freelancer for firebase firestore apps react streaming ssr nextjs development company react automatic batching freelancer for cross-browser testing mern stack development company full stack web developer dotnet core development freelancer for ai powered web apps web development agency node.js development freelancer for app deployment and hosting freelancer for render.com https://reidxcwgm.xzblogs.com/76856829/new-step-by-step-map-for-software-developer-vs-web-developer