react developer full stack development front end developer nextjs developer for hire react compiler optimization freelancer for multi-tenant saas apps freelancer for pixel perfect development freelancer for headless ecommerce sites freelancer for realtime dashboard web development services react query data fetching node.js development freelancer for ai assistant integration vue.js https://software-developers-descr43962.blog-gold.com/47720122/new-step-by-step-map-for-job-opening-for-web-developer-in-new-york