Can you let me know which modules you have worked on earlier and which modules you have worked on more?

I have primarily worked on the authentication and payment modules in my last project. The authentication module involved implementing OAuth2 and JWT token handling, while the payment module integrated with Stripe and PayPal APIs. I spent more time on the payment module because it required handling multiple currencies, fraud detection, and compliance with PCI-DSS standards. In both modules, I focused on writing unit tests, ensuring code quality, and optimizing performance. My experience with these modules has given me a solid understanding of secure data flow, third‑party integrations, and scalable architecture.