Regression testing & ledger validation platform

Impact: Validated 7M+ accounts across 100+ attributes; de-risked migration

Problem Large platform migration with material financial risk required evidence that new behavior matched business rules and legacy outcomes where intended. Approach • Delivered a data-driven comparison tool to evaluate 7M+ accounts across 100+ attributes. • Defined sampling and risk-based validation, focusing on high-impact segments and edge cases. • Partnered with finance and engineering to reconcile differences and codify rule intent. Outcomes • Confidence in parity where required and clear documentation where the new platform intentionally diverged. • Faster, auditable sign-off for migration readiness.