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# Principal AI Data Scientist -

- **Company:** Groupe Accor
- **Location:** Issy-les-Moulineaux, France
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** LangGraph Framework, Artificial Intelligence, Amazon Web Services, Databases, Continuous Integration, Python (Programming Language), Machine Learning, Tensorflow, Software Engineering, Chatbots, Pytorch, LangChain, Retrieval-Augmented Generation, Large Language Models, Deep Learning, Generative AI, Kubernetes, Information Technology, Machine Learning Operations
- **Published:** October 27, 2026
- **Apply:** https://espace-emploi.agefiph.fr/jobs/22200807

## About the Role

* Master's degree in Engineering, Computer Science, Data Science, or a related field.
 * Minimum 10 years of experience in Data Science and Machine Learning, including several years working with deep learning, generative AI and LLMs.
 * Proven track record of designing, deploying and operating Machine Learning and Generative AI solutions, including chatbots, content generation platforms and agentic workflows.
 * Strong communication and stakeholder management skills, with the ability to explain GenAI concepts, limitations and risks to non-technical audiences and influence strategic decision-making.
 * Hands-on expertise in Python and modern AI/ML frameworks and technologies, including PyTorch, LangChain, LangGraph and related ecosystems.
 * Strong knowledge of RAG, vector databases, embeddings and agent orchestration frameworks.
 * Proven experience with cloud-based MLOps and LLMOps practices (AWS, MLflow, CI/CD, etc.), including LLM evaluation, observability and large-scale monitoring of quality, latency and cost.
 * Experience within hospitality, travel, retail, or large-scale B2C/B2B environments would be a strong advantage.

Additional Information

Accor dares to impact:

 - the world
 * Accor is committed to the world around us, with a strong employer culture focused on the development of our 300,000 talents.
 * We adopt a continuous improvement approach to reduce the impact of digital on the environment across all our projects.

## Description

* Deliver end-to-end AI initiatives, from problem framing and model selection to experimentation, deployment and continuous improvement.
 * Design and implement LLM-based solutions, including conversational assistants, agentic workflows and other advanced AI applications.
 * Define and lead Accor's AI architecture, ensuring scalability, flexibility and alignment with emerging technologies and industry best practices.
 * Establish and promote best practices in prompt engineering, model evaluation, MLOps and technical documentation.
 * Collaborate closely with Data, Platform and Product teams to industrialize AI solutions that are reliable, scalable, performant and effectively monitored.
 * Mentor and support the broader Data & Engineering community on AI architectures, reusable components and software engineering best practices.
 * Drive technology watch activities and lead POCs to evaluate new models, tools and frameworks.