freelancer for app refactoring and cleanup mern stack development company full stack web developer hire full stack developer react edge computing freelancer for headless ecommerce sites freelancer for realtime dashboard custom web application development reactjs freelancer react query data fetching technical seo services vue.js development mobile-friendly website website performance https://are-web-developers-softwa68890.blogsumer.com/35527702/the-2-minute-rule-for-cheapest-software-developers-in-the-world