How do you structure your Product Team?

Hi,

My question is barely scrum related but I really would like to have an insight from someone with scrum experience.

I'm working on a startup, we are about 50 folks in total and about 15 of us are working on the product team working our products. Inside the product team we have a set of roles and also some divisions/hierarchy, something like this:

1. Product Team 2) Development Team 2.1) Developers 2.2) QAs 3) Product Team 3.1) POs 3.2) UX/UD 3.3) Data Science