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Data Scientist

Barcelona💼 Full-time🗓 2025-11-03 → 2026-09-25

Core

Design and experiment with algorithms to power personalized real-time sales recommendations for millions of users across hundreds of thousands of products.

Role type

Data Scientist (Recommender Systems)

Builds

Personalized recommendation models for e-commerce flash sales

Domain

E-commerce / Retail

Deliverable

production ML models

Required skills

Python (Pandas, NumPy, Scikit-Learn), SQL, Machine Learning algorithms, XGBoost, LightGBM, TensorFlow, Pytorch, statistics, experimentation design

Preferred skills

Recommender systems experience, e-commerce domain knowledge

Technologies

XGBoost, LightGBM, TensorFlow, Pytorch, Pandas, NumPy, Scikit-Learn

Responsibilities

Design, train, and evaluate recommender system models; conduct data exploration and feature engineering; perform offline experiments and A/B tests; collaborate with ML Engineers on model deployment; present findings during Data Science Demos

Seniority

Mid-level, hands-on IC

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