Front End Engineer Interview Questions

14,982 front end engineer interview questions shared by candidates

promises, event loop in depth, tricky output based questions (not common, really tests). Your experience based, polyfills to write, code block to fix,HLD, LLD is scenario to break down into comp, data models, HM is experience and challenges and fitment discussion
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Software Engineer - Front End

Interviewed at Wayground

3.5
Oct 3, 2023

promises, event loop in depth, tricky output based questions (not common, really tests). Your experience based, polyfills to write, code block to fix,HLD, LLD is scenario to break down into comp, data models, HM is experience and challenges and fitment discussion

They asked me to explain how I would approach optimizing the performance of a web application. It was a great question because it allowed me to demonstrate my practical experience, talk about specific tools and techniques I use, and show how I think through real-world challenges.
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Senior Front End Developer

Interviewed at EPAM Systems

4
Apr 18, 2025

They asked me to explain how I would approach optimizing the performance of a web application. It was a great question because it allowed me to demonstrate my practical experience, talk about specific tools and techniques I use, and show how I think through real-world challenges.

The rest of the questions were just a bunch of JS/React/Personal questions. "Whats the difference between var, let and const", "What's a react hook" "What would you do if a member of your team comments on your PR review and you don't agree with the comments" etc.
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Front End Engineer

Interviewed at Oneflare

4.1
May 18, 2021

The rest of the questions were just a bunch of JS/React/Personal questions. "Whats the difference between var, let and const", "What's a react hook" "What would you do if a member of your team comments on your PR review and you don't agree with the comments" etc.

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