Hello,
I have gone through your project description and your link application. I understood your project scope that you want to configure the app with the e payment service.
We have the expertise in the payments API integration and we already do it for many client if you join us we love to implement for you the payment configuration.
I am an expert mobile application developer with 6+ years of experience in developing mobile apps. I have a very good understanding of Flutter, Dart, Java, Kotlin, Swift, Objective-C Android studio, Rest Api`s, Payment gateways, SDK's and other technicalities.
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