freelancer for firebase firestore apps react streaming ssr nextjs development company back end developer react signals state management web design freelancer for multi-language app support freelancer for headless ecommerce sites custom web application development web design services node.js development react development responsive web design mobile-friendly website react ecommerce web... https://griffinxuoka.bloguetechno.com/about-web-developer-online-courses-coursera-71526579