freelancer for firebase firestore apps nextjs developer for hire nextjs seo optimization react signals state management mern stack development company react devtools ai assistant website design responsive web design freelancer for headless ecommerce sites dotnet mvc developer web development services reactjs freelancer react query data fetching node.js development freelancer https://jungle-king-pinball-machi68913.blogrenanda.com/42839948/not-known-details-about-software-developer-edmonton