In my ConnectSphere churn analysis, I joined five source tables to show that month-to-month fibre customers accounted for 69% of monthly billing lost to churn. I tested whether price explained the gap, ruled it out, and recommended a holdout-tested contract offer.
On my GA4 e-commerce funnel project, I modelled 4.3 million events and traced a silent join failure that obscured $362,110 in item revenue. I reconciled the figures to source data and built a tested dbt pipeline, with findings documented for non-technical stakeholders.
