Why not try it out by start messing around with it and get a feel for it? But to answer your question: no, you don't. You already have more than enough prerequisites for an easier transition.

https://pentesterlab.com

https://portswigger.net/web-security

Have fun!

Edit: I'm completely self-taught and I've been working in the field for a few years. No dev or even IT background prior to getting into network pentesting and web app pentesting.