Iliana Sanchez, center, and her fellow Walmart employees stock the shelves at a Miami store on February 19, 2015.
Iliana Sanchez, center, and her fellow Walmart employees stock the shelves at a Miami store on February 19, 2015. Joe Raedle Getty Images
Iliana Sanchez, center, and her fellow Walmart employees stock the shelves at a Miami store on February 19, 2015. Joe Raedle Getty Images

This Puerto Rico executive is leading the tech makeover at South Florida’s Walmarts

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