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QBS Co.
Centralized payment integration middleware developed at QBS Co. integrating the Fuelinks payment gateway across both Vibe product and BLUE product platforms.
Payment Gateway IntegrationFuelinksMiddlewareREST APIsWebhooksIdempotencyTransaction ReconciliationMicroservices
Engineered a resilient, centralized payment integration middleware at QBS Co. to orchestrate secure transactions and payment processing via the Fuelinks payment gateway. The middleware serves as a unified abstraction layer connecting Fuelinks to both the Vibe product and the BLUE gas cylinder logistics platform, managing checkout initiation, webhook reconciliation, idempotency, refund processing, and transactional settlement.
Directly coupling individual products (Vibe and BLUE) to third-party payment APIs led to fragmented transaction logic, inconsistent reconciliation, and repeated gateway integration overhead.
Architected a centralized payment middleware service integrating the Fuelinks payment gateway, providing unified REST/webhook interfaces, transaction status state machines, idempotent request handling, and automated payment verification for both Vibe and BLUE.
Standardized end-to-end payment processing across Vibe and BLUE products, enabling reliable checkout flows, real-time transaction confirmations, and automated webhook reconciliation with Fuelinks.
