I can do that. I have worked on scaling in Meta, Tik Tok and Google on several stores simultaneously, with different testing, scaling, retargeting and budget control of each store.
In the case of Meta and Tik Tok, I specialise in creative testing, winning angles and clean structure of the campaign. In the case of Google, I deal with high intent traffic, Shopping/Search setup, remarketing, and ROAS control.
This will allow me to control the entire flow of ads to ensure that every store grows separately without confusing information, wasting money, and slowing down the results.