Front-end web development is the development of the graphical user interface of a website, through the use of HTML, CSS, and JavaScript,
Back end is the operations part of a business. In other words, it is the part that customers and members of the public rarely see or hear. Back end refers to the 'behind the scenes' operations. ... Back end departments or offices provide the services that allow businesses to function.
Full Stack Developers have a broad skill set and extensive knowledge base. Thus, one needs years of experience in software development to earn the title of a Full Stack Developer. They are highly valued by large companies and small startups alike..