AI Engineer Location: Barcelona, Spain

About the job

As an AI Engineer within this team, you will design and build cutting‑edge agentic AI systems that reimagine how Sanofi's global Supply Chain operates. You will architect and deploy intelligent, autonomous AI agents that automate complex supply chain workflows, unlock real‑time decision‑making, and drive operational excellence at scale.

About Sanofi

Sanofi is a global biopharmaceutical company dedicated to supporting people through their health challenges, committed to chasing the miracles of science to improve people's lives. Our team across some 100 countries transforms the practice of medicine — providing life‑changing treatments and life‑saving vaccines to millions globally, with sustainability and social responsibility at the center of our ambitions. Our values — Aim Higher, Act for Patients, Be Bold, and Lead Together — guide everything we do.

Main responsibilities

- Agentic AI Systems Development
- Design and develop agentic AI systems that automate and optimize end-to-end supply chain workflows, including demand forecasting, inventory management, logistics, and procurement
- Build multi‑agent architectures using frameworks such as LangChain, LangGraph, or equivalent
- Develop AI‑powered decision‑making systems that enable autonomous or semi‑autonomous operations across supply chain processes
- Integrate LLMs and generative AI capabilities into operational workflows to enhance intelligence, reasoning, and automation
- Design and implement RAG (Retrieval‑Augmented Generation) architectures and vector database solutions to power knowledge‑grounded AI agents

Education

Bachelor's or Master's degree in Computer Science, Data Science, AI/ML, Software Engineering, or a related quantitative field

Experience

3–5 years of hands‑on experience in AI/ML development or software engineering with working exposure to data engineering

Proven experience building and deploying AI agents or multi‑agent systems in a professional environment

Track record of delivering production‑grade AI or data solutions with measurable business impact





Technical Skills

- Programming: Python (proficient), SQL (advanced)
- Agentic Frameworks: LangChain, LangGraph or similar
- LLM & GenAI: AWS Bedrock, prompt engineering, RAG architectures, experience with OpenAI/other providers transferable
- Vector Databases: Pinecone or equivalent
- Cloud Platforms: AWS or equivalent
- MLOPs: W&B; Weave or equivalent, model monitoring, CI/CD for AI
- DevOps: Git, CI/CD pipelines, Docker/Kubernetes

Why choose us?

- Frontier AI Engineering: Work on cutting‑edge agentic AI systems — multi‑agent architectures, LLM integration, and real‑time AI decision‑making — with genuine operational impact at general scale
- Reimagine Supply Chain: Be part of a pioneering team transforming how Sanofi’s global supply chain operates through AI — from demand forecasting to logistics optimization
- Global Impact: Your AI solutions will directly influence the availability of life‑saving medicines for patients worldwide
- Cutting‑Edge Exposure: Stay at the forefront of AI — LangGraph, multi‑agent systems, RAG, generative AI — in a team that actively explores and adopts emerging technologies
- Shape the Future: Contribute the AI Engineering team's product roadmap and help define what AI‑driven operations look like in a global pharma leader

Career Growth

Access to structured development programs, internal mobility, and continuous learning resources within Sanofi’s digital ecosystem

Inclusive Culture

Join a diverse, mission‑driven team united by a passion for AI and operational excellence

Competitive Package

Attractive compensation, performance bonuses, and comprehensive benefits

Flexible Working

Hybrid work model supporting work‑life balance





#LI‑Hybrid #BarcelonaHub #SanofiHubs 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 from all backgrounds.

Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.com!

The salary range for this position is :€43.600,00 - €65.400,00 Final compensation will be determined based on demonstrated experience, skills, location, and other relevant factors. Employees may be eligible to participate in Company employee benefit programs.

We are an R&D; driven, AI‑powered biopharma company committed to improving people’s lives and creating compelling growth. Our team is guided by one purpose: we chase the miracles of science to improve people’s lives. We want to build a healthier, more resilient world, and turn the impossible into the possible by discovering, developing, and delivering medicines and vaccines for millions of people around the world.

Discover more about us visiting www.sanofi.com or via our movie We are Sanofi Start a career that makes a difference. Reinvention is in our DNA. It’s what drove our evolution from a small French enterprise to one of the world’s leading biopharma companies. Whether it’s using AI to shorten drug‑discovery times or building trust in healthcare, you could be helping our teams make life better for patients, partners, and communities. This is where you grow your career. We open the door for you to explore new opportunities, push your limits, and connect with people who are driven by a shared purpose: we chase the miracles of science to improve people’s lives.

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📌 AI Engineer (Barcelona)
🏢 Sanofi
📍 Barcelona