Cracking the Snapchat Mobile Interview: Tackling Two Sum & Ad System Design

snapchat | Mobile | Interview Experience

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

Interview Process

The interview consisted of two parts: coding and system design. In the coding interview, I was asked to solve a problem involving data structures and algorithms, specifically focusing on arrays and hash maps. The interviewer was friendly and provided guidance when I got stuck.

For the system design portion, I was asked to design a simplified version of an ad serving system, considering aspects such as scalability and latency. I discussed my approach to handling failover scenarios and data persistence. Overall, it was an engaging experience and the interviewers were understanding. I felt comfortable asking questions and clarifying requirements throughout the process.

Technical Questions

  1. Two Sum (Array, Hash Table)
  2. Design a Rate Limiter (System Design)

Tips & Insights

Be prepared to discuss both coding and system design concepts, and don’t hesitate to ask for clarification during the interview.