What does it mean to recruit JD store managers nationwide?

Recruiting positions responsible for the overall operation and daily management of JD.com across China. The whole country refers to the whole of China, and zhao means recruitment. The JD store manager is a position responsible for the overall operation and daily management of the JD store. "National recruitment of JD.com store managers" means recruiting positions across China that are responsible for the overall operation and daily management of JD.com stores.