I don’t mean Stripe or PayPal.

I mean, how do I integrate them into my system and design my database for scalable fintech data while also ensuring scalability for clearer requirements?

Tech Stack:

• Backend:
  • Java (Spring Boot 3)
  • C# (ASP.NET Core MVC)
• Databases:
  • Oracle
  • Microsoft SQL Server
• Frontend:
  • Mainly Angular
  • In MVC cases (which have become the norm again), what should I do?

I’ve asked a lot of questions, so even if you can answer just one, I welcome it!