React Native / Expo Developer for GOKAZ

We are seeking an experienced React Native / Expo developer to audit, improve, complete, and deploy an existing ride-hailing mobile application called GOKAZ. The app is already functional in several areas, and we are not looking for a complete rebuild. The developer will review the source code, identify bugs and missing features, improve the UI/UX, complete rider and driver workflows, verify admin functionality, secure and optimize Firebase, test the booking and payment flow, prepare the app for production, and assist with Android and iOS deployment. Please share examples of similar apps you have worked on, along with relevant experience in React Native, Expo, Firebase, Maps/GPS/MAPBOX, real-time tracking, and Stripe.