Hernan Aronson
Turning data into clear, actionable business insights using SQL, Python and BI tools.
BI & Data Analyst • SQL • Python • Power BI
SQL & Analytics
Data querying, joins, aggregations and KPI-focused analysis to support business decisions.
BI & Dashboards
Power BI dashboards with clear storytelling, clean data models and stakeholder-ready insights.
Python for Data
Exploratory data analysis, feature engineering and practical analytics workflows.
Featured Projects
Selected projects focused on BI, analytics and decision support.
SPY ROI ML Model
Forward-return analysis using engineered signals and model evaluation.
Dynamic Pricing & Quoting Tool (Excel + VBA)
BOM-driven costing + bundles + guardrails + PDF/Excel export for a furniture manufacturer.
Telecom Churn ML
Churn prediction with insights on key drivers for retention strategy.
Happy Insurance BI
Power BI dashboards with star schema modeling and KPI drilldowns.
