On paper, it's the same in the US. In practice, no one cares, and you see the title "Front end engineer" for "guy who tweaks the CSS until the site looks right" and "UX engineer" for "guy who makes pictures of what the product should look like in Photoshop".

I do cringe, though, at the extreme overuse of the term in software; I have two parents who are legit PEs in the US and drilled the distinction in with me.

At the very least, it should be reserved for someone with a broad theoretical and practical background who solves more complicated problems ... but you know how title inflation goes.