Data Scientist
Principal Data Scientist "AI for Hotels" - F/M/X
Issy-les-Moulineaux
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Company Description
Join Accor – a professional journey at the heart of a committed, international and transforming group
Accor, a global leader in hospitality, present in more than 110 countries with 5,500 hotels, welcomes you to its offices located in Issy-les-Moulineaux.
This is where the Group’s global expertise comes together: strategy, finance, human resources, legal, technology, marketing, sustainability, communication, audit, procurement, etc.
Joining Accor means actively contributing to defining, structuring, and supporting the transformation of an international group, in direct connection with operational teams around the world.
Job Description
Accor Tech & Digital
is the innovation and technological transformation lab of the world leader in hospitality.
Our teams, known as Heartists®, bring together the best of hospitality with the best of tech and digital.
Our ambition is to provide our customers with personalized, memorable, and sustainable experiences.
Here,
we create new ways to travel within each of our 5,500 hotels, connecting closely with our 100 million clients in 110 countries.
Here,
we are at the heart of an incredible playground for technological transition and the design of digital products and services for our customers and hotel teams.
Here,
your scope will know no boundaries;
So join us and
dare to make an impact on the world!
This Is Where Your Greatest Challenge Awaits
Reporting to the
SVP of Data Science & AI
, you will join a team at the heart of the Accor Group’s transformation through data and artificial intelligence.
Within the Data department, the Data Science & AI vertical aims to
define and implement the Group’s AI vision
, to scale up the use of ML, GenAI and Agentic AI, and to maximise the business impact of these technologies on the customer experience, hotel operations and internal teams.
As a
senior technical leader
, you will drive the design, development and deployment of machine learning, generative AI and agentic AI solutions, as well as LLM-based platforms, enabling high-impact business capabilities and services.
Your Mission
- 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.
Qualifications
And you
?
- 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.
- your career:
- We enable all our employees to manage their work-life balance and offer them the means to shape their work environment according to their preferences.
- Training and career paths are defined both individually and collectively, allowing us to grow together on a daily basis.
- Specifically, at Accor Tech & Digital:
- Remote work available several days per week from France, with flexible work options: work from home, from our offices, or even from our hotels and coworking spaces through Worklib.
- Every Wednesday afternoon, dedicate your time to deep work and personal development.
- Work in a multicultural and English-speaking environment.
- Continuous improvement & training: hackathons, exceptional technology partnerships, dedicated talent management, certifications and a dedicated learning platform.
and also
,
- ALL - Heartist® Program: unforgettable stays and experiences at all Accor locations and partner venues worldwide.
- Heartist® for Good Program: commit to supporting an association of your choice from those available on our volunteering platform (1 day offered per year by the Group during your working hours).
- An Employee Social Committee (CSE) supporting the financing of your cultural and sports activities.
- Sustainable Mobility Package for the use of eco-friendly transportation or access to a company bike program in partnership with Zenride.
- Coverage of urban public transport subscriptions between home and workplace, in accordance with the rates set by French law “Loi Finance”.
- €11 meal vouchers.
- A mandatory health insurance plan funded at 50% by Accor without additional costs in case of enrollment of your dependents.
- Attractive working conditions with collaborative workspaces, restaurants, and recreational areas as well as wellness and sports facilities, on-site or through Gymlib.
Your talent and motivation are our only selection criteria.
We value the richness of diverse nationalities, personalities, and professional backgrounds.
We know how to adapt to the specific needs of our employees, including those with disabilities.
We encourage all applications, regardless of gender,
so go ahead and apply!
Recruitment is all about people!
Is this mission appealing to you?
Apply, and we will offer you:
- A meeting with our recruitment team to present the essential aspects of the position to you or guide you towards the role that may suit you.
- An interview with the team manager responsible for the role you are interested in.
- For some roles, you might also be required to complete an assessment (use case and motivation questionnaire.
- A final interview with our Human Resources team to discuss our Group's culture, work environment, training program, career prospects, as well as various benefits offered by the Group.
- A personalized feedback.
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