Hiring a Markdown developer comes with several advantages. First, Markdown is a lightweight markup language with plain-text formatting syntax, which makes it easier and quicker to write and edit text. This can significantly enhance productivity and efficiency in web development projects.

Second, Markdown's simplicity makes it an excellent tool for content creation. It allows developers to focus more on the content rather than the formatting, making it easier to maintain consistency across different platforms. This can be particularly beneficial for businesses that rely heavily on content marketing or blogging.

Third, Markdown is platform-independent. Files created in Markdown can be read and edited on any platform. This provides a great deal of flexibility and convenience, especially for remote or distributed teams.

Fourth, Markdown supports HTML, which means developers can insert HTML code directly into Markdown files. This allows for more complex formatting if needed, thereby enhancing the versatility of the content.

Lastly, since Markdown is a widely-used language, there's a large community of developers who can provide support and resources. This can be a significant advantage for troubleshooting, learning new techniques, or staying updated with the latest developments.

In conclusion, hiring a Markdown developer can streamline your content creation process, improve productivity, and ensure consistency across different platforms.