Senior Full Stack Developer Interview Questions

1,159 senior full stack developer interview questions shared by candidates

There was a question about forming a palindrome from a string of up to 100 characters by removing characters until you have the largest possible palindrome. There was a second part to this question where the indices of the characters that were removed from the string should also form a palindrome, something to that effect.
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Senior Full Stack Developer

Interviewed at BET Software

2.5
May 20, 2023

There was a question about forming a palindrome from a string of up to 100 characters by removing characters until you have the largest possible palindrome. There was a second part to this question where the indices of the characters that were removed from the string should also form a palindrome, something to that effect.

Implement a function called 'memoize()' that takes a function as an argument and returns a memoized version of that function. A memoized function should cache the results of previous calls based on the arguments passed. If the function is called with the same arguments again, it should return the cached result instead of re-executing the function.
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Senior Full Stack Developer

Interviewed at Wix

4.1
Jan 22, 2025

Implement a function called 'memoize()' that takes a function as an argument and returns a memoized version of that function. A memoized function should cache the results of previous calls based on the arguments passed. If the function is called with the same arguments again, it should return the cached result instead of re-executing the function.

Coding challenge, code both front-end and back-end: - Simple dashboard with widgets with different background-color & title. - Users should be able to add multiple widgets with a CRUD modal. - The browser shouldn’t refresh to update the layout when adding/editing/removing widgets.
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Senior Full Stack Developer

Interviewed at Holded

4.5
Aug 29, 2019

Coding challenge, code both front-end and back-end: - Simple dashboard with widgets with different background-color & title. - Users should be able to add multiple widgets with a CRUD modal. - The browser shouldn’t refresh to update the layout when adding/editing/removing widgets.

Build Set class with following methods: get(key), set(key, val), clear. Each of the methods time and space complexity has to be O(1). Also Clear method is not allowed to erase the internal memory object of the Class by reassigning its value to an empty one,
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Senior Full Stack Developer

Interviewed at Sayata

4.5
Jul 2, 2023

Build Set class with following methods: get(key), set(key, val), clear. Each of the methods time and space complexity has to be O(1). Also Clear method is not allowed to erase the internal memory object of the Class by reassigning its value to an empty one,

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