Senior Frontend Engineer Interview Questions

1,542 senior frontend engineer interview questions shared by candidates

1. Hackerrank: 5 UI/FE related questions, two easy/average algo problems in JS (nothing like binary trees, etc. but a real-life problem), plenty of time to do this. 2. Code Review - I was tasked to conduct React/TS code review on a PR consisting of 4 files. The focus was not only on the functionality but on performance, accessibility, maintainability, and readability too. 3. Questions - UI/FE related questions inside Miro. You are presented with a wireframe and asked how would you code it (without actually coding it - you are just discussing). Other questions were focused on FE security, accessibility, etc. Be aware, that they are going to ask you more and more questions about a specific topic (going deep) until you are not able to answer - it's not bad to say "Yeah this I don't know anymore." 4. Behavioral Interview - classic behavioral questions like conflicts with colleagues, co-op styles, your failures, achievements, etc. They are going to send you a link to the STAR method before, so check that out - they expect you to answer according to this format here.
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Senior Software Engineer - UI/Frontend

Interviewed at Mollie

4.6
Aug 25, 2022

1. Hackerrank: 5 UI/FE related questions, two easy/average algo problems in JS (nothing like binary trees, etc. but a real-life problem), plenty of time to do this. 2. Code Review - I was tasked to conduct React/TS code review on a PR consisting of 4 files. The focus was not only on the functionality but on performance, accessibility, maintainability, and readability too. 3. Questions - UI/FE related questions inside Miro. You are presented with a wireframe and asked how would you code it (without actually coding it - you are just discussing). Other questions were focused on FE security, accessibility, etc. Be aware, that they are going to ask you more and more questions about a specific topic (going deep) until you are not able to answer - it's not bad to say "Yeah this I don't know anymore." 4. Behavioral Interview - classic behavioral questions like conflicts with colleagues, co-op styles, your failures, achievements, etc. They are going to send you a link to the STAR method before, so check that out - they expect you to answer according to this format here.

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

3.1
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?

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