I will integrate stripe paypal revenuecat and payment webhooks


About this gig
Need a seamless and secure payment integration for your website, SaaS, or mobile app?
I am a Senior Full-Stack Engineer with 10+ years of enterprise experience. I specialize in integrating Stripe, PayPal, Apple Pay, and RevenueCat (In-App Purchases) to help you monetize your product with zero friction.
What I Can Set Up For You:
- Stripe Checkout & Elements: Custom credit card forms, Apple Pay, Google Pay.
- Recurring Subscriptions: Monthly/yearly billing plans with automated trial periods.
- Stripe Webhook Handlers: Secure database updates on payment success, failed renewals, or cancellations.
- Stripe Customer Portal: Allow users to easily manage, upgrade, or cancel subscriptions.
- In-App Purchases (iOS & Android): RevenueCat, Apple StoreKit, and Google Play billing.
Why Choose Me?
- High security standards (PCI compliance and secret key safety).
- Clean code and end-to-end testing in sandbox/live mode.
- 100% satisfaction guarantee.
Please message me before ordering to confirm your tech stack!
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Get to know Antonello Posa
AI Mobile App Engineer
- FromSpain
- Member sinceApr 2025
- Last delivery1 year
Languages
English, Italian, Spanish
My Portfolio
FAQ
Do you test the payments before going live?
Yes! I perform complete end-to-end testing in sandbox/test mode (successful charges, failed payments, subscription renewals, webhooks) before switching to production.
Can you integrate mobile in-app subscriptions with RevenueCat?
Yes, I can set up RevenueCat for iOS (Swift/SwiftUI) and React Native, including paywalls, entitlement checks, and server-side webhook sync.
Is my Stripe secret key safe
Yes. Secret keys are never hardcoded and are always stored securely in environment variables on your backend.
