System Design · DoorDash · Medium
Homepage Restaurant Feed Ranking System When someone opens a delivery app like Uber Eats or DoorDash, the first screen is a ranked list of restaurants nearby. This feed is the main entrance to the product. It influences the meal a customer chooses, whether a newly opened neighborhood Thai spot gets any exposure, and whether the marketplace maintains enough healthy restaurant partners. We will design the ML system powering that feed. The surface addressed here is the homepage…