What are we looking for? * Master's or Doctorate in Computer Science, Engineering, Mathematics or related fields (specialization in Data Science is a plus); * Minimum of 2 years of experience in Data Science or related roles; * Strong knowledge in mathematics, statistics, machine learning, NLP, and text dataset curation; * Proficiency in Python and ML/DL frameworks such as PyTorch, NumPy, and Scikit-Learn; * Some experience in NLP tasks such as Text Classification, NER, and Information Retrieval; * Some experience working with LLMs, particularly in prompt engineering; * Practical experience developing solutions in real-world data analysis applications; * Familiarity with cloud platforms (Azure, AWS, Google Cloud) – preferred; * Experience with agent frameworks (e.g., LangGraph) – preferred; * Knowledge of MLOps practices – preferred; * Availability to go to the office 1 to 2 times per month; * Fluency in Portuguese and English (B2+). What do we offer you? * Health insurance; * Feedback&Coffee – the system encompassing the Performance Management Cycle, with regular feedback sessions and Aubay's Career Progression Model; * Work model: Hybrid; * A Training Academy designed around your needs. You can count on technical and behavioral training (e-Learning and classroom), Meet&Techs, Webinars, and Mentoring. * Events and Teambuildings. What sets us apart? * Our organizational culture is based on values such as transparency, teamwork, regular feedback, and continuous learning; * Referral bonuses and birthday gifts; * We have no dress code; * We know your name and address each other informally; * You will grow in good company. Isn't this one of the ways to advance professionally?