Hi, I've just seen your job description and I think I can complete it perfectly.
I am very familiar Java, React Native, Objective C and Swift.
Relevant Skills and Experience
Very skilled iOS/Android/Web developer with technologies of Objective C, Swift, Java, React Native, Ruby on Rails and Firebase, I have developed several kinds of iOS/Android apps and Web sites.
Proposed Milestones
$4941 USD - mobile and web development.