DoorDash
Last updated
Traditional coding rounds are being replaced by a 60-minute AI-assisted working session on your own machine, with your own editor and AI tools.
DoorDash described the change on its careers blog in March 2026. Candidates work in their own IDE with the AI coding tools they normally use; the post says free tiers of mainstream tools are enough. The session is meant to show navigating unfamiliar code, making pragmatic trade-offs, handling ambiguity, validating AI output and explaining your reasoning. Prep sites report that the rollout differs between loops, so confirm the format with your recruiter.
Sources last checked 2026-10-27.
Working in a codebase you have not seen, with an AI assistant open, for about an hour, and explaining your trade-offs as you go. Placed's codebase rounds run in that shape.
- 01ledger — Longest Balanced RunmediumThree-phase codebase roundAn unfamiliar multi-file project: fix a bug, add a feature, then make it hold up, with the assistant open.
- 02uptime — Read, Fix, Speed UpmediumCode comprehensionReading code before changing it, and checking the assistant's summary against the code.
- 03lockfile — Wrong UpgradesmediumDebug only, assistant closedFinding a defect with the assistant closed, so you are not relying on it to understand the code.
- 04PR #644 — CSV export, written by an agentmediumCode reviewValidating generated code, which the session is reported to look for.
These are Placed's own practice rounds, chosen for the kind of round described above. They are not DoorDash's questions and Placed is not affiliated with DoorDash. Formats change and differ by team: confirm yours with your recruiter.
Read the guide to DoorDash's interview or the full guide to AI-enabled coding interviews.