Yi Zang
Independent QA tester for web, API, and release checks
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Release QA catches the last-minute regressions that smoke checks miss. I combine critical web flows with a focused API regression slice, verify fixes, and return a severity-ranked report with evidence and a release recommendation. 48-hour package: https://contra.com/s/OgrOY2Pb-48-hour-release-qa-and-api-regression-package
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API smoke QA works best when the first pass covers contract boundaries: auth failure, missing fields, invalid IDs, duplicate requests, rate-limit behavior, and error payloads. I document request and response evidence and prioritize defects by release risk. Available for a 24-hour focused API smoke review: https://contra.com/s/c2YLMmkm-24-hour-api-smoke-test-and-defect-report
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A small release QA lesson: the costly failures are often in state transitions, not the happy path. I start with refresh during payment, expired sessions, API timeouts, duplicate submissions, and reconnect behavior, then return reproducible evidence with clear severity. I have a small $15 slot for one focused web flow within 24 hours: https://contra.com/s/NPrRqOAB-30-minute-launch-smoke-check
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QA Review Portfolio: Web and API Verification
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