Hi, sir.
Thank you for your job posting.
I think I can be the right candidate for your project.
Because I am familiar with React Native.
I have 4 years of experience in RN.
I am familiar with redux, redux-thunk, axios, expo, react-navigation, native base, code push and so on.
You can check my skills during an interview, I think.
And also I am familiar with back-end development.
I mastered PHP, Node.js/ExpressJS for back-end.
.... ...
I hope to work for you.
Best regards.