Partner with business teams to understand requirements and translate them into technical solutions, working with a good degree of autonomy

• Own the ingestion, cleaning, and harmonisation of IoT and sensor data from a mixed estate - some fully connected and streaming, plenty of it legacy, manual, or messy. A meaningful part of the role is data cleaning and wrangling: it’s the foundation everything is built on, and doing it well is genuinely high-impact here
• Design and deliver time-series models - forecasting, anomaly detection, and monitoring - on streaming sensor data to drive manufacturing performance and quality
• Design, build, and support real-time and streaming data pipelines together with engineers and MLOps, and help bring legacy sites up to a usable state
• Write highly optimised, production-ready code, taking models from experiment through to deployment
• Scope, define, and deliver AI-based data products end to end, using data analysis, visualisation, and storytelling
• Be accountable for the robustness of the AI solutions you deliver, applying responsible AI practices (monitoring, explainability, trustworthiness, ethics)
• Contribute to - and help raise the bar within - the global data science community of practice
• Support junior data scientists and analysts with informal guidance and code review

You’ll also work across the wider AI portfolio - including LLMs, Retrieval-Augmented Generation (RAG), and agentic AI workflows - as our products increasingly blend sensor intelligence with GenAI. Strong here is a plus, but IoT and time-series is the core of this role.

You’re a capable data scientist with a few years under your belt, genuinely excited by physical-world data - sensors, signals, and the machines that produce them. You can take a problem from vague business need to deployed model with limited hand-holding, and you’ve got a keen eye for improvement opportunities., Hands-on track record working with IoT data, sensor streams, or time-series (this is what we care about most)

• Demonstrated experience applying machine learning to real problems, ideally involving signals or temporal data
• Experience developing deployable code and taking models to production in an agile environment
• You’re not put off by messy, real-world data - a big part of this role is turning inconsistent legacy data into something usable, and doing it well is where a lot of the value sits
• Knowledge of the pharmaceutical or chemical domain is a huge advantage - understanding of manufacturing processes, GxP, or lab environments will set you apart

Soft skills:

• Excellent written and verbal communication skills
• Experience working with multiple teams to drive alignment and results
• Service-oriented, flexible, positive team player
• Self-motivated, takes initiative
• Problem solving & critical thinking

Technical skills:

• Strong Python, and comfortable with at least one database system - time-series databases (e.g. InfluxDB, TimescaleDB) especially valued
• Solid command of time-series methods - forecasting, anomaly detection, signal processing - on streaming data
• Working knowledge of streaming / real-time data technologies (e.g. Kafka, Spark Streaming, MQTT or similar)
• Strong ML foundations: supervised/unsupervised learning, deep learning, with a solid grasp of the underlying theory
• Comfortable working in cloud and high-performance computing environments (AWS, GCP, Databricks, Apache Spark)
• Good software engineering practices - version control, testing, CI/CD, orchestration
• Experience with data visualisation tools (Power BI, Tableau, Streamlit, Plotly, seaborn, or similar)
• Experience handling sensitive data in critical environments (healthcare, etc.)
• Familiarity with LLMs, RAG, or agentic workflows is a plus, not a requirement

Education:

• Master’s degree (or PhD) in engineering, computer science, mathematics, physics, statistics, or a related quantitative discipline with strong coding skills - backgrounds in chemical/process engineering, control systems, or signal processing are especially welcome

Languages:

• English and French

A fixed salary over 12 months, supplemented by a short-term incentive,as well asa collective variable compensationbased on Sanofi Group results.

Because taking care of our employees is also our mission:

• Benefits & Well-being:Quality health insurance, extended maternity/parental leave (18/14 weeks), enhanced support in case of illness, teleconsultation and second medical opinion covered by Sanofi, as well as many other wellness programs.

• Work-Life Balance:31 days of paid leave + RTT depending on your status, remote work up to 2 days/week

• Transportation:Public transport coverage up to 80%

• Savings & Retirement:Group Savings Plan and PERCOL with employer matching, and PERO

• Professional Development:Internal and international mobility opportunities, learning & development opportunities

• And more:platforms dedicated to peer-to-peer recognition & service exchanges between Sanofi employees (carpooling, home exchanges, etc.), numerous CSE benefits…

Why choose us?

We provide a highly open and collaborative environment, with the chance to work with a world-class team. You will be able to:

• Learn what it takes to build a service with a truly global reach
• Be part of an organisation that values diversity, inclusion, and the richness of different backgrounds and experiences
• Engage in meaningful work that combines the challenges of pharma, manufacturing, environmental matters, and technical fields - with abundant opportunities for professional growth and impact
• Grow your career at a company that’s not only a leader in healthcare but a pioneer in digital transformation, shaping the future of global health

LI-FRA #LI-Hybrid

Chez Sanofi, la diversité et l’inclusion sont au coeur de notre fonctionnement et sont intégrées à nos Valeurs fondamentales. Nous sommes conscients que pour exploiter véritablement la richesse que la diversité nous apporte, nous devons faire preuve d’inclusion et créer un environnement de travail où ces différences peuvent s’épanouir et être développées pour améliorer le quotidien de nos collègues, patients et clients. Nous respectons et valorisons la diversité de nos collaborateurs, leurs parcours et leurs expériences dans un objectif d’égalité des chances pour tous.

Dans le cadre de son engagement diversité, Sanofi accueille et intègre des collaborateurs en situation de handicap. The salary range for this position is :€48,000.00 - €64,000 La rémunération finale sera déterminée en fonction de l’expérience démontrée, des compétences, de la localisation et d’autres facteurs pertinents. Les employés peuvent être éligibles pour participer aux programmes d’avantages sociaux de l’entreprise.

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Join Sanofi’s Manufacturing & Supply team right in the heart of Lyon, in a vibrant startup-style environment in the city centre. You’ll support 12 blockbuster launch teams and 40 global factories across R&D and M&S, helping accelerate the launch of new medicines, build digitalised “Lighthouse” factories, and drive manufacturing performance improvements - all while enjoying an easy commute and a great work-life balance in one of France’s most dynamic cities.

About Sanofi:

We’re an R&D-driven, AI-powered biopharma company committed to improving people’s lives and delivering compelling growth. Our deep understanding of the immune system - and innovative pipeline - enables us to invent medicines and vaccines that treat and protect millions of people around the world. Together, we chase the miracles of science to improve people’s lives.