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Extractta

Senior Data Scientist

Extractta

Data Scientist driving financial product strategies and conducting analyses for a major financial client. Leading machine learning model implementations and collaborating with product teams.

Posted 6/24/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies
NumpyPandasPythonSparkSQL

About the role

Key responsibilities & impact
  • Conduct exploratory analyses of large volumes of transactional and behavioral data to uncover actionable insights and business opportunities.
  • Build and deploy machine learning and deep learning models that solve real-world problems, such as fraud detection, recommendation systems, credit risk analysis, purchase propensity, and churn prediction, among others.
  • Validate hypotheses through controlled experiments using A/B testing methodologies and statistical analysis.
  • Collaborate with Product Owners and engineers to translate business problems into robust, scalable analytical solutions.

Requirements

What you’ll need
  • Machine Learning: experience with machine learning models in production environments, understanding the challenges of building scalable solutions for real-world settings.
  • Programming: proficiency in Python with libraries such as pandas, numpy, and matplotlib; experience with SQL for handling large volumes of data.
  • Statistics: strong foundation in descriptive and inferential statistics, hypothesis testing, analysis of variance, and probability concepts, as well as A/B experimentation methodologies.
  • Data Mining: ability to explore and extract insights from complex datasets, identify patterns and anomalies, and work with structured and semi-structured data from multiple sources.
  • Data Storytelling: ability to communicate technical results and insights through clear presentations and effective visualizations for diverse audiences, translating complex findings into actionable recommendations.
  • Preferred: knowledge of Spark for distributed processing.
  • Experience with deep learning frameworks and deploying models to production (MLOps).

Benefits

Comp & perks
  • Meal and/or food voucher
  • Sesi and Sesc partnership, providing access to health, wellness, and leisure services
  • Partnerships with educational institutions offering exclusive discounts on courses and programs
  • Opportunities for career growth within the company and participation in strategic projects
  • Opportunity to work at a rapidly growing company in the market.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
machine learningdeep learningPythonpandasnumpymatplotlibSQLstatisticsdata miningA/B testing
Soft Skills
data storytellingcommunicationcollaboration