Senior Full Stack Engineer Interview Questions

829 senior full stack engineer interview questions shared by candidates

Guys most of the questions are above, here I'm gonna share the question I failed, as I promised the interviewer that I'm gonna solve it, I just needed more time. The most difficult question is the following: we have this array: $input = [ 'item/id' => 'my_id', 'item/title' => 'my_title', 'item/group1/val1' => 'my_val1', 'item/group1/val2' => 'my_val2', 'summary' => 'xyz', 'item/group1/val3' => 'my_val3', ]; We need to convert it to : Array ( [item] => Array ( [id] => my_id [title] => my_title [group1] => Array ( [val1] => my_val1 [val2] => my_val2 [val3] => my_val3 ) ) [summary] => xyz ) This is using PHP.
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Senior Full Stack Software Engineer

Interviewed at Feedonomics

4.4
Mar 26, 2021

Guys most of the questions are above, here I'm gonna share the question I failed, as I promised the interviewer that I'm gonna solve it, I just needed more time. The most difficult question is the following: we have this array: $input = [ 'item/id' => 'my_id', 'item/title' => 'my_title', 'item/group1/val1' => 'my_val1', 'item/group1/val2' => 'my_val2', 'summary' => 'xyz', 'item/group1/val3' => 'my_val3', ]; We need to convert it to : Array ( [item] => Array ( [id] => my_id [title] => my_title [group1] => Array ( [val1] => my_val1 [val2] => my_val2 [val3] => my_val3 ) ) [summary] => xyz ) This is using PHP.

Given a text, extract the frequency of each word, and produce an output sorted by applying the following conditions: a. descending order of frequency b. ascending alphabetical order, in case two or more words have the same frequency (clash) Ex. class java set map java object java class object list Output java 3 class 2 object 2 list 1 map 1 set
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Senior Staff Full Stack Engineer

Interviewed at AppDirect

3.6
Jan 14, 2021

Given a text, extract the frequency of each word, and produce an output sorted by applying the following conditions: a. descending order of frequency b. ascending alphabetical order, in case two or more words have the same frequency (clash) Ex. class java set map java object java class object list Output java 3 class 2 object 2 list 1 map 1 set

Ques : Reactjs scenario based question related to how to improve components load time. Ques 2 : Api scenario based question like if we are getting multiple api request (more than its capacity). Other profile based ques related to .net core.
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Senior Engineer - Full Stack

Interviewed at Nielsen

3
Oct 6, 2024

Ques : Reactjs scenario based question related to how to improve components load time. Ques 2 : Api scenario based question like if we are getting multiple api request (more than its capacity). Other profile based ques related to .net core.

CSS Selectors. Stuff that can be easily Googled or ChatGPT'd if necessary. They have their own design system (no UI library), so they develop components themselves. Be ready to hear questions like "how do you access a deeply-nested with CSS selectors".
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Senior Full Stack Engineer

Interviewed at ZONE3000

4.8
Jun 3, 2025

CSS Selectors. Stuff that can be easily Googled or ChatGPT'd if necessary. They have their own design system (no UI library), so they develop components themselves. Be ready to hear questions like "how do you access a deeply-nested with CSS selectors".

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