Wordpress developer roadmap?
Let me know the roadmap for wordpress.
What about Googling?
There isn't something like roadmap to learn WordPress because it is so easy that one can learn it in a week. However, a basic knowledge of web development is appreciated and can be helpful while learning. Either way, consider checking out this guide to understand how websites built by using WordPress: https://thesimplewordpress.com/build-wordpress-website/