[Job-00024] Senior Data Scientist, Brazil

CI&T; Brasil; Presencial; BRL 120.000 - 180.000; Tempo integral

Resumo da oferta

A global tech transformation company in Brazil seeks a Data Scientist adept at solving complex business challenges using data science. Candidates should have experience with Python, SQL, and machine learning models. The role involves modeling data, designing machine learning solutions, and delivering insights to stakeholders. Benefits include health insurance, meal allowances, and a continuous learning platform. Strong communication skills in English are essential for collaborating in diverse teams.

Serviços

Health and dental insurance

Meal and food allowance

Childcare assistance

Extended paternity leave

Profit Sharing and Results Participation

Continuous learning platform

Qualificações

• Experience building and validating ML models including regression and classification.
• Strong knowledge of feature engineering and statistical testing.
• Business acumen to translate insights into impact.

Responsabilidades

• Understand business challenges and translate them into data science problems.
• Design machine learning models and conduct A/B testing.
• Deliver proof-of-concepts and production-ready models.

Conhecimentos

Proficiency in Python

SQL

Data wrangling

Feature engineering

Statistical hypothesis testing

Model deployment

Advanced communication skills in English

Ferramentas

AWS

Azure

GCP

Databricks

Power BI

Tableau

Descrição da oferta de emprego

Overview

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 8,000 CI&Ters worldwide, we’ve built partnerships with more than 1,000 clients over our 30‑year history. Artificial Intelligence is our reality.

Responsibilities

• Understand complex business challenges and translate them into data science problems.
• Explore, analyze, clean, and model structured and unstructured datasets from various sources.
• Design and implement machine learning models, statistical tests, and optimization strategies.
• Conduct experimentation using A/B testing, uplift modeling, and simulation frameworks.
• Deliver proof‑of‑concepts and production‑ready models within Agile and cross‑functional teams.
• Create and present data storytelling insights for both technical and business stakeholders.
• Contribute to model explainability, fairness, and responsible AI practices.
• Stay updated on academic and industry research, and promote innovative solutions.

Requirements

• Proficiency in Python (pandas, scikit‑learn, statsmodels, etc.) and SQL.
• Experience building and validating ML models: regression, classification, clustering, dimensionality reduction, forecasting.
• Strong knowledge of data wrangling, feature engineering, and statistical hypothesis testing.
• Experience with cloud platforms (AWS, Azure, or GCP) and scalable data/ML tools (e.g., Databricks, BigQuery, SageMaker).
• Familiarity with Git and experimentation frameworks.
• Experience with model deployment and integration into digital products or services.
• Business acumen and a consulting mindset to help translate insights into impact.
• Advanced communication skills in English (written and spoken), able to work in multicultural teams.

Nice to Have

• Knowledge of Explainable AI techniques.
• Exposure to graph analytics, recommender systems, or NLP applications.
• Experience with data visualization tools (Power BI, Tableau, Plotly, Streamlit).
• Understanding of data governance, quality, and security (including GDPR).
• Familiarity with CI/CD and MLOps practices (e.g., MLflow, DVC).

Benefits

• Health and dental insurance
• Meal and food allowance
• Childcare assistance
• Extended paternity leave
• Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass
• Profit Sharing and Results Participation (PLR)
• Life insurance
• Continuous learning platform (CI&T University)
• Discount club
• Free online platform dedicated to physical, mental, and overall well‑being
• Pregnancy and responsible parenting course
• Partnerships with online learning platforms
• Language learning platform

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

Inclusion and Accessibility

At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here. This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.

We have a dedicated Health and Well‑being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.