Doordash Machine Learning Engineer Interview Questions
Practice the exact questions companies are asking right now.
Discuss ML infrastructure fundamentals
ML System Design: Infra Stack, Feature Store, Reproducibility, and Monitoring Context: You are designing and operating a machine learning platform tha...
Design a scalable recommendation serving system
Scenario You are designing the online serving infrastructure for a large-scale recommendation system (e.g., a delivery app or e-commerce feed). The in...
Find closest value to a target in a BST
Problem Given the root of a binary search tree (BST) and a floating-point number target, return the value in the BST that is closest to target. If the...
How would you prevent wrong items in deliveries?
Behavioral / Product-Process Scenario You work on a food delivery platform. Customers sometimes receive the wrong items (restaurant packed incorrectly...
How would you target promotions to grow consumers?
ML / Growth Scenario You own a system that sends promotion offers (e.g., "$10 off", "free delivery") to consumers to increase growth. Prompt Design an...