Data Scientist, Mid-level – AI Agents

Casas Bahia Tecnologia

Cientista de Dados Pleno desenvolvendo soluções e agentes de IA no Grupo Casas Bahia. Focado na concepção, desenvolvimento e evolução de Inteligência Artificial para experiências positivas.

Posted 7/8/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Develop and implement AI agents (assistants, copilots, and intelligent automations) for different areas of the company.
Structure interaction flows and the decision logic of agents, ensuring the quality and consistency of responses.
Integrate AI models with corporate data, APIs, and internal systems.
Conduct testing, tuning, and continuous improvements — prompt engineering, model tuning, and performance evaluation.
Support the evolution of solutions based on LLMs and NLP, ensuring alignment with business use cases.
Collaborate with Tech Leads, Delivery, CX & AI, and AI Enablement to ensure alignment between technology, experience, and delivered value.
Monitor agents’ performance and usage, proposing continuous improvements.
Follow governance, security, and responsible AI usage guidelines.

Requirements

What you’ll need

Previous experience in data modeling, Machine Learning, or AI.
Knowledge of Python and data/AI libraries.
Familiarity with LLMs, NLP, or development of chatbots and agents.
Experience consuming APIs and handling structured and unstructured data.
Practices in prompt engineering and evaluating the quality of model responses.
Analytical and problem-solving skills with a business focus.
Practical experience developing data models, Machine Learning, or AI, with experience in projects involving LLMs, NLP, or agents and chatbots.
Experience consuming APIs and handling structured and unstructured data.

Benefits

Comp & perks

PLR/Bonus: Additional recognition to value your effort and dedication! 💸
Medical and Dental Coverage: So you and your family have security and care for your health. 🏥
Meal Allowance: Because we know quality meals are essential for your day-to-day! 🍽️
Life Insurance: Peace of mind and protection for you and your loved ones. 🛡️
Extended Maternity Leave: 180 days for our mothers to enjoy this important time with their baby! 👶
Extended Paternity Leave: 20 days so fathers can also be present during the early days of life. 👨‍👩‍👧‍👦
Fitness Incentive: Access Wellhub (Gympass) and TotalPass to stay active and take care of your health. 🏋️‍♂️
Commuting Allowance: To ensure your trip to work is smooth and worry-free. 🚆
SESC Partnership: Enjoy great benefits in culture, leisure, health, and more! 🎭
Discount Club: Take advantage of discounts of up to 70% on products and services with over 2,000 partners in Brazil and Latin America! 🛍️
Birthday Day-off: Celebrate your day with more rest and fun — you’re entitled to a day off on your birthday! 🎉
Pharmacy Discounts: Exclusive discounts on medications to help you save on health care! 💊

ATS Keywords

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Applicant Tracking System Keywords

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

Hard Skills & Tools

Data ModelingMachine LearningAI DevelopmentPrompt EngineeringModel TuningPerformance EvaluationHandling Structured DataHandling Unstructured Data

Soft Skills

Analytical SkillsProblem-Solving SkillsCollaboration