Barcelona, SpainAbout the JobAs 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.

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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 SanofiSanofi 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.

Main responsibilitiesBuild 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 dashboardsDesign 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 productsImplement 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 saferDeploy and operate cloud-native applications on OpenShift (Kubernetes) and AWS, following GitOps best practices and contributing to infrastructure-as-code using TerraformChampion 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 soundBuild and maintain CI/CD pipelines to enable fast, reliable, and automated delivery, while contributing to code reviews, architectural discussions, and engineering standardsCollaborate across cross-functional teams — partnering with data engineers, ML practitioners, product teams, and business stakeholders to translate platform capabilities into polished, user-friendly featuresAbout youEducation: Bachelor's degree or equivalent experience in Computer Science, Engineering,



or a related fieldExperience: 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 plusTechnical skills: Strong command of Docker, Kubernetes/OpenShift, Python (FastAPI), Terraform, React, Node.js, and TypeScript; familiarity with AWS services (Lambda, API Gateway, ECS, RDS, Bedrock), Snowflake, PostgreSQL, Redis, message brokering, CI/CD (GitHub Actions), and GenAI/LLM application patterns is a meaningful advantage Mindset: Excellent communicator in English who can translate complex technical concepts for non-technical stakeholders and enjoys working across diverse, cross-functional teamsWhy choose us? Make a real impact — build tools and platforms that directly improve and save lives at a integral leader in healthcareWork at the cutting edge — contribute to products deployed globally on a leading-edge tech stack at the intersection of software engineering, cloud architecture, data platforms, and AILearn from the best — access world-class mentorship and training, working with renowned leaders and academics in machine learning, data, and software engineeringGrow your career — discover diverse opportunities through promotions, lateral moves, or international assignments in a company that values your developmentPursue Progress. LI-Hybrid #BarcelonaHub #SanofiHubsPursue progress, discover extraordinaryBetter is out there. xugodme Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.

SummaryLocation: BarcelonaType: Full time

📌 Data and AI Software Engineer Specialist (Barcelona)
🏢 Sanofi
📍 Barcelona