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Senior Backend Engineer Interview Questions

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2,796 senior backend engineer interview questions shared by candidates

In the interview, they inquired about dynamic programming solutions for the coin change problem, discussed my role and functions as a language model, and asked about my prior projects and final-year project. They also sought details about the company I work for.
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Senior Backend Engineer

Interviewed at Random

3.9★
Jun 27, 2024

In the interview, they inquired about dynamic programming solutions for the coin change problem, discussed my role and functions as a language model, and asked about my prior projects and final-year project. They also sought details about the company I work for.

There's no feedback after the interview. I stopped at 2nd interview. Ask about background jobs Compare HashTable/HashMap Java, Compare complexity of Insert at 2nd index in LinkedList/ArrayList, Leetcode medium - Print Binary Tree Traversal by level, Write an SQL statement to deduce balance of an account having 2 columns balance and account_id given account_id and amount
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Senior Backend Engineer

Interviewed at PayPay

3.4★
Sep 6, 2024

There's no feedback after the interview. I stopped at 2nd interview. Ask about background jobs Compare HashTable/HashMap Java, Compare complexity of Insert at 2nd index in LinkedList/ArrayList, Leetcode medium - Print Binary Tree Traversal by level, Write an SQL statement to deduce balance of an account having 2 columns balance and account_id given account_id and amount

Round 1. Node.js questions on event loop, callbacks, closure, promises, and some other http related questions. Then medium leetcode question - Find longest consecutive string without repeating character. Optimised answer is expected. Round 2 Design twitter. Round 3. Design rate limiter. Result - No contact from them. Interview went really well still haven’t heard from them. All the interviewers were very good, expect the one who took bar raiser. She is arrogant and not open for discussion, for here every problem can be solved by scaling more machines, rather than tackling problem.
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Senior Backend Engineer (Node Js)

Interviewed at Viacom 18

3.7★
Nov 23, 2023

Round 1. Node.js questions on event loop, callbacks, closure, promises, and some other http related questions. Then medium leetcode question - Find longest consecutive string without repeating character. Optimised answer is expected. Round 2 Design twitter. Round 3. Design rate limiter. Result - No contact from them. Interview went really well still haven’t heard from them. All the interviewers were very good, expect the one who took bar raiser. She is arrogant and not open for discussion, for here every problem can be solved by scaling more machines, rather than tackling problem.

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