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fintech Intermediate 21 lessons

Payment Gateways

Process money globally. Master Stripe, PayPal, and Adyen integrations. Learn PCI compliance, webhooks, and fraud prevention.

Payments are the lifeblood of e-commerce. This course teaches the technical integration of major payment gateways. You will learn to implement Stripe Checkout, handle recurring subscriptions, and manage webhooks for asynchronous payment confirmation. We dive into PCI-DSS compliance requirements for handling card data securely and using tokenization to avoid liability. Also covers fraud detection signals (3D Secure) and handling chargebacks programmatically.

✅ 100% Free & Lifetime Access
⏱️ 5-Minute Lessons (Bite-sized learning)
🚀 21-Lesson Path (Independent modules)
📱 Mobile Friendly (Learn anywhere)
Pay Ops
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Secure Enrollment via SSL

Complete Course Syllabus

  • 1
    Gateway Basics
    Merchant accounts, gateways, and processors.
  • 2
    Stripe Integration
    Building a custom checkout flow with Elements.
  • 3
    Webhooks
    Listening for 'payment.succeeded' events securely.
  • 4
    Subscriptions
    Handling upgrades, downgrades, and billing cycles.
  • 5
    Security & Fraud
    Tokenization, PCI scope, and blocking risky IPs.

Estimated completion time: 21 lessons • Self-paced learning • Lifetime access

Career Outlook

Estimated Salary
$100k - $150k

Career Paths

Payments Engineer $110k-$160k
Backend Developer $100k-$145k
Fintech Integrator $105k-$150k

What You Will Learn

Integrate Stripe and PayPal for one-time and recurring payments
Handle Webhooks to update order status asynchronously
Implement 3D Secure for fraud protection (SCA)
Manage subscriptions and dunning (failed payment) logic
Ensure PCI-DSS compliance using tokenization

Skills You Will Gain

Payment APIs Webhooks PCI Compliance Subscription Logic Fraud Prevention

Who Is This For

Backend Developers
E-commerce Engs
Fintech Devs

Prerequisites

Web Development
API concepts

Payment Gateways FAQs

Compliance?

We teach how to offload PCI scope to Stripe.

Coding?

Yes, backend logic for payment confirmation.

Global?

Yes, handling multi-currency and local methods.

Testing?

Gateways provide 'Test Mode' credentials.

Need more info?
All Reork courses are 100% free, self-paced, and fully accessible on mobile devices. No prior experience is required. Read our full Platform FAQ.

Tech Stack & Tools

Stripe API
PayPal SDK
Postman
Ngrok

Recommended Next Steps

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Decentralized finance. DEXs, yield farming, lending protocols, and DeFi risk.

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3 recommended paths based on what you're learning

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