Questions that have appeared at pinterest for a engineering (Case Study) interview.

1. System Design

Question: How would you design a feature for Pinterest that recommends pins to users based on their browsing history?

Question: How would you design a system that could efficiently handle the upload and retrieval of millions of images daily?

Question: How would you design a system to handle and mitigate the impact of a DDoS attack?

2. Data Structures and Algorithms

Question: How would you design an algorithm to find the most popular pins in a given category?

Question: How would you implement a feature to allow users to easily navigate through their pin history?

Question: How would you design an efficient data structure to store and retrieve user details?

3. Scalability and Performance

Question: How would you ensure the scalability of Pinterest's backend systems as the user base grows?

Question: How would you improve the performance of a feature that is slowing down the overall system?

Question: How would you design a caching strategy for Pinterest given that it is a heavily read-oriented platform?

4. Architecture and System Design

Question: How would you design the architecture for a new feature like a live video pin?

Question: How would you design a robust, scalable messaging system for Pinterest?

Question: How would you design a system to detect and prevent spam or inappropriate content on Pinterest?