• Test automation platform for Money Movement: end-to-end tests, API contract tests, integration test suites covering funding rails, card transactions, KYC flows, and Cash account operations. • CI/CD quality gates: design, implement, and maintain test pipelines that run on every PR and block regressions from reaching production. • Failure mode coverage: model the real failure modes — duplicate charges, partial KYC completions, webhook replay, idempotency violations, provider outages — and build tests that catch them before users do. • Performance and load testing: validate that payment flows hold up under peak load; identify latency regressions before they hit p95 in production. • Test data and environment infrastructure: own the tooling that makes tests repeatable, isolated, and fast. • Observability for test quality: track test coverage, flakiness rates, bug escape rates, and regression detection latency as real metrics with real owners.