Revolut Backend Developer Interview Questions and Answers

There are 3 questions. basic to medium level.

Q1. Introduction about yourself
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Q2. Explain about your projects
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Q3. Solve a Coding problem
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Q4. Walk through project code
Ans. 
I will walk through a project code to explain its structure and functionality.
• Start by explaining the overall architecture of the project

• Discuss the main components/modules and their interactions

• Explain any key algorithms or data structures used

• Highlight any design patterns or best practices implemented

• Provide examples of specific code snippets to illustrate your points
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Q1. Consider an e-commerce site's feature that tells you by what time the parcel will reach a pincode. We discussed on architecture, whether the service that responds with the same should have the rules coupl...read more
Ans. 
The rules for parcel delivery time estimation should be decoupled from the service for better maintainability and flexibility.
• Decoupling the rules from the service allows for easier maintenance and updates without affecting the service itself.

• Separating the rules also enables reusability across different services or components.

• Using a separate rules engine or configuration file can provide flexibility to adjust the del...read more
Answered by AI
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Q2. Classic Stock Buy and Sell once for maxium profit
Ans. 
The problem involves finding the maximum profit that can be made by buying and selling a stock once.
• Iterate through the array of stock prices and keep track of the minimum price seen so far.

• Calculate the profit that can be made by selling at the current price minus the minimum price.

• Update the maximum profit if a higher profit is found.

• Return the maximum profit at the end.
Answered by AI
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Q1. Consider an e-commerce site's feature that tells you by what time the parcel will reach a pincode. We discussed on architecture, whether the service that responds with the same should have the rules coupl...read more
Ans. 
The rules for parcel delivery time estimation should be decoupled from the service for better maintainability and flexibility.
• Decoupling the rules from the service allows for easier maintenance and updates without affecting the service itself.

• Separating the rules also enables reusability across different services or components.

• Using a separate rules engine or configuration file can provide flexibility to adjust the del...read more
Answered by AI
Add your answer
Q2. Classic Stock Buy and Sell once for maxium profit
Ans. 
The problem involves finding the maximum profit that can be made by buying and selling a stock once.
• Iterate through the array of stock prices and keep track of the minimum price seen so far.

• Calculate the profit that can be made by selling at the current price minus the minimum price.

• Update the maximum profit if a higher profit is found.

• Return the maximum profit at the end.
Answered by AI
Add your answer