When I first started looking into payment systems, I didn’t expect compliance to be such a big part of the process. It seemed like something technical teams would just “handle in the background.” But after digging a bit deeper, I realized how important it is to understand [payment gateway compliance requirements](https://spd.tech/fintech-development/payment-processing-compliance-the-existing-standard-regulations-and-how-to-meet-them-best/), especially if you’re working on anything that involves real transactions. Seeing how these requirements connect to system design made everything feel much more structured.