I will build your React Native app with Node.js backend, payments, and a security review

👨‍💻 Who I Am
I'm a full-stack and blockchain engineer who builds systems that move money.
✅ Built a multi-chain crypto exchange
✅ Built a fiat-to-Bitcoin Lightning payments platform
✅ Audited 7 platforms under authorization
⚙️ Powerful Backends
✅ Custom Node.js REST APIs
✅ PostgreSQL with indexing and row-level locking
✅ Secure login, roles, and admin tools
✅ Background jobs for payments and payouts
✅ Idempotent webhooks, so payments never process twice
✅ Push notifications and real-time updates

🎁 What You Get
✅ iOS and Android app from one codebase
✅ Clean, responsive UI
✅ Global payments: Stripe, PayPal, bank transfers, M-Pesa, and crypto 💳
✅ Security hardening and over-the-air updates
✅ Full source code and handover guide
✅ Bug fixes after delivery

📦 Packages
🥉 Basic: 3-5 screens, clean UI, basic navigation. ⏱️ 5-7 days
🥈 Standard: Basic + Node.js API, PostgreSQL, user login, up to 10 screens. ⏱️ 8-10 days
🥇 Premium: Standard + payments, admin panel, push notifications, automated deployment, and a security review report. ⏱️ Up to 15 days

🔄 How It Works
1️⃣ Message me your idea and features
2️⃣ I confirm scope, price, and timeline
3️⃣ You get progress updates every 2-3 days
4️⃣ You review, I revise, then I hand over the code

📝 What I Need
📌 A short feature description
📌 Your logo and colors
📌 Access to any services you want connected
⚠️ Please Note
App store fees and third-party costs are not included
Projects over 15 days can be split into phases
Message me before ordering so we can confirm your requirements 💬