I've hired from bootcamps multiple times, it's a great source of junior developers. It is however a show of the absolute minimum amount of skill a person could possibly have before you take them on as a developer.

If this person says that they've been coding for years, then that puts them at a way higher level than a recent bootcamp grad.

Instead of doing a bootcamp, spend a week or two building simple apps in whatever category you want to work in. If you want to be a web dev, a little node.js backend with a react frontend perhaps, or similar with Django or Rails.

Plonk it on your github, make sure you put on your resume that you're a junior that's been coding for years but never put anything in production, and you'll definitely be ahead of the bootcamp grads in my book.