Looking for a job

Marcos Silva

@marcossilva1

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I build predictive models and dashboards that turn business data into actionable decisions.

Brazil

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What I'm looking for

I'm looking to apply data analysis, machine learning, KPI monitoring, and dashboard development to support data-driven business decisions.

I've built end-to-end data projects that turn complex datasets into predictive models and practical business recommendations.

In EBAC's Bank Fraud Detection capstone, I developed a machine learning pipeline for credit card fraud, addressing class imbalance and evaluating models with precision, recall, F1-score, and AUC-PR to support deployment decisions.

I've also analyzed educational underperformance data through the Semantix partnership, built customer purchase-propensity models with 91% accuracy, and achieved a 0.78468 Kaggle score predicting Titanic survival.

My background in e-commerce and retail operations brings hands-on experience with KPIs, conversion optimization, financial analysis, dashboards, inventory data, and data-driven operational decisions.

Experience

Work history, roles, and key accomplishments

Digital Entrepreneur / E-commerce

Self-Employed

Jan 2021 - Dec 2025 (4 years 11 months)

Built and managed an online store on e-commerce platforms, focusing on sales performance analysis and conversion optimization. Conducted financial and cost analysis using Excel, managing profit margins, product pricing, and operational budget.

Ecommerce Sales Analysis Conversion Rate Optimization Financial Analysis Excel KPI Monitoring A B Testing Data Driven Decision Making

Assistant Store Manager

Brownieria

Jan 2013 - Dec 2019 (6 years 11 months)

Performed periodic inventory audits and inventory data analysis, supporting loss reduction and minimizing stockouts. Managed daily system startup, sales data registration, reconciliation, and audit processes.

Inventory Management Data Analysis Excel POS systems Corporate Trainer Cross Functional Communication