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Senior Frontend Engineer Interview Questions

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2,920 senior frontend engineer interview questions shared by candidates

7-question multiple-select test related to FE skills (React, Next.js). The weird part was that all the questions were multi-select, so basically, multiple answers were correct. However, as my interviewer mentioned, there were "more correct" and "less correct" options — but you could only choose one. Here I started feeling a bit confused, but okay, I paid attention to this "twist."
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Senior Frontend Developer

Interviewed at Lemon.io

4.8★
Apr 3, 2025

7-question multiple-select test related to FE skills (React, Next.js). The weird part was that all the questions were multi-select, so basically, multiple answers were correct. However, as my interviewer mentioned, there were "more correct" and "less correct" options — but you could only choose one. Here I started feeling a bit confused, but okay, I paid attention to this "twist."

Q: Create Menu with children as per image. How would you close opened children when you click on another parent? How would you keep your children opened when you click on child's children? Q: Implement flag fetching API call. How would you cache it? How would you measure the performance? What would you do if the server fails? Q: Jira sprint board. How would you build it?
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Senior Frontend Engineer

Interviewed at Atlassian

3.2★
Apr 6, 2022

Q: Create Menu with children as per image. How would you close opened children when you click on another parent? How would you keep your children opened when you click on child's children? Q: Implement flag fetching API call. How would you cache it? How would you measure the performance? What would you do if the server fails? Q: Jira sprint board. How would you build it?

First round of interview done by the technical manager - 30 mins. questions from previous experience, project, more of a technical and cultural fit round. Second round with two engineers - Interview of 1 hour including a 30-35 mins of Technical Assessment on React coding exercise and 20-25 mins on past projects, technical / strategic / management / leadership set of questions.
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Senior Frontend Developer

Interviewed at lululemon

4★
Jul 21, 2023

First round of interview done by the technical manager - 30 mins. questions from previous experience, project, more of a technical and cultural fit round. Second round with two engineers - Interview of 1 hour including a 30-35 mins of Technical Assessment on React coding exercise and 20-25 mins on past projects, technical / strategic / management / leadership set of questions.

All practical questions that were relevant to the job role. I was asked to design multiple functional UI elements, debug a section of code, design and iterate/defend a system, and whiteboard data structure/algorithm questions. Read their posts on mediums and you'll get a good sense of what they're looking for and what they'll ask.
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Senior Frontend Engineer

Interviewed at Addepar

3.9★
Feb 1, 2018

All practical questions that were relevant to the job role. I was asked to design multiple functional UI elements, debug a section of code, design and iterate/defend a system, and whiteboard data structure/algorithm questions. Read their posts on mediums and you'll get a good sense of what they're looking for and what they'll ask.

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