POS QA

Job Description:

• Drive end-to-end testing across legacy and modernized systems, including retail payment flows, POS transactions, and settlement/reconciliation processes.
• Execute comprehensive testing covering POS devices, ISO 8583 message validation, payment authorization, and integration with external payment networks and FIS systems.
• Build and execute automation frameworks for functional, integration, regression, and performance testing, aligned with CI/CD pipelines.
• Validate transaction integrity, data consistency, and high-volume retail scenarios ensuring system reliability across in-store, mobile, and backend systems.