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Senior Backend Engineer Interview Questions

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2,798 senior backend engineer interview questions shared by candidates

1. The screening interview: a JS code with recursion to calculate the mean of an array. They asked about the code output and its BigO notation. 2. Virtual test: three code challenges in JS. a) Create 3 endpoints using Node.js, Express.js, and Sequelize.js. b) Use Node.js to read a file, check if it exists, and read it asynchronously. c) An algorithm using JS to find if a number was in a Singly Linked List. If the number existed, remove it and rearrange the Linked List. 3. Technical interview: JS questions, Node.js questions, SQL questions, and live coding. In the live coding, the questions were an algorithm to check if a number existed in an unsorted binary tree.
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Senior Backend Developer

Interviewed at Howdy

4.6★
Jan 30, 2023

1. The screening interview: a JS code with recursion to calculate the mean of an array. They asked about the code output and its BigO notation. 2. Virtual test: three code challenges in JS. a) Create 3 endpoints using Node.js, Express.js, and Sequelize.js. b) Use Node.js to read a file, check if it exists, and read it asynchronously. c) An algorithm using JS to find if a number was in a Singly Linked List. If the number existed, remove it and rearrange the Linked List. 3. Technical interview: JS questions, Node.js questions, SQL questions, and live coding. In the live coding, the questions were an algorithm to check if a number existed in an unsorted binary tree.

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