Projects
Each project answers a business question, is packaged with a case study, executive summary, deck, and README, and only claims what the data supports. Quantitative claims carry a chip naming the artifact they come from.
Six SQL queries on a Brazilian marketplace of 93,358 customers. Found a 97% one-time purchase rate, ruled out product and service as causes, identified an 81-day reactivation window, and surfaced a seller-level retention gap of 4 to 8 times the platform average.
Read the case SQL · ExcelAn order-level SQL investigation of 31,047 rows into a revenue decline, ending in a quantified recovery recommendation and a ten-page case study.
Read the case Power BI · DAXA four-page Power BI drill-down on a 51,000-row, 24-column retail dataset, built and presented as an executive profit briefing with a companion narrative deck.
Read the case Excel · Power Query · Power BIAn emergency department performance analysis built in Excel with an interactive dashboard, a data audit report, and an executive summary covering admissions, wait patterns, and departmental load.
Read the case Tableau · ExcelFifteen fiscal years of TfL crime data, 904,790 reported incidents, analyzed in Tableau across transport modes, seasonal patterns, and long-run trend, with resourcing recommendations.
Read the case