> Markdown version of [/jobs/ext/1599550-data-scientist](https://www.wearedevelopers.com/jobs/ext/1599550-data-scientist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Scientist - **Company:** Propertyvalue - **Location:** Spain - **Contract:** Permanent contract - **Skills:** A/B Testing, Data Analysis, Python (Programming Language), Machine Learning, NumPy, Recommender Systems, Tensorflow, SQL Databases, Feature Engineering, Pytorch, Pandas, Scikit Learn, Xgboost - **Published:** July 12, 2026 - **Apply:** https://es.trabajo.org/oferta-5354-39429aa645598750b9d91bb5e423ac48 ## About the Role JOB DESCRIPTION As a Data Scientist, you will join our Data Science team across Paris, Lyon, Barcelona, and Brussels. The team focuses on implementing, maintaining, and continuously improving our recommender systems to deliver personalized sales recommendations to millions of users in real time. Responsibilities - Design, train, and evaluate recommender system models using state-of-the-art machine learning techniques. - Conduct in-depth data exploration and feature engineering to extract actionable insights. - Perform offline experiments and A/B tests to validate model impact on key business metrics. - Collaborate with ML Engineers to ensure smooth model deployment and monitoring. - Present findings and new approaches during Data Science demos. Qualifications - Proficiency in Python (Pandas, NumPy, Scikit-Learn, etc.) and SQL. - Foundational knowledge of machine learning and experience with libraries such as XGBoost, LightGBM, TensorFlow, or PyTorch. - Solid understanding of statistics, evaluation metrics, and experimentation design. - Prior experience with recommender systems or e-commerce is a strong plus. - Strong verbal and written English communication skills. All of our positions are open to people with health conditions or impairments. We are committed to diversity and inclusion and review all applications on an equal basis. J-18808-Ljbffr ## Related Videos - [Data Science in Retail](https://www.wearedevelopers.com/videos/586-data-science-in-retail) - [Photonic Computing: Programming a New Class of AI Accelerators (incl. Live Coding)](https://www.wearedevelopers.com/videos/100196-photonic-computing-programming-a-new-class-of-ai-accelerators-incl-live-coding) - [Advanced Typing in TypeScript](https://www.wearedevelopers.com/videos/496-advanced-typing-in-typescript) - [Vectorize all the things! Using linear algebra and NumPy to make your Python code lightning fast.](https://www.wearedevelopers.com/videos/562-vectorize-all-the-things-using-linear-algebra-and-numpy-to-make-your-python-code-lightning-fast) - [Data Science on Software Data](https://www.wearedevelopers.com/videos/162-data-science-on-software-data) - [Geometric deep learning for drug discovery](https://www.wearedevelopers.com/videos/264-geometric-deep-learning-for-drug-discovery) ## Related Articles - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Best Companies to Work For in Paris: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/190-best-companies-to-work-for-in-paris-top-25-companies-in-2023) - [Data Analyst Salary Germany](https://www.wearedevelopers.com/magazine/277-data-analyst-salary-germany) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Best Companies to Work For in France: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/189-best-companies-to-work-for-in-france-top-25-companies-in-2023)