What are the competences for middle React Native developer?

#react #reactnative #mobile #discuss

Hey guys!
I wrote a post in my blog and made a research of techskills a React Native developer should have. Here it is:

Current JavaScript standards: ECMAScript2015 (aka ES6), ECMAScript2019 (aka ES10)
An extended set of JavaScript and Typescript
React Native Libraries: React-Router, Redux, Redux-Thunk, Redux-Saga, GraphQL
Package managers: NMP, Yarn
JavaScript extensions: JSX
Tools to help maintain code style: ESLint, TSLint, Prettier

Discussion
Did I miss something? What competences should a React Native developer have in a middle stage? Can you share your experience.