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Thiago Vieira

@thiagovieira

Senior Data Scientist at Farmers Insurance, improving auto loss prediction and building machine learning models for production.

Brazil
Message

At Farmers Insurance, I develop statistical and machine learning models for auto insurance loss modeling. I analyze insurance data to identify loss drivers and risk patterns for claim frequency and severity.

At Nestlé, I delivered over R$500K in business value through data transformation and automation pipelines. I also built an S-curve model to identify a selling price that maximizes revenue without reducing sales.

At Vale S.A., I built a model that detected about 60% of high-emission events, triggering automated fog cannons for dust suppression. I created CI/CD pipelines for continuous model retraining and deployment, and delivered a solution scalable to 43 mining/courtyards units.

At Trademaster, I developed credit risk models that achieved 85% accuracy in default prediction and reduced exposure by about R$2M. I’m pursuing a Master's degree in Computer Science at UFJF, with thesis proposals in time series forecasting and anomaly detection.

Experience

Work history, roles, and key accomplishments

Farmers Insurance logoFI
Current

Senior Data Scientist

Farmers Insurance

Jan 2026 - Present (10 months)

Develop statistical and machine learning models for auto insurance loss modeling, improving loss prediction accuracy. Analyze large-scale insurance datasets to identify key loss drivers and risk patterns for claim frequency and severity.

Nestlé logoNE

Data Scientist

Mar 2025 - Jan 2026 (10 months)

Delivered over R$500K in business value through data transformation and automation pipelines. Built an S-curve model to identify the optimal selling price that maximizes revenue without reducing sales.

Vale S.A. logoVS

Data Scientist – Machine Learning Engineer

Jun 2024 - Feb 2025 (8 months)

Built an ML model detecting ~60% of high-emission events, triggering automated fog cannons for dust suppression. Created CI/CD pipelines integrating Azure ML and Azure DevOps for continuous retraining and deployment.

TR

Data Modeler – Data Analyst

Trademaster

Nov 2022 - Jun 2024 (1 year 7 months)

Developed credit risk models achieving 85% accuracy in default prediction, reducing exposure by ~R$2M. Conducted ad-hoc and BI analyses guiding risk mitigation, achieving half-million reais in results.

Education

Degrees, certifications, and relevant coursework

Universidade Federal de Juiz de Fora logoUF

Universidade Federal de Juiz de Fora

Master's Degree, Computer Science

Currently pursuing a Master's degree in Computer Science, with thesis proposals in time series forecasting and anomaly detection.

CR

Centro Universitário de Volta Redonda

Bachelor's Degree, Production Engineering

Bachelor's Degree in Production Engineering from UniFOA.

Alura logoAL

Alura

Data Science Training, Data Science

Completed Data Science Training.

Data Science Academy logoDA

Data Science Academy

Python Fundamentals for Data Analysis 3.0, Data Analysis

Completed Python Fundamentals for Data Analysis 3.0.

Universidade de São Paulo logoUP

Universidade de São Paulo

Natural Language Processing, Natural Language Processing

Completed Natural Language Processing certification.

Stanford University logoSU

Stanford University

Advanced Learning Algorithms, Machine Learning

Completed the Advanced Learning Algorithms certification.

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