Angular is the platform to develop the user interface of web applications. It is a platform and framework for building single-page client applications using HTML and TypeScript. It implements the core and optional functionality as a set of TypeScript libraries that can be implemented in the applications.
As this language is so vast in its application, it is not possible for every software developer to know this language and have a good hold on it. But some developers have full exposure and experience in this language. So, it is best to hire an angular developer when there is any use of angular in the application.