Payment Gateways

I've worked with nearly every payment service provider out there—Adyen, Komoju, Braintree, PayPal, Boa Compra, Stripe, and more. I don't lock you into one. I build systems that work with whatever gateway you choose, or help you choose the right one. Your business, your payment stack, your rules.

One Integration. Any Gateway.

Switching payment providers shouldn't mean rebuilding your entire payment stack. I build gateway-agnostic layers that sit between your business and any PSP. One integration. One API. One set of business rules. Whether you're on Adyen, Stripe, Braintree, PayPal, Komoju, Boa Compra, or a custom gateway—your application talks to my layer, and my layer talks to them. Change providers? Change one configuration. Your code stays the same.

Abstract the Gateway. Liberate Your Code.

Every gateway has its quirks. My abstraction layer hides them all. Whether you're on Adyen, Stripe, Braintree, PayPal, Komoju, Boa Compra, or a custom integration, your application talks to one consistent API. Change providers? One configuration. Add a new region? One integration. Your payment logic stays clean. Your business stays agile.

Gateways I've Worked With

Direct Acquirer Integrations — Raw connections to Visa, Mastercard, JCB and other card schemas. No middleman. Full control.
Direct Bank Integrations — Custom connections to banking institutions for real-time payments, reconciliation, and settlement.
Direct Schema Settlement Files — Raw settlement reconciliation. No PSP abstraction. Direct from the source. Handled at enterprise scale.
Adyen — Global reach, unified commerce. Built high-volume integrations for enterprise-scale transactions.
Stripe — Developer-first, flexible. Integrated for startups and scale-ups alike.
Braintree — PayPal's powerhouse. Built solutions for businesses needing PayPal + cards in one.
PayPal — The classic. Integrated everything from Express Checkout to custom PayPal flows.
Klarna — Buy Now, Pay Later specialist. Integrated BNPL flows for seamless checkout.
Worldline — End-to-end payment services. POS, online gateways, merchant acquiring.
Global Collect — International payment specialists. Global, local, and alternative payment methods.
Checkout.com — Enterprise-grade processing. Built for scale, global reach, high performance.
Airwallex — Cross-border payment specialists. Global treasury and payment infrastructure.
Komoju — Japan specialists. Integrated local payment methods for the Japanese market.
Boa Compra — Latin America experts. Local payment methods for Brazilian and LATAM markets.
Cybersource — Visa's enterprise platform. High-volume, multi-channel, global payments.

Plus many more. The point isn't how many I've worked with. It's that I've learned what makes each one tick—and what makes them work together.

How I Build Gateway Integrations

Abstraction Layer — A unified API that shields your business from gateway-specific quirks. Your code doesn't know if you're on Adyen or Stripe. It just works.
Consistent Data Models — Transactions, customers, refunds, disputes—all normalized. Same structure, same behavior, regardless of the underlying gateway.
Error Handling & Retries — Gateways fail. Networks drop. I build resilient systems that handle timeouts, retry intelligently, and never lose a transaction.
Webhook Normalization — Every gateway sends webhooks differently. I normalize them into one consistent event stream your system can trust.
Multi-Gateway Routing — Route transactions based on currency, region, payment method, or business rules. Use one gateway for cards, another for wallets, another for LATAM. All behind one interface.

Why Gateway Agnostic Matters

Lock-in is a trap. When your code is tightly coupled to a single gateway, you can't negotiate better rates. You can't add new payment methods without rebuilding. You can't failover when a gateway has an outage. My approach gives you freedom:

Switch Providers Overnight — Change a configuration. Not a codebase.
Add New Gateways in Days — New region? New payment method? Add a gateway, configure routing, done.
Multi-Gateway Routing — Best rates for each region. Redundancy when gateways fail. Flexibility your business deserves.
One Reconciliation Layer — All transactions, all gateways, one place. Your finance team will thank you.

Gateway Agnostic

One integration. Any gateway. Your code doesn't know the difference—and doesn't need to.

Global Experience

Adyen, Stripe, Braintree, PayPal, Komoju, Boa Compra—I've built integrations across regions, currencies, and use cases.

Resilient by Design

Retries, timeouts, webhook normalization, failure recovery. Systems that don't drop transactions—even when gateways do.

Freedom to Choose

Best rates, best fit, best region. Your payment stack should serve your business, not lock you in.

Payment Gateways: What People Ask

If you need anything, don't hesitate to contact me—I'm always happy to help!

Which payment gateways have you worked with?

Adyen, Stripe, Braintree, PayPal, Komoju, Boa Compra—and many more.

I've built integrations across the payment landscape, from global enterprise gateways to region-specific specialists. The real value isn't the list—it's the abstraction layer that makes them interchangeable.

Can I switch gateways without rebuilding my code?

Yes. That's the point of gateway-agnostic architecture.

I build an abstraction layer between your business and any gateway. Your code talks to my layer. My layer talks to the gateway. Switch providers? Change one configuration. Your code doesn't change. Your business doesn't stop.

What about multi-gateway routing?

Built in. Route transactions based on currency, region, or business rules.

Use Adyen for Europe, Stripe for North America, Komoju for Japan, Boa Compra for Brazil. All behind one API. All managed through configuration. Your customers get the best payment experience. You get the best rates.

How do you handle gateway failures?

Failover. Retry. Never lose a transaction.

Gateways have outages. Networks drop. I build resilient systems with intelligent retry logic, fallback routing, and circuit breakers. If one gateway fails, we route to another. If a transaction times out, we retry with exponential backoff. Your revenue doesn't depend on any single provider.

What about webhooks? Every gateway does them differently.

I normalize them. One consistent event stream.

Webhooks are chaos. Each gateway has different formats, different events, different retry behaviors. I build a normalization layer that converts every webhook into a consistent event structure. Your system handles one format. I handle the rest.

Can you integrate with custom or legacy gateways?

Absolutely. If it has an API, I can build it.

Not every business uses modern gateways. Some have custom solutions, legacy systems, or region-specific providers. I've built integrations for all of them. If your gateway has documentation, I'll make it work. If it doesn't, we'll figure it out together.

How do you handle reconciliation across multiple gateways?

One unified view. Your finance team will thank me.

Reconciling transactions across multiple gateways is a nightmare. I build unified reporting layers that aggregate transactions, fees, payouts, and disputes into one consistent view. One source of truth. Your finance team can finally sleep at night.