swift/kotlin developer

I'm looking for a developer to work with me on my social media app the app is **complete** but has some issues Mainly UI and API (we will work screen by screen method and you will get paid based on that) and we will continue to work based on the previous work you are doing I'm looking for high standard developers only matching the UI of the app with the design file is essential fixing all api related and swift or kotlin issues I'm looking for 1 developer to work with. Here is the first screen from the app and difference from the design file