A web developer is basically a programmer who specializes in the development of internet applications. It involves web designing, coding, and modifying websites. It can range from a simple text page to complex sites with different graphics.
The most important thing for a company (of any scale) is to have an impressive website. The smart thing to do would be to hire a web developer from places like Digi Interfaces. They usually provide you with all the required services for creating a basic website.