DoorDash Coding Interview Questions (2026)
Most-reported questions and how to practice them
77 coding questions reported by candidates for DoorDash, sorted by how often they were reported. Source: community-sourced LeetCode company lists.
What the DoorDash question data shows
Of the 77 questions reported for DoorDash, 57% are medium, 34% are hard and 9% are easy. The most reported are Walls and Gates, Binary Tree Maximum Path Sum, Longest Increasing Path in a Matrix, Search Suggestions System, Design File System.
This list comes from community-sourced LeetCode company lists. It covers coding questions only. It does not tell us how many rounds DoorDash runs, what each round covers, or what it pays, and those change by role, level and team, so we do not list them. Ask your recruiter what each round covers, and check the company's careers page.
Prepare for the rest of the loop with the coding interview patterns guide, the system design framework, and the STAR method guide. Written by Kieron.
Practice what you read with a free AI mock interview, see how the tools compare in our AI interview copilot comparison, or check Aissence pricing.
DoorDash Interview Questions
77 LeetCode questions — sorted by frequency. Question frequency is community-sourced from public interview reports and may not reflect the current process; verify details with the employer.
Last reviewed: September 5, 2026 · Source: LeetCode company-wise interview questions (community reports) · Reviewed by the Aissence Editorial Team.
Walls and Gates
Binary Tree Maximum Path Sum
Longest Increasing Path in a Matrix
Search Suggestions System
Design File System
Shortest Distance from All Buildings
Maximum Profit in Job Scheduling
Koko Eating Bananas
Single-Threaded CPU
Count Nodes With the Highest Score
Count All Valid Pickup and Delivery Options
Minimum Number of Steps to Make Two Strings Anagram
Next Greater Element III
Design In-Memory File System
Find K Closest Elements
Basic Calculator III
Most Profit Assigning Work
Making A Large Island
Buddy Strings
Check if One String Swap Can Make Strings Equal
Tips for Success at DoorDash
Start with the 30 most reported DoorDash questions, then work down the list.
Mediums are the bulk of the list (57%), so spend most of your time there.
Time yourself: 20 to 30 minutes per medium, then explain your solution out loud as if to an interviewer.
After each problem write down the pattern and the signal that revealed it. Patterns transfer to problems you have not seen.
Pair coding practice with a system design framework and prepared behavioral stories; most loops include more than coding.
How to Practice for DoorDash Interviews
Practice answering out loud with an AI interviewer built from your resume and the job description, and get a score and specific fixes for each answer. We are not affiliated with DoorDash, and the mock interview is general practice rather than a simulation of DoorDash's own format.
- ✓ Free mock interview built from your resume and the job description
- ✓ Desktop Interview Copilot for live interviews, where the rules allow it
- ✓ Behavioral practice with feedback on structure and specifics
- ✓ System design practice with follow-up questions
Frequently Asked Questions
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What is the difficulty mix for DoorDash?
What is the DoorDash interview process?
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