Applied knowledge

Articles and case studies

Real case studies by Henry Mariño on data analytics, automation, marketing and applied AI, explained step by step.

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Article / case study

Ecommerce Returns & Profitability Analytics

End-to-end ecommerce analytics project focused on returns, profitability, product performance, acquisition quality, and fulfillment. I built the analytical pipeline from PostgreSQL and Python through reusable data marts and an interactive Metabase dashboard, then reconciled dashboard metrics directly against SQL before publishing the final analysis.

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