DoorDash | Software Engineer | Interview Experience
Interview Date: Not specified
Result: Fail
Difficulty: Average
Interview Process
The interview process began with HR reaching out directly via LinkedIn. There was no online assessment; the first round was a coding interview focused on the classic Dasher pay system. However, there was not much follow-up discussion on the code.
Two weeks later, the onsite interview took place in the afternoon. The interview included a deep dive and system design discussion, specifically around a classic three-day donation scenario. The candidate felt a bit nervous, which may have affected their performance, especially regarding the asynchronous and idempotency topics.
The debugging round involved a Round Robin format. Nervousness caused the candidate to spend more time than intended, but they managed to complete the problem related to Consistent Hashing.
The behavioral question round consisted of standard questions. Due to the candidate’s limited years of experience, the manager concluded the interview about 15 minutes early, and the session started a few minutes late.
The candidate received notification of their unsuccessful application two business days later.
Technical Questions
- Rectangle Overlap (System Design, Microservices, High Availability, Scalability)
- Consistent Hashing (Data Structures, Consistent Hashing, Load Balancing)
Tips & Insights
- Prepare thoroughly for system design and coding interviews, especially on topics like asynchronous processing and idempotency.
- Manage nerves during debugging rounds to optimize performance.
- Understand that limited years of experience may affect the interview dynamics, especially in behavioral rounds.