- Design and own test infrastructure for financial-grade systems.
- Develop test automation platforms including API contract and integration tests.
- Implement and maintain CI/CD quality gates to block regressions.
- Model and test failure modes like duplicate charges and webhook replay.
- Conduct performance and load testing on payment flows.
- Manage test data and environment infrastructure for repeatability.
- Track metrics like test coverage, flakiness, and bug escape rates.
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