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System Design Questions

23 real questions extracted from System Design rounds.

zomatoSDE-2today

Design Zomato

Designing Zomato

netflixSDE-1 / New Gradtoday

design a service for validating and sorting tv series

The candidate was asked to design two distinct systems focusing on architecture and functionality.

netflixSDE-1 / New Gradtoday

design a payment system

The candidate was asked to design two distinct systems focusing on architecture and functionality.

zeptoSDE-2today

Design Zepto/Blinkit

The third round was a system design interview focused on building a quick-commerce application.

walmartSDE-3 / Seniortoday

Design a shopping cart for Walmart.com/apps

The candidate was asked to design a shopping cart system for an e-commerce platform.

zeptoSDE-2yesterday

Design Zepto/Blinkit

The third round was a system design interview focused on building a quick-commerce application.

walmartSDE-3 / Senior2 days ago

Design the shopping cart for Walmart.com or Walmart apps

walmartSDE-3 / Senior2 days ago

Design the shopping cart for Walmart.com or the Walmart app.

linkedinSDE-3 / Senior2 days ago

Handle 'hotspot' creators with millions of followers.

Design a scalable notification fan-out service for LinkedIn, focusing on real-time delivery, handling hotspot creators with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery across regional failures.

SDE-3 / Senior2 days ago

Design LinkedIn's notification fan-out service that delivers post-engagement notifications to millions of subscribers in near real-time.

Design a scalable notification fan-out service for LinkedIn, focusing on handling high-throughput notifications for users with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery despite regional failures.

linkedinSDE-3 / Senior2 days ago

Deduplicate redundant notifications when many actions target the same content.

Design a scalable notification fan-out service for LinkedIn, focusing on real-time delivery, handling hotspot creators with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery across regional failures.

linkedinSDE-3 / Senior2 days ago

Guarantee at-least-once delivery across regional failures.

Design a scalable notification fan-out service for LinkedIn, focusing on real-time delivery, handling hotspot creators with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery across regional failures.

linkedinSDE-3 / Senior2 days ago

Design LinkedIn's notification fan-out service that delivers post-engagement notifications to millions of subscribers in near real-time.

Design a scalable notification fan-out service for LinkedIn, focusing on real-time delivery, handling hotspot creators with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery across regional failures.

SDE-3 / Senior2 days ago

Describe deduplication mechanisms for redundant notifications when multiple actions target the same content.

Design a scalable notification fan-out service for LinkedIn, focusing on handling high-throughput notifications for users with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery despite regional failures.

SDE-3 / Senior2 days ago

Explain how to handle 'hotspot' creators with millions of followers.

Design a scalable notification fan-out service for LinkedIn, focusing on handling high-throughput notifications for users with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery despite regional failures.

SDE-3 / Senior2 days ago

Ensure at-least-once delivery across regional failures.

Design a scalable notification fan-out service for LinkedIn, focusing on handling high-throughput notifications for users with millions of followers, deduplication of redundant notifications, and ensuring at-least-once delivery despite regional failures.

postmanOther2 days ago

Design a system similar to Slack

The candidate was asked to design a messaging platform similar to Slack, covering both high-level architecture and low-level database schema design.

postmanOther2 days ago

Low-level database schema design

The candidate was asked to design a messaging platform similar to Slack, covering both high-level architecture and low-level database schema design.

postmanOther2 days ago

High-level design of the system

The candidate was asked to design a messaging platform similar to Slack, covering both high-level architecture and low-level database schema design.

postmanOther2 days ago

System design for Commenting application

The candidate was asked to design a system for a commenting application.

netflixSDE-1 / New Grad2 days ago

design a service for validating and sorting tv series

The candidate was asked to design a payment system and a service for validating and sorting TV series.

netflixSDE-1 / New Grad2 days ago

design a payment system

The candidate was asked to design a payment system and a service for validating and sorting TV series.

SDE-22 days ago

Design a system to bill cars on a tolled highway.

The candidate was asked to design a toll billing system for a highway.