React Native Developer

Skills Overview:
What are the top five skills and number of years of experience required to perform this job?
10+ years of React Native app development (iOS, Android)
5+ years of typescript development

What are some preferred/nice to have skills the manager is looking for?
Firm grasp of the JavaScript and TypeScript language.
Knowledge of functional programming.
Familiarity with native build tools, like XCode, Gradle etc. 
Experience with automated testing suites and transition existing React web apps to React Native.