The grocery chain’s store in Philadelphia becomes the first to join a union, where workers hope to expand organizing to other outlets and across the Amazon empire.

The union win, at a Philadelphia store where workers are seeking higher wages, comes as Amazon is also fighting organizing efforts among some warehouse employees and delivery drivers.

In his expanded role, Buechel will oversee Amazon's roster of grocers, including Whole Foods, Amazon Fresh, Amazon Go and other grocery partnerships, as the division looks for ways to boost revenue. He will keep his role as CEO of Austin-based Whole Foods.