Cracking the Snapchat iOS SDE Interview: Insights on Data Design Challenges

Software Engineering
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DoorDash | Software Engineer | Interview Experience

Interview Date: Not specified
Result: Not specified
Difficulty: Not specified

Interview Process

The interview process consisted of a phone screen followed by a technical interview. The phone screen lasted about 45 minutes and focused on both behavioral and technical questions. The interviewer was friendly and provided a comfortable atmosphere, which helped ease the tension.

Technical Questions

  1. Data Log Transmission and Storage Design (Design, Storage)
  2. Rate Limiting and Log Collection Design (Design, Rate Limiting)
  3. Fibonacci Tree Path Calculation Using Preorder Numbering (Tree, Fibonacci)
  4. Tree Distance Sum Problem (Tree, DFS)

Tips & Insights

  • Familiarize yourself with system design principles, especially around data storage and rate limiting.
  • Practice coding problems related to trees and recursion, as they are commonly asked.
  • Be prepared to discuss your previous projects and how they relate to the position you’re applying for.