As a **Data Science Engineer** at Mercado Libre, you will design and scale innovative and secure systems that solve real, high-impact problems. You will work in a dynamic environment with cutting-edge technology, applying engineering best practices, proprietary AI models, and continuous learning, with the purpose of democratizing e-commerce and financial services in Latin America. Imagine yourself leading challenging, dynamic, and innovative projects and **being responsible for:** * Creating, developing, and implementing scalable solutions based on Machine Learning, NLP, and Gen AI, contributing to building data products that enable the use of these technologies across different business areas; * Conducting exploratory analyses, preparing data, and developing ML models and pipelines that generate recommendations and identify improvement opportunities within the Mercado Libre ecosystem; * Designing and optimizing prompts, creating agents and other approaches using generative AI (Gen AI), exploring new ways to enhance the efficiency and impact of internal teams; * Collaborating with technical and business teams, translating strategic challenges into data-driven solutions and promoting the responsible and scalable use of artificial intelligence within the organization. **What are we looking for in you?** * Degree in Data Science, Statistics, Mathematics, Computer Science, or related fields; proficiency in Python and SQL for large-scale data manipulation, modeling, and analysis to generate insights; * Practical experience with Machine Learning (classification, regression, time series, NLP, clustering, deep learning) and familiarity with Scikit-learn, TensorFlow, or PyTorch; experience with cloud computing (preferably GCP or AWS) and code versioning best practices (Git/GitHub); * Ability to translate analytical insights into actionable recommendations, communicating results clearly, objectively, and visually; experimental and curious mindset, with interest in exploring new techniques in generative AI (Gen AI) and LLMs. * Intermediate-level knowledge of English and Spanish will be considered desirable. **Are you excited about making your mark on Latin America's technology landscape?** Apply now and join our mission! Hybrid work mode. Office location: Osasco, SP.