I will test your payment, checkout, and webhook flows for bugs

China

I speak Chinese, English

Senior QA Engineer

I am a senior QA engineer with over 17 years of experience in enterprise software and payment platform testing. I specialize in API testing, complex integration flows, and Linux VM environments, with ...
About this Gig

Do you need confidence that your payment flow works before release?


I have 17+ years in software QA, including 11 years leading QA for a cross-border payment platform. I test the full transaction journey, not just the happy path.


I can test:

- Checkout and payment success

- Declined, failed, expired, and canceled payments

- Retry and duplicate-submit behavior

- Refunds, partial refunds, and chargebacks

- Subscription renewal and cancellation

- Stripe / PayPal / wallet-style integrations

- Webhook delivery, retries, and duplicate events

- Balance, transaction history, and reconciliation

- API responses and frontend/backend state consistency


You will receive a structured report with reproduction steps, expected versus actual behavior, severity, screenshots, API or log evidence where available, and QA acceptance criteria.


Please contact me before ordering if your integration uses a provider not listed above.

```

Testing application:

Software

Device:

PC

•

Mac

•

Linux

•

iPhone

•

Android mobile phone

My Portfolio