Walmart Inc. is hiring an executive from Instacart Inc. to accelerate its use of artificial intelligence as the world’s largest retailers looks to bolster its competitive edge.

CEO Doug McMillon said there's a window of opportunity right now for Walmart to apply AI and further incorporate technology.

Walmart has introduced a string of new AI tools, including an AI-enabled bot that allows store workers to practice interviews for new roles virtually and a tool that automatically schedules store-worker shifts.