

Location: Barcelona, Spain* About the Job As Staff Software Engineer within our Global eCommerce Software Engineering team, you'll shape the technical future of a $7 billion global business connecting patients and healthcare professionals to life-changing medicines and vaccines. Ready to get started? 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 At Sanofi, we believe our people are our greatest strength, and we are committed to creating an inclusive environment where diverse perspectives drive innovation. Our values - Aim Higher, Act for Patients, Be Bold, and Lead Together - guide everything we do Main responsibilities

 * 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
 * Bridge engineering, product, and business teams, ensuring technical direction aligns with organizational goals and delivers real impact for patients
 * Represent engineering in conversations with external partners and vendors, advocating for sound technical standards