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Behavioral
2 years ago
How do you qualify as a good candidate?
Software EngineerData Science ManagerEngineering ManagerUX Designer

DoorDash

JP Morgan

ServiceNow

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2 years ago
System Design
2 years ago
Create a system to manage distributed tracing.
Software Engineer

DoorDash

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2 years ago
Behavioral
2 years ago
Let me know something about the project you are most proud of.
Software EngineerFull Stack Software EngineerTechnical Program ManagerProduct Manager

DoorDash

Electronic Arts Logo

Electronic Arts

Dropbox Logo

Dropbox

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2 years ago
Coding
2 years ago

Two Sum

You're presented with an array of integers and a specific target value. Your task is to identify and return the indices of two numbers from the array that add up to the target. You can assume there's exactly one solution, and you can't use the same element twice. The indices can be returned in any order.

Input: nums = [14,8,22,6], target = 20

Output: [1,3]

Explanation: The integers at indices 1 and 3 (8 and 6) sum up to 20, so we return [1, 3].

Software Engineer

DoorDash

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2 years ago
Behavioral
3 years ago
Why are you looking for a job at the moment?
Software EngineerData Science ManagerEngineering ManagerUX Designer

DoorDash

Samsung Logo

Samsung

Bolt Logo

Bolt

Get answer reviewed by AI
3 years ago
System Design
3 years ago
Design a system for real-time processing of network traffic for intrusion detection.
Software Engineer

DoorDash

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3 years ago
System Design
3 years ago
Design a scalable key-value store across multiple nodes.
Software Engineer

DoorDash

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3 years ago
System Design
3 years ago
Design a system for processing large datasets (Big Data).
Software Engineer

DoorDash

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3 years ago
System Design
3 years ago
Design a system for real-time stock market data.
Software Engineer

DoorDash

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3 years ago
Coding
3 years ago

Best Time to Buy and Sell Stock

You have access to an array where each element represents the price of a specific stock on a given day. Your objective is to maximize profit by selecting one day to purchase the stock and a different, future day to sell it. Determine and return the maximum profit achievable. If it's impossible to generate a profit, return 0.

Input: prices = [9,3,8,2,7,5]

Output: 5

Explanation: Purchase on day 2 (price = 3) and sell on day 5 (price = 7) for a profit of 7 - 3 = 4.

Software Engineer

DoorDash

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3 years ago

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*All interview questions are submitted by recent DoorDash Software Engineer candidates, labelled and categorized by Prepfully, and then published after being verified by Software Engineers at DoorDash.

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