Itaú Unibanco

Senior Data Scientist – Intelligence

Itaú Unibanco

full-time

Posted on:

Location Type: Hybrid

Location: São Paulo • Brazil

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Job Level

Senior

Tech Stack

AzurePandasPythonPyTorchScikit-LearnTensorflow

About the role

  • Create, evolve, and implement generative AI agents and solutions based on LLMs (text-to-text, multimodal, and tool-using).
  • Participate in the full AI product development cycle: design, modeling, experimentation, validation, and production deployment.
  • Explore and apply advanced NLP techniques, deep learning, and multi-step reasoning across different business domains.
  • Work with vector knowledge bases, LangChain/LangGraph, embeddings, and integrations with LLM APIs (OpenAI, Azure, and 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 turn real needs into intelligent, secure, and scalable solutions.
  • Communicate results and learnings clearly, with an impact focus and aligned to the bank’s AI strategy.

Requirements

  • Experience in Python, with strong command of data science and AI libraries (pandas, scikit-learn, PyTorch or TensorFlow).
  • Knowledge of language models and NLP (transformers, embeddings, fine-tuning, prompt engineering).
  • 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 a curiosity for continuous learning.
  • Familiarity with vector architectures (FAISS, Milvus, ChromaDB) and retrieval-augmented generation (RAG).
  • Knowledge of MLOps and best practices for model versioning and observability.
  • Interest in topics such as agent evaluation, AI safety, interpretability of LLMs, and multi-agent systems.
Benefits
  • Transportation allowance
  • Meal voucher (restaurants) / Food voucher (supermarkets)
  • Health insurance (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 plan
  • Exclusive discounts on our financial products
  • Extended maternity and paternity leave
  • Childcare/Babysitting assistance (for parents)
  • Tuition/education assistance
  • Wellhub or TotalPass (wellness benefits)
  • Access to Itaú leisure clubs (Guarapiranga / Itanhaém and São Sebastião)
  • + Additional benefits you may learn about during the process 😊
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Pythondata scienceAI librariespandasscikit-learnPyTorchTensorFlowNLPgenerative AIMLOps
Soft Skills
collaborative mindsetcuriosity for continuous learningcommunication