Ahmed H.

Top Rated Flutter & Backend Engineer | Secure Payments, AI & Real-Time Systems I am a Top Rated Flutter developer specializing in production-grade mobile applications. I help clients scale their MVPs into robust products by implementing secure payment systems, intelligent AI features, and scalable backend infrastructure. Core Expertise: Payment Systems: Stripe Connect (marketplaces, splits, escrow), PayPal Disbursements, RevenueCat subscriptions, and server-side webhook validation. AI Integration: OpenAI/Gemini endpoints, smart caching, streaming responses, and backend-driven recommendations. Real-Time Infrastructure: Live tracking (geospatial queries, background location), Google Maps SDK, and optimized Firestore/Node.js architectures. Backend Development: Node.js, MongoDB, SQL, Firebase, Supabase, REST APIs, and secure authentication. Why Work With Me: Production Focus: I build for scale, security, and maintainability, not just functionality. Transparent Process: Clear architecture planning before coding begins. Reliable Delivery: Documented code and consistent communication. Technical Stack: Flutter, Dart, Node.js, MongoDB, SQL, Firebase, Supabase, Stripe, PayPal, Google Maps API. Rate: $20/hr. Message me with your project details. I will provide a clear assessment of what is needed to get your app to production.