Developer Interview Questions

269,158 developer interview questions shared by candidates

The question was not difficult, what is difficult is to make it better than your competitors. I had to write an algorithm, that given two arrays A and B, both ordered, the had to be merged into A, in order. It was not allowed to used auxiliary arrays.
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Android Developer

Interviewed at Meta

3.5
Oct 30, 2014

The question was not difficult, what is difficult is to make it better than your competitors. I had to write an algorithm, that given two arrays A and B, both ordered, the had to be merged into A, in order. It was not allowed to used auxiliary arrays.

For my Pirate (systems design & architecture), the interviewer drew up a vague picture of a cat picture inside a cell with a FB profile picture & name at the top of the cell and a "likes" and "comments" counts & buttons at the bottom of the cell. I was asked to design what the interface for a ranked feed for an Instagram-like clone called "Cat-a-gram" would look like.
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IOS Developer

Interviewed at Meta

3.5
Oct 19, 2017

For my Pirate (systems design & architecture), the interviewer drew up a vague picture of a cat picture inside a cell with a FB profile picture & name at the top of the cell and a "likes" and "comments" counts & buttons at the bottom of the cell. I was asked to design what the interface for a ranked feed for an Instagram-like clone called "Cat-a-gram" would look like.

by phone: what is a difference between Object and Array, call and apply, what is DOM structure, what is time complexity of traversing through the DOM, other very basic questions. online interview: first question is about data structure, given two arrays, one of them is a map to another, you need to traverse and exclude from array objects according to the map, in general they expect from you to build an map object from key+value but you have to use ES6 MAP where key can be stored as object and not as string or ASCII coded string. The second question was about setTimeout browser api, you will be asked to clean all timeouts, the answer is to override setTimeout and store all of them in stuck and clean them if needed.
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Front End Developer

Interviewed at Meta

3.5
Nov 4, 2018

by phone: what is a difference between Object and Array, call and apply, what is DOM structure, what is time complexity of traversing through the DOM, other very basic questions. online interview: first question is about data structure, given two arrays, one of them is a map to another, you need to traverse and exclude from array objects according to the map, in general they expect from you to build an map object from key+value but you have to use ES6 MAP where key can be stored as object and not as string or ASCII coded string. The second question was about setTimeout browser api, you will be asked to clean all timeouts, the answer is to override setTimeout and store all of them in stuck and clean them if needed.

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