Complete Lovable Platform Development

I have already built a platform using Lovable and completed most of the frontend, pages, dashboard, and user flows.

I am looking for an experienced developer to complete the technical implementation, including payment gateway integration, subscription management, free trial logic (24-hour trial), user authentication, database setup, backend integration, admin dashboard functionality, and secure account management.

The platform is intended for a global audience, so I need a solution that supports international customers, multiple currencies, and worldwide subscriptions. Please recommend the most suitable payment gateway and subscription infrastructure for a global launch, including support for major markets such as North America, Europe, the Gulf region, Japan, and other international markets.

Please provide:

* Similar projects you have worked on
* Your recommended technical stack
* Recommended payment solution
* Estimated timeline
* Estimated cost

The goal is to make the platform production-ready with secure payments, subscriptions, and user management.