← Interview experiences
Rejected

Senior Software Engineer at DoorDash

Difficulty
Process took
2-3 Weeks
Rounds
3
Format
Remote
Applied via
Company Website

How it went

Always think about follow-up scenarios, different constraints, edge cases, and alternative approaches. I think I failed to do this, which is why I was unable to clear the interview.

What they would tell you

Always think about follow-up scenarios, different constraints, edge cases, and alternative approaches. I think I failed to do this, which is why I was unable to clear the interview.

How to prepare

I got the rejection email.

Round by round

  1. 1

    Screening Round30 min

    Simple coding problem related to bit manipulation were asked

  2. 2

    Technical Round 160 min

    The first question was Binary Tree Maximum Path Sum, I immediately thought about recursion, but under pressure, I realized I might mess it up. So, I decided to go iterative. While coding, I focused a lot on communicating each step, almost narrating what I was thinking. The interviewer nodded along, and that gave me a small boost, it is funny how even small affirmations can calm your nerves in these moments.

  3. 3

    Technical Round 260 min

    Round 2 was trickier Given a grid of 0s (water) and 1s (land), find the size of the largest island you can form by changing at most one 0 to a 1. I started with BFS, which worked perfectly. But then came the curveball, the interviewer asked me to solve it using DFS. I froze for a second. My mind knew the logic, but implementing it under a time crunch was… messy. I got partway through, but I couldn’t fully finish. I remember feeling frustrated, I had the solution in my head, why couldn’t I get it out cleanly?

What came up

MediumRemote5+ years

A candidate-reported account, lightly edited. Interview processes change by team and date.

Sources

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