Job Summary: Itaú is seeking a Data Scientist passionate about innovation and technology to join its specialized Generative AI team, developing intelligent agents and LLMs. Key Highlights: 1. Working on strategic and innovative Generative AI projects at the largest bank 2. Collaborative environment with data, engineering, and product experts 3. Opportunity to influence Itaú’s AI and intelligent automation strategy Itaú is Brazil’s most valuable brand, ranked as the best company to work for by Great Place to Work, and the largest bank in Latin America. We impact over 98 million customers daily across 18 countries. We are made of people, and we believe that having a team with diverse origins, cultures, beliefs, experiences, races, disabilities, genders, sexual orientations, and generations broadens perspectives and contributes to an atmosphere of respect and appreciation for differences. We are looking for a Data Scientist passionate about innovation, continuous learning, and cutting-edge technology to join our specialized Generative AI team. You will be part of a multidisciplinary team developing intelligent agents, language models (LLMs), and applied AI solutions for various areas of Itaú Unibanco—from prototype to production deployment. If you enjoy turning ideas into real products, exploring new AI architectures, and working in a collaborative, high-impact environment, this role is for you. **What You’ll Do?** Design, evolve, and implement Generative AI agents and LLM-based solutions (text-to-text, multimodal, and tool-using). Participate in the full AI product development lifecycle: ideation, modeling, experimentation, validation, and production deployment. Explore and apply advanced NLP, deep learning, and multi-step reasoning techniques across different business domains. Work with vector knowledge bases, LangChain/LangGraph, embeddings, and integrations with LLM APIs (OpenAI, Azure, among others). Develop and optimize data pipelines, feature stores, and evaluation frameworks for generative models. Support the team in creating best practices, templates, and internal frameworks to accelerate the development of new AI products. Collaborate with engineers, designers, and business specialists to transform real-world needs into intelligent, secure, and scalable solutions. Communicate results and insights clearly, impact-oriented, and aligned with the bank’s AI strategy. Experience in Python, with proficiency in data science and AI libraries (pandas, scikit-learn, PyTorch or TensorFlow) Knowledge of language models and NLP (transformers, embeddings, fine-tuning, prompt engineering). Hands-on experience with Generative AI frameworks and APIs (Hugging Face, OpenAI API, LangChain, etc.). Ability to translate complex problems into applicable data and AI solutions. Collaborative mindset and curiosity for continuous learning. Familiarity with vector architectures (FAISS, Milvus, ChromaDB) and retrieval-augmented generation (RAG). **Desirable** Knowledge of MLOps and best practices for model versioning and observability. Interest in topics such as agent evaluation, AI safety, LLM interpretability, and multi-agent systems. **Why It’s Amazing to Work With Us** Working on strategic and innovative Generative AI projects at Latin America’s largest bank. Collaborative environment with data, engineering, and product experts. Direct opportunity to influence Itaú’s AI and intelligent automation strategy. Access to modern machine learning infrastructure, internal tools, and state-of-the-art technologies. Continuous learning incentives **As an Ituber, you’ll receive:** * Transportation Allowance * Meal Voucher (Restaurants) / Food Voucher (Supermarkets) * Health Plan (Fundação Saúde Itaú **or** Central Nacional Unimed) * Dental Plan (Odontoprev **or** Interodonto) * Life Insurance * Profit Sharing (PLR – Participation in Profits and Results, subject to bank performance) * Private Pension * Exclusive discounts on our financial products * Extended maternity and paternity leave * Daycare / Babysitter Assistance (for moms and dads) * Study Incentives * Wellhub or TotalPass * Access to Itaú Leisure Clubs (Guarapiranga / Itanhaém and São Sebastião) \+ Additional benefits you may learn about during the process * Learn more about our culture: https://www.itau.com.br/relacoes-com-investidores/noticias/cultura-itubers-e-nosso-novo-conjunto-de-valores/ * We encourage applications from people with disabilities for all positions; therefore, feel free to apply to roles marked as exclusive or non-exclusive for people with disabilities. We are committed to inclusion and value diversity. **\#VemProItaú \#VemSerItuber**