Hello,
We have gone through your requirements and we're glad to say that we are capable enough to provide this solution to you.
We have checked all the points and we'll work accordingly on the project to make it a secure and user-friendly payment gateway.
Our Approach:
1. Design the front and back end.
2. Code the modules like virtual money account, sending payment, receiving payment, currency conversions and rates management, SMS verification, integrating different APIs to process the payments, fee calculations, money wallet, funds transfer capability, invoice generation, withdrawal management, SMS payment system, API codes generation, users management, referral and affiliate system, admin panel, sandbox accounts development.
3. Integrating all the modules together long with the admin panel.
4. Installation on our test server for testing.
5. Testing in real environment on a real server.
6. Final delivery after testing.
We've complete knowledge of the system and we'll be happy to work on this project.
Technologies that we can use to develop this system are:
1. PHP, Codeigniter / Laravel, mySQL, MVC, Ajax, Jquery, CSS, HTML5, Bootstrap 3x
2. ASP.NET, C#, MVC 4, Entity Framework, MS SQL, Ajax, JQuery, CSS, HTML5, Bootstrap 3x.
Also, we'll use SSL and MD5 or SHA for encryption techniques to make the system more secure.
Let us know which set of technologies you will prefer, we can do it either way.
Looking forward to working with you.
Thanks & Regards
Varun Mishra