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I am a Data Scientist with extensive experience in developing and deploying machine learning models specifically for fraud prevention and risk analysis. With a strong academic foundation in survival analysis, I have transitioned to focus on Marketing Science, designing experiments that measure channel impact and optimize marketing budget allocation. My aim is to leverage data to drive strategic decision-making and enhance business outcomes.…I am a Data Scientist with extensive experience in developing and deploying machine learning models specifically for fraud prevention and risk analysis. With a strong academic foundation in survival analysis, I have transitioned to focus on Marketing Science, designing experiments that measure channel impact and optimize marketing budget allocation. My aim is to leverage data to drive strategic decision-making and enhance business outcomes.

Isabel de Castro Beneyto

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I am a Data Scientist with extensive experience in developing and deploying machine learning models specifically for fraud prevention and risk analysis. With a strong academic foundation in survival analysis, I have transitioned to focus on Marketing Science, designing experiments that measure channel impact and optimize marketing budget allocation. My aim is to leverage data to drive strategic decision-making and enhance business outcomes.…I am a Data Scientist with extensive experience in developing and deploying machine learning models specifically for fraud prevention and risk analysis. With a strong academic foundation in survival analysis, I have transitioned to focus on Marketing Science, designing experiments that measure channel impact and optimize marketing budget allocation. My aim is to leverage data to drive strategic decision-making and enhance business outcomes.

Available to hire

I am a Data Scientist with extensive experience in developing and deploying machine learning models specifically for fraud prevention and risk analysis. With a strong academic foundation in survival analysis, I have transitioned to focus on Marketing Science, designing experiments that measure channel impact and optimize marketing budget allocation. My aim is to leverage data to drive strategic decision-making and enhance business outcomes.

Skills

Data Science

Experience Level

Data Science

Expert

Language

Portuguese

Fluent

English

Advanced

Spanish; Castilian

Intermediate

Work Experience

Data Scientist at Nubank

December 1, 2024 - Present

Designed and implemented a scalable Synthetic Control framework for measuring marketing campaign effectiveness in Brazil, significantly reducing false positive rates and increasing experiment capacity. Led causal measurement for high-value marketing campaigns using advanced experimental methods to provide accurate ROI data for budget allocation.

Data Scientist at Hotmart

May 1, 2022 - November 1, 2024

Developed and deployed an automated daily fraud evaluation pipeline, replacing a manual review process with a robust model that reduced analyst review time by 67%. Optimized fraud detection systems using linear programming, improving precision while maintaining recall stability. Managed production-ready classification models for fraud identification, significantly increasing recall and precision.

Junior Data Scientist at Bankly - Banking as a Service

January 1, 2022 - April 1, 2022

Identified financial losses from strict lifeline score thresholds and implemented a dynamic strategy that increased transaction volume while maintaining acceptable risk levels.