Discipline
Data analytics
I build decision tools from governed data and make every assumption visible.
Analytics engineering / margin decisions
Margin Control Tower
When weekly contribution margin changes, this browser tool starts from a hash-verified Olist aggregate, traces discounts, returns, cost of goods, and fulfillment, then tests a bounded promotion scenario before recording an action.
15,809 Olist aggregate rows99,441 source orders10 fail-closed contract checks
Risk analytics / policy governance
Credit Policy Lab
This browser lab starts from a hash-verified Lending Club backtest and keeps offline scores separate from expected-loss math, policy thresholds, review capacity, monitoring, and the final recorded decision.
120,000 scored loans24,000 later backtest rowscapacity-gated policy audit