Web developers are responsible for designing and developing websites and website applications. Using a variety of programming languages and web technologies, web developers manage site functionality, implement application features, and integrate security measures. Some of benefits Web development careers continue to become in demand as technology progresses, improve your critical thinking abilities, In order to program business logic or custom functionality on your website, web developers use programming languages. There are many, but the most common ones are “the top four”: PHP, ASP . NET, Java and Ruby.