DoorDash

Machine Learning Engineer Interview Experience - United States

May 13, 2025

Negative ExperienceNo Offer

Process

HR contacted me regarding the interview. The interview was about one hour long and conducted with an engineer.

There were two medium/hard coding problems.

The system message stated that the process time could be at most three weeks before hearing back, but I received no notifications. The HR representative or any interviewer never responded to any emails or inquiries after the interview.

Questions

Algorithm questions packaged in a delivery scenario.

Interview Statistics

The following metrics were computed from 6 interview experiences for the DoorDash Machine Learning Engineer role in United States.

Success Rate

Pass Rate

DoorDash's interview process for their Machine Learning Engineer roles in the United States is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive33%

Neutral33%

Negative33%

Candidates reported having mixed feelings for DoorDash's Machine Learning Engineer interview process in United States.

DoorDash Interview Questions

Single-Threaded CPU

Medium

Simulate a single-threaded CPU processing tasks with varying arrival times and processing durations. Determine the order in which the CPU processes the tasks to minimize idle time, and return the processing order.

Greedy Algorithms

Walls and Gates

Medium

Imagine a grid representing rooms, some empty, some with walls, and some with gates. Fill each empty room with the distance to its nearest gate.

Graphs

Longest Increasing Path in a Matrix

Hard

Find the longest path in a matrix where each step increases in value. You can only move up, down, left, or right.

GraphsDynamic Programming