Cracking Snapchat's iOS SDE Interview: Coding Challenges & System Design Insights

snapchat | Mobile | Interview Experience

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

Interview Process

I had a fantastic experience interviewing at Snapchat for the iOS SDE position. The interview was divided into two parts: coding and system design. Overall, the interview lasted about 1.5 hours, and I felt really good about my performance.

In the coding section, I was given three questions to solve within an hour. The interviewer was supportive and provided hints when I got stuck.

After the coding section, we moved on to system design, where I was asked to design a simplified version of Snapchat Stories. I discussed components like storage, data flow, and scaling the system.

Technical Questions

  1. Optimize Search Queries (Algorithm, Data Structures)
  2. Maximum Profit Stock (Dynamic Programming)
  3. Implement Cache System (Cache, System Design)

Tips & Insights

Be prepared to discuss both coding and system design aspects, and don’t hesitate to ask for hints if you get stuck during the coding portion.