How do you do?
Thank you for your job posting.
I read your project project very carefully.
I am full react-native(ios,android) and backend expert.
I'm a senior React Native expert with several years experience and I've full skilled in Firebase too.
I can implement firebase to the mobile apps for User auth, real-time location sharing on the map, real-time chat, push notification and so on for both of Android and iOS.
I've experienced in React Native for several years and have web skill such as frountend,backend,codeigniter,php,mysql,jQuery,javascript,css and html.
Also I'm ready to start the work on your job now.
So please contact me and share more detail via chat.
Great regards.