At PGW, I test payment widgets end to end for deposit and withdrawal flows, including configuration, redirects, localization, and error messages. I also test REST and GraphQL APIs in Postman and validate request and response data.
I created AI-assisted Postman scripts to verify merchant credentials, reducing a task from about 60 minutes to 5. I also created a local HTML tool to sort test users by country and currency, cutting that task from about 90 minutes to 5.
At Praxis, I tested integrations between a payment orchestrator and external PSPs for card payments and APMs. I validated API payloads and payment flows, and communicated with PSP support teams about integration issues and differences between documentation and actual behavior.
At Unlimit, I tested payment and transaction flows in SmartVista, including banking operations, and investigated payment incidents. Earlier, at BI Telecom LLC, I tested back-office systems for subscriber transactions, billing, invoicing, and refunds.
