Questions that have appeared at Pinterest for an Engineering (Case Study) interview.

1. System Design

Question: How would you design a scalable architecture for Pinterest considering its millions of users and billions of pins?

Question: How would you design an efficient recommendation system for Pinterest users?

Question: How would you go about designing a system to handle real-time updates and notifications?

2. Data Management

Question: How would you design an efficient method for storing and retrieving data for Pinterest?

Question: Pinterest is a highly visual platform. Can you suggest some efficient ways to manage and store images?

Question: How would you ensure that the data stored in Pinterest's databases is secure and reliable?

3. Performance Optimization

Question: How would you optimize the performance of Pinterest's search functionality?

Question: Pinterest's homepage is often filled with numerous pins. How would you ensure the homepage loads quickly and efficiently?

Question: How could you improve the efficiency of Pinterest's ad-serving system?

4. Scalability

Question: How would you handle the scalability of Pinterest, especially during peak usage times?

Question: As Pinterest expands its features and user base, how would you ensure the platform remains scalable?

Question: Pinterest has a global user base. How would you ensure that the system performs well and provides a good user experience across different regions?

5. Fault Tolerance and Recovery

Question: How would you design a fault-tolerant system for Pinterest, considering its constant user activity?

Question: In case of system failure, what measures would you take to ensure quick recovery with minimal data loss?

Question: How would you handle a situation where the Pinterest platform is under a Distributed Denial of Service (DDoS) attack?