Senior Full Stack Engineer Interview Questions

1,784 senior full stack engineer interview questions shared by candidates

Dependency injection in .Net, DI scopes in great detail, difference between IEnumerable and IQueryable and when / why it is important, standard .Net infrastructure questions How does Angular load modules in, how does the Angular Router work under the hood
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Senior Full Stack Developer

Interviewed at Sedona Digital

5
Jul 10, 2025

Dependency injection in .Net, DI scopes in great detail, difference between IEnumerable and IQueryable and when / why it is important, standard .Net infrastructure questions How does Angular load modules in, how does the Angular Router work under the hood

Guys most of the question above, here I'm gonna share the question I failed, as I promised the interviewer that I'm gonna solve it, it just needs 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 question above, here I'm gonna share the question I failed, as I promised the interviewer that I'm gonna solve it, it just needs 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.

All the interviewers don't know how to interview. They also don't seem technically strong. That's understandable as most technically strong people are in Faang. Most interviewers asked questions and never bothered to take note or share a document as it was remote. I opened Google doc and shared my screen. Also, I had to keep asking if they are ok with you what I am doing. Bad communication! Onsite 1. Design a local library. Onsite 2. Asked if 1st interviewer asked library, I said yes.. so asked some banking routing no and interview was done in 20 mins.. she said she had nothing else! Onsite 3. Cultural interview from new soft engineer who was customer support earlier. When was the last time you asked for help? And some other random stuff Onsite 4. A version of LCS I solved in n2 and they said it was brute Force! Design a restaurant and menu design question Onsite 5. Design Twitter like system. During the process he said he doesn't know how to implement it, then how is he going to assess me? I had to follow up after interview.
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Senior Full Stack Software Engineer

Interviewed at EarnIn

3.9
Feb 27, 2019

All the interviewers don't know how to interview. They also don't seem technically strong. That's understandable as most technically strong people are in Faang. Most interviewers asked questions and never bothered to take note or share a document as it was remote. I opened Google doc and shared my screen. Also, I had to keep asking if they are ok with you what I am doing. Bad communication! Onsite 1. Design a local library. Onsite 2. Asked if 1st interviewer asked library, I said yes.. so asked some banking routing no and interview was done in 20 mins.. she said she had nothing else! Onsite 3. Cultural interview from new soft engineer who was customer support earlier. When was the last time you asked for help? And some other random stuff Onsite 4. A version of LCS I solved in n2 and they said it was brute Force! Design a restaurant and menu design question Onsite 5. Design Twitter like system. During the process he said he doesn't know how to implement it, then how is he going to assess me? I had to follow up after interview.

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