A web engineer is a developer who represents considerable authority in, or is explicitly occupied with, the advancement of World Wide Web applications utilizing a customer server model. The applications normally use HTML, CSS and JavaScript in the customer, PHP, ASP.NET (C#), Python, Node.js, Go or Java in the server, and http for correspondences among customer and server. A web designer might have some expertise in customer side applications (front-end engineer), server-side applications (back-end engineer), or both (full-stack designer). A web content administration framework might be utilized to create and keep up with web applications.