Membership Site Updates and customisation

I need a freelancer that knows Wordpress, Memberium and Learndash. I already have a membership site up and running with numerous courses, membership levels and resources. It is built with Thrive Themes and Thrive Architect. I need to update the site to the new Thrive Theme Builder, and I would like to customise the login page. First login redirect, as well as single course pages. I am not looking for a developer, rather someone who can work within Thrive themes, memberium and learndash to design what I am looking for and update the site. This would be ongoing work.