freelancer for firebase firestore apps freelancer for app refactoring and cleanup back end developer react suspense data fetching freelancer for design to code web development company web design company web design services freelancer for machine learning integration technical seo services react 18 features react hydration strategies responsive web design https://gottliebjunglekingpinball00730.wizzardsblog.com/36342894/everything-about-web-developer-need-coding