Hi
I have carefully understood your requirement. I can can seamlessly integrate Sunpay payment gateway into my server-side application.
I can work across platforms, building for both iOS and Android systems.
I Expert Node.JS in Mobile app for both iOS and Android .I have Experience in expense tracking, UX/UI design, mobile app development.
I have knowledge Node.JS, integrate Video and Audio call functionality, push notification integration, Android Notifications System ,in-app purchases, API calling, Google Firebase for notifications, payment gateway APIs, user authentication protocols, payment gateway integrations.
I have a 3+ exp in Mobile App Development (Java or Kotlin) , Android and IOS Plateform , React Native,Java .