freelancer for supabase postgres apps nextjs development company react automatic batching react compiler optimization freelancer for multi-tenant saas apps react suspense data fetching freelancer for design to code react wasm integration react edge computing web development company web design company custom web application development zustand react state library web https://collinyplmn.look4blog.com/74404497/new-step-by-step-map-for-software-developer-vs-web-developer