Payment Solutions Integration

When it comes to online payments, it’s not just important “that it works.” It’s important that it works transparently, quickly, reliably, and without surprises. We integrate payment systems so that neither the developer, nor the business, nor the user has to think twice — everything happens smoothly, safely, and stably.

We’ve had to connect classic payment gateways, crypto providers, and multi-currency wallets with different logic and geography. We know where the pitfalls are, which banks and providers are best avoided, and how to properly build payment logic in general.

What we do:

• Integration of popular payment systems: Stripe, CloudPayments, YooMoney, PayPal, LiqPay, Fondy, Adyen, etc.

• Connection of bank acquiring (including international and regional solutions)

• Configuring recurring and subscription payments

• Working with Apple Pay / Google Pay via web and mobile SDKs

• Integration of crypto wallets and payment APIs (USDT, BTC, ETH, etc.)

• Creating your own billing system with flexible logic: commissions, multicurrency, conversions

• Logging, notifications, anti-fraud checks, protection from duplicates and cancellations

Important details that distinguish a reliable payment system from a headache:

• Client and server side validation

• Signatures, signatures, protection from tampering

• Processing "hung" statuses (and how not to lose transactions)

• Webhooks and failover processing

• Real-time notifications

• Test environments and sandboxes without losing logic

• Backup channels in case of failure of the main provider

How we approach payments:

Just embedding a form is not a problem. The problem is to make everything happen:

• without delays
• with full data protection
• with minimal load on the business
• with the ability to grow and scale

We design the architecture so that the payment logic is separated from the main business logic, easily changed and scaled. Need to connect a second provider? Change a bank? Implement an affiliate program?

Yes, without rewriting half the project.

Where proper integration is especially important:

• Online stores, marketplaces, subscription services

• Platforms with internal billing and balances

• Fintech and crypto products

• Educational platforms with flexible tariffs

• Mobile applications with in-app purchases and access

When the payment system works correctly, it is not visible. Everything is simple, everything is clear, the money goes where it should, and on time. That is exactly what we do.