You don't need to be an expert in Alexa or AWS in general. You'll learn the basics but that's just the beginning!
Dig into the the Skill Manifest, Interaction Model Schema, and Account Linking Schema to level-up your understanding!
The Developer Console is nice for getting your feet wet, but you need to know more than that to make your skill production ready. You'll create a pipeline to manage your source files and automatically deploy your skill!