Python programmer for Blender Addon modifications

I am making a modified version of AutoRigPro for Blender, the main changes needed are some UI panel changes. It's a large codebase (a lot of lines of code) - but the tasks are primarily UI changes -

I need help with two jobs. 1. The UI panel changes (this would be easiest and quickest to solve I think)

2. second separate gig, refactoring the AutoRigPro codebase into smaller files.

Note: AI assisted CODING will NOT work with this project. (It's too large) a single file is over 50,000 lines of code. I have tried. It overloads the AI

So I need a true python programmer.

We can discuss a payment for this job, it's not a full time monthly salary.