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# Senior Data Scientist I

- **Company:** Checkout.com
- **Location:** Paris, France
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Data Analysis, Computer Vision, Data Files, Data Integrity, Python (Programming Language), Machine Learning, Deep Learning, Generative AI, Data Analytics, Data Management, Machine Learning Operations
- **Published:** October 29, 2026
- **Apply:** https://www.welcometothejungle.com/en/companies/checkout-com-1/jobs/senior-data-scientist-i_paris_hbzrpier

## About the Role

* Over 5 years of applied experience as a Data Scientist in a data-intensive environment, working with complex, large-scale, and diversified data sets.
 * Expert-level Python programming knowledge and demonstrable experience deploying models in a high-traffic production environment.
 * Proven experience in GenAI / Computer Vision model experimentation, including the creation and implementation of deep-learning models and scalable GenAI pipelines.
 * Exceptional communication skills, with the ability to articulate technical concepts and complex findings clearly to both technical and non-technical audiences.
 * Parlez-vous français? Excellent French language skills (written and spoken) are a non-negotiable for this role. You'll be diving straight into a French-speaking environment from day one.
 * A proactive mindset: the drive to challenge existing processes and decisions to continuously improve efficiency and outcomes for everyone.
 * Highly curious, able to take initiative, and work with a high degree of autonomy.
 * Strong commitment to a data-driven approach, consistently defining clear success metrics and rigorously measuring progress against them.
 * Flexible and adaptable, with a strong willingness to rapidly learn and master new technologies and domains.

Bonus Points:

 * Solid theoretical and practical knowledge of Computer Vision, Machine Learning, and Generative AI principles.
 * Direct experience solving real-world business problems through innovative, data-driven approaches.

## Description

As a Data Scientist at Checkout.com , you will be embedded within the Identity Verification Team, a critical function focused on building innovative products to verify the identities of individuals and businesses globally.

In this high-impact role, you will be instrumental in the development of next-generation verification features, deploying intelligent, production-ready solutions by leveraging state-of-the-art Generative AI and Computer Vision technologies.

You will be expected to work closely and collaboratively with Product, Development, and Data teams to ensure successful, end-to-end delivery of these solutions, while constantly researching and integrating emerging technologies. A core part of your contribution will be safeguarding data integrity and ensuring compliance, and translating complex data insights into clear, actionable recommendations for stakeholders to support informed, data-driven decision-making across Checkout.com .

What you will be doing:

 * Drive the design and development of innovative GenAI and Computer Vision-based approaches to solve complex, real-world identity verification challenges.
 * Execute deep-dive exploratory data analysis (EDA) and technical discoveries to generate meaningful, novel insights that shape product direction.
 * Design, implement, and analyze rigorous experiments and A/B tests to quantitatively measure model performance and directly guide iterative improvements.
 * Take full ownership of new model development, managing the end-to-end lifecycle from initial conceptualization and design through to deployment and monitoring in a production environment.
 * Actively collaborate with cross-functional teams (Engineering, Product, Risk) across the company to maximize the positive impact of data science initiatives.
 * Champion a culture of technical excellence, cross-team learning, and knowledge sharing within the Data organization.