I need a full-stack developer who can take my real-estate loan agency from spreadsheets to the App Store and Google Play with a single, polished product. The core idea is simple: buyers and sellers create profiles, list properties, and talk to one another, while my staff monitors everything and helps move each deal forward. Core workflow • New users register as Buyer, Seller or Agency staff. A clean onboarding flow with secure authentication is essential. • Sellers post property details (photos, price, brief description, loan terms). • Buyers browse those listings through a fast search engine with filter controls (price range, location, property type, loan options, etc.). • When a buyer likes what they see, in-app messaging lets the two sides start talking instantly—no emails or phone numbers exposed. • Staff accounts can approve or edit listings, step into chats when needed and flag any misuse. Technical scope – One codebase that ships to both iOS and Android. I’m open to Flutter, React Native or similar frameworks as long as the final builds meet Apple and Google publishing requirements. – A lightweight, scalable backend with API endpoints for auth, listings, search and chat; push notifications for new messages or status changes; and a simple web dashboard for agency staff. – Clean, modern UI that feels native on each platform and performs smoothly on mid-range devices. – Source code, documentation and store-ready builds are part of the hand-off. Acceptance criteria 1. Successful build installs on the latest iOS and Android versions with no critical bugs. 2. Registration, property posting, filtered search and messaging all function end-to-end. 3. Agency staff can moderate listings and conversations from the dashboard. 4. Code passes a basic security review (no hard-coded keys, input properly sanitized). 5. Clear instructions provided for future maintenance and store resubmission. If you have shipped similar marketplace apps before and can work from concept to store approval, let’s talk timelines and milestones.