We are specialists in **technological transformation**, combining human expertise with AI to build scalable tech solutions. With over 8,000 CI&Ters worldwide, we have partnered with more than 1,000 clients throughout our 30-year history. Artificial Intelligence is our reality. **Important**: If you reside in the Metropolitan Region of Campinas, your physical presence in the city’s offices is mandatory, per our current attendance policy. We are seeking Mid- and Senior Data Scientists passionate about transforming data into valuable insights. If you have experience with Python, SQL, SAS, and are proficient in Machine Learning libraries, this is the ideal opportunity for you! **Key Responsibilities:** * Conduct exploratory data analysis (EDA) to uncover relevant patterns and insights. * Develop predictive models using libraries such as TensorFlow, Keras, Scikit-Learn, and others. * Perform model experimentation and optimization, including hyperparameter tuning and cross-validation. * Implement feature engineering techniques to improve model performance. * Apply Natural Language Processing (NLP) and Deep Learning methods to relevant projects. * Collaborate with the data engineering team to ensure data integrity and accessibility. * Create impactful data visualizations using tools such as Power BI, Matplotlib, and Seaborn. * Develop and maintain MLOps pipelines, including CI/CD for machine learning models. * Integrate solutions with APIs and implement chatbots when required. * Present results and insights clearly and effectively to stakeholders. **Required Skills and Qualifications:** * Experience with programming languages such as Python, SQL, SAS, and PySpark. * Experience with Machine Learning libraries, including TensorFlow, Keras, Scikit-Learn, Spark MLlib, XGBoost, PyTorch, LightGBM, CatBoost, Prophet, and Statsmodels. * Solid understanding of Data Science, including data wrangling, large-scale data processing, statistics, and hypothesis testing. * Knowledge of data engineering tools such as Hive and Airflow. * Experience with database management systems, preferably SQL Server. * Familiarity with cloud computing platforms—especially AWS and Azure—and tools such as Databricks and Docker. * Proficiency in MLOps and managing machine learning pipelines using tools such as MLflow, Kubernetes, and AWS SageMaker. \#LI-DR3 \#MidSenior **Our Benefits:** * Health and dental insurance; * Meal and food allowance; * Childcare assistance; * Extended parental leave; * Partnerships with gyms and health & wellness professionals via Wellhub (Gympass, TotalPass); * Profit and Results Sharing Program (PRP); * Life insurance; * Continuous learning platform (CI&T University); * Discount club; * Free online platform dedicated to promoting physical, mental, and overall well-being; * Pregnancy and responsible parenting course; * Partnerships with online course platforms; * Language learning platform; * And many more. For more details about our benefits, visit: https://ciandt.com/br/en-us/careers At CI&T, inclusion begins at first contact. If you are a person with a disability, it is essential to **submit your medical report during the selection process.** *Click here to see which information must be included in the report.* This allows us to provide the support and accommodations you deserve. **If you do not yet have an official disability certification, don’t worry—we can support you in obtaining it.** We have a dedicated Health & Wellness team, inclusion specialists, and affinity groups ready to support you at every stage. Count on us to walk this journey alongside you.