Senior Data Scientist (W/M)

Lesaffre; France; On-site; EUR 60,000 - 80,000; Full time

Job summary

A leading global company is seeking a Senior Data Scientist to drive AI transformation and design advanced AI models for complex business challenges. This role involves collaboration with cross-functional teams, ensuring robust and scalable AI solutions. Responsibilities include end-to-end development of Data Science models, promoting the use of GenAI tools, and applying AI governance standards. The ideal candidate holds a Master's or PhD in a relevant field and has deep expertise in data science and AI ethics.

Qualifications

• Deep expertise in Data Science and AI model development.
• Experience with GenAI tools and MLOps standards.
• Strong understanding of AI ethics and governance.

Responsibilities

• Lead the end-to-end development of Data Science models.
• Accelerate coding and documentation with GenAI tools.
• Ensure robustness and scalability through MLOps.

Skills

Predictive modeling

Data Engineering collaboration

Machine Learning Operations (MLOps)

AI ethics and governance

Education

Master's or PhD in Data Science or related field

Tools

AWS

Snowflake

GitHub Copilot

MLflow

Docker

Job description

Within its global transformation, the Digital, Data & Tech (DD&T) department drives Lesaffre’s digital and data journey across four strategic pillars:

• Smart Operations (industrial efficiency & sustainability)
• Augmented R&D (accelerated innovation through data & AI)
• Customer Centricity (personalized and data-driven customer engagement)
• Empowered Enterprise (AI copilots and decision support)

As a Senior Data Scientist, you will be a key contributor to Lesaffre’s AI transformation, designing, developing, and deploying advanced AI models to solve complex business challenges across industrial, R&D, and commercial activities.

You will work within an agile squad alongside Product Managers, Data Engineers, and MLOps specialists to deliver reliable, scalable, and impactful AI solutions.

You will act as a technical expert, ensuring that models are built with quality, explainability, and measurable business value.

Your main missions will be :

1. Design and Delivery of AI Solutions

• Lead the end-to-end development of Data Science models, from scoping to production.
• Build predictive, prescriptive, and generative AI models to improve operational performance, quality, and decision-making.
• Collaborate closely with Product Managers, Data Engineers, and business experts to translate business needs into concrete solutions.

2. GenAI and Productivity Enhancement

• Use GenAI code assistant tools (e.g., GitHub Copilot, Claude, …) to accelerate coding, testing, and documentation.
• Contribute to agentic AI and copilot initiatives empowering Lesaffre employees through conversational interfaces.
• Promote responsible and efficient use of GenAI tools within the team.

3. Industrialization and MLOps

• Ensure robustness, reproducibility, and scalability through MLOps standards (MLflow, DVC, CI/CD, Docker).
• Work with Data Engineers to optimize data pipelines and model serving in AWS / Snowflake environments.
• Monitor model performance, detect drift, and ensure continuous improvement.

4. Governance and Ethics

• Apply Lesaffre’s AI Governance and Ethical AI Charter, ensuring fairness, transparency, and compliance with the EU AI Act.
• Document models, datasets, and assumptions to ensure auditability and responsible AI practices.

5. Knowledge Sharing and Community Contribution

• Share expertise and best practices with peers across the AI Community of Practice.
• Support upskilling initiatives and contribute to methodological and technical excellence.