Need a secure, production-ready, custom software application engineered from scratch? I will build your complete digital product.This service includes a modern, pixel-perfect frontend interface built with React.js and Tailwind CSS, a scalable server architecture built with Node.js and Express.js, and structured cloud databases using MongoDB Atlas or Firebase Firestore.I specialize in constructing multi-tier user authentication gateways (JWT / Firebase Auth) and configuring seamless payment system integrations, including local Paystack APIs for Mobile Money (MoMo) and card processing.