SQL Customer Segmentation and Reporting at Citi Cards

SQL and SAS customer modeling for credit-card decisions

The problem Risk, pricing, and marketing teams needed usable customer segments, predictive decision support, and clearer portfolio reporting.

My work At Citi Cards, I developed predictive models and customer-segmentation frameworks using SAS and SQL. I also built and automated Excel-based dashboards and forecasting tools for executive reporting and portfolio management.

The result The models and reporting tools supported campaign, risk, and portfolio decisions. This is a summary of historical work; no internal data, model performance figures, or proprietary code are included.