System Design Interview Questions

Review this list of 452 System Design interview questions and answers verified by hiring managers and candidates.

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Design a sentence autocomplete suggestion system. Example: Input - 'I hope you feel', Output - 'better soon'. This system is used in applications like Gmail, Google Docs, and Hangouts.
4 years ago1 answer
How would you improve Yelp's search functionality?
5 years ago1 answer
Design an auction feature on Instagram
a year ago
Design an alarm system for streaming metrics.
8 months ago
Design a currency exchange system.
4 years ago1 answer
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You have a distributed computing environment with limited resources and multiple projects. How would you prioritize and allocate those resources?
a year ago
How would you price a self-driving car?
20 days ago2 answers
Design a smart electric meter software system for an apartment building featuring separate dashboards for tenants and the owner, showing electricity usage by specific units and floors.
6 years ago
Design a live event streaming system that captures user polls and allows user interaction
a year ago
Describe what happens when you visit https://google.com in your web browser.
3 years ago3 answers
How would you design a LinkedIn-like system that instantly shows whether a profile is a first-, second-, or third-level connection for a user at very large scale?
5 months ago
Design a web scraping engine.
2 years ago
Design YouTube advertising.
3 years ago
Design an ML monitoring system for a fantasy sports app, focusing on drift, performance, outliers, and quality.
3 years ago1 answer
Design a taxi recommendation system for airports.
a year ago1 answer
Design a custom policy extension for an LRU Cache.
2 years ago2 answers
As a product manager for Meta, design a product for volunteers.
7 months ago2 answers
In a large application, which code branches are more important to be tested and how do you decide?
a year ago1 answer
Design the architecture to send chargeback transactions to Visa.
2 years ago2 answers
Design a plan to migrate an existing authentication system to a new one.
a year ago1 answer

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System Design Interview Questions

Design a sentence autocomplete suggestion system. Example: Input - 'I hope you feel', Output - 'better soon'. This system is used in applications like Gmail, Google Docs, and Hangouts.

How would you improve Yelp's search functionality?

Design an auction feature on Instagram

Design an alarm system for streaming metrics.

Design a currency exchange system.

You have a distributed computing environment with limited resources and multiple projects. How would you prioritize and allocate those resources?

How would you price a self-driving car?

Design a smart electric meter software system for an apartment building featuring separate dashboards for tenants and the owner, showing electricity usage by specific units and floors.

Design a live event streaming system that captures user polls and allows user interaction

Describe what happens when you visit https://google.com in your web browser.

How would you design a LinkedIn-like system that instantly shows whether a profile is a first-, second-, or third-level connection for a user at very large scale?

Design a web scraping engine.

Design YouTube advertising.

Design an ML monitoring system for a fantasy sports app, focusing on drift, performance, outliers, and quality.

Design a taxi recommendation system for airports.

Design a custom policy extension for an LRU Cache.

As a product manager for Meta, design a product for volunteers.

In a large application, which code branches are more important to be tested and how do you decide?

Design the architecture to send chargeback transactions to Visa.

Design a plan to migrate an existing authentication system to a new one.

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