Data Scientist - IoT & Streaming Data (Digital M&S Accelerator)

• 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

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., A fixed salary over 12 months, supplemented by a short-term incentive, as well as a collective variable compensation based 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 to discover here.
• 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