At Urenkoff S.A., I designed and deployed a production reconciliation system that matches payment-processor settlements against bank activity. It classifies exceptions, alerts on client funding shortfalls, and assembles certified audit support packages.
I encoded the certification rule, normalization rules, and exception taxonomy into a specification that executes consistently on every run. I moved the workflow to unattended daily operation with exception alerts and T+2 close packages, and flagged a client-data retention gap before the first live deployment.
At AT&T United States, I reconciled $9B in payment transactions and helped bring open-item aging to four business days against a seven-day maximum. With my team, I automated 97.4% of reconciliation volume and built SQL reporting pipelines and Power BI dashboards used by U.S. leadership.
At CE Consulting México, I owned full-cycle close and financial reporting for three multinational clients across four currencies. I managed treasury and tax compliance, served as the primary external audit contact, and cut monthly reporting time by 40% by automating financial models in Excel and Python.
