Cracking Snapchat's Technical Coding Round: Mastering Max Subarray & LRU Cache

Snapchat | Software Engineer | Interview Experience

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

Interview Process

I had my onsite interview with Snapchat for the position of iOS Software Engineer. The interview was divided into multiple parts. The first section was a technical coding round, where I was asked to solve two problems on a whiteboard.

After the coding rounds, I had a systems design interview where I was asked to design a messaging application. I discussed the architecture, databases, and scaling considerations.

Finally, I had a behavioral interview where the interviewer asked about my previous experiences and how I work in a team. Overall, I felt the interview went quite well!

Technical Questions

  1. Maximum Subarray Sum (Dynamic Programming)
  2. LRU Cache (Design)

Tips & Insights

Be prepared to explain your thought process clearly during coding interviews and to discuss architectural decisions in design interviews.