Jobs / Spain / Sanofi US Services INC
Data and AI Software Engineer Specialist
Sanofi US Services INC · 🌍 Barcelona
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About the role
• Location: Barcelona, Spain About the Job As Data and AI Software Engineer Specialist within our OneMesh Platform team , you'll build the software and application layer that connects people to the power of data and AI across Sanofi. Join Sanofi's Digital Data Team on our journey to become an AI-first organization. We're building the next generation of data and AI platform services — from internal developer tools and data platform interfaces to AI-powered applications and governance tooling. Working on a leading-edge tech stack with world-class mentorship, you'll contribute to products deployed globally that directly impact millions of lives. Our hybrid working model combines remote flexibility with collaborative office-based work, and our team culture is data-obsessed, impact-driven, and focused on delivering solutions that reach across the world with the best possible societal outcomes. 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 • Build full-stack applications and platform services across the OneMesh ecosystem using React, TypeScript, Node.js, and Python (FastAPI) — from data platform UIs and internal developer tools to AI-powered applications and operational dashboards • Design and maintain robust APIs (REST and GraphQL) that enable internal teams to discover, manage, and interact with data and AI capabilities, integrating cleanly into broader Sanofi digital products • Implement AI and GenAI application patterns including LLM APIs, Retrieval-Augmented Generation (RAG), agent orchestration, and evaluation frameworks, building reusable platform primitives that help other teams build faster and safer • Deploy and operate cloud-native applications on OpenShift (Kubernetes) and AWS, following GitOps best practices and contributing to infrastructure-as-code using Terraform • Champion production-readiness and observability by implementing security controls, audit logging, health checks, metrics dashboards, and alerting to ensure platform services are reliable, debuggable, and operationally sound • Build and maintain CI/CD pipelines to enable fast, reliable, and automated delivery, while contributing to code reviews, architectural discussions, and engineering standards • Collaborate across cross-functional teams — partnering with data engineers, ML practitioners, product teams, and business stakeholders to translate platform capabilities into polished, user-friendly features About you • Education: Bachelor's degree or equivalent experience in Computer Science, Engineering, or a related field • Experience: Proven track record of building software products, backend systems, platform services, or cloud-native applications; experience in internal platform teams, product engineering, or data-driven application development is a strong plus • Technical skills: Strong command of Docker, Kubernetes/OpenShift, Python (FastAPI), Terraform, React, Node.js, and TypeScript; familiarity with AWS services (Lambda, API Gateway, ECS, RDS,