Experienced mobile app developer on native and hybrid iOS/Android platforms. For the past years, I have been focusing on native iOS app and React Native/Flutter app development. My ability is to build a new app from scratch based on idea/specification/design to publishing on App Store and Google Play, and to improve functions/features on an existing app to make millions of users. Also long expereince and expertise on web development, mainly React/Angular as frontend, PHP/Node.js as backend, WordPress as CMS.