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Payments Gateway Processing

⬢ LIVELLO 2Tecniche
Alto
Impatto sullo stipendio
4 mesi
Tempo di apprendimento
Medio
Difficoltà
—
Carriere
In sintesi

Payments gateway processing is the art of integrating, configuring, and maintaining payment platforms (Stripe, PayPal, Square) that handle customer transactions. Used by fintech engineers, backend developers, and payment ops teams. Salary band £60k-£140k (UK mid-level). Learn in 3-4 months by combining PCI-DSS fundamentals with hands-on API work. Sits between security-fundamentals and payment-orchestration.

Cos'è Payments Gateway Processing

Payments gateway processing is the intersection of backend engineering and financial compliance. It's the skill of integrating third-party payment processors (Stripe, PayPal, Adyen, Square) into applications so customers can buy things. You manage API authentication, handle webhooks, reconcile transactions, manage failed payments, and ensure PCI-DSS compliance. Payment processing isn't just about making a API call, it's orchestrating a complex dance: authorization, settlement, disputes, refunds, currency conversion, and regulatory compliance. Most applications get it wrong, losing 5-10% of revenue to failed payments, chargebacks, and poor error handling.

🔧 STRUMENTI ED ECOSISTEMA
Stripe APIPayPal SDKSquare CommerceBraintreeAdyenPCI Compliance ToolsWebhook Testing (ngrok)Payment Analytics Platforms

💰 Stipendio per regione

RegioneLivello baseMidLivello esperto
USA$85k$140k$200k
UK£50k£85k£130k
EU€48k€80k€120k
CANADAC$75kC$125kC$180k

❓ Domande frequenti

Do I need to store credit card numbers?
No, and you must not. Use tokenization instead. Payment gateways handle card storage, you store tokens. This keeps you PCI-compliant and out of liability.
What's the difference between Stripe and PayPal?
Stripe focuses on developer experience with superior APIs; PayPal has broader merchant adoption. Stripe dominates startups/SaaS, PayPal dominates marketplace/high-volume retail.
How do I handle failed payments?
Implement retry logic (exponential backoff), webhook handlers for async confirmations, and clear user messaging. Most failures are transient; retries recover 70%+ of revenue.
What is PCI compliance and why does it matter?
PCI DSS is industry-standard security for handling payment data. Non-compliance risks massive fines and merchant account termination. Use tokenization to minimize your scope.
How do I test payments in development?
All major gateways provide sandbox environments with test card numbers (4242... for Stripe). Use webhook simulation tools to test payment callbacks before production.

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