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Senior Frontend Developer Interview Questions

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1,363 senior frontend developer interview questions shared by candidates

The interview process was well-structured and covered a wide range of frontend topics, including React, TypeScript, performance optimization, testing, and CI/CD. Questions focused on team collaboration, handling complex projects, web performance, React rendering optimizations, and API efficiency. There were also in-depth discussions on JavaScript concepts like async/defer, blocking vs. non-blocking requests, and font loading issues. Additionally, algorithm and data structure questions were included, along with best practices for writing tests, reviewing merge requests, and maintaining code quality in large-scale projects. The process was challenging but insightful, assessing both technical depth and problem-solving skills.
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Senior Frontend Developer

Interviewed at Semrush

4★
Mar 13, 2025

The interview process was well-structured and covered a wide range of frontend topics, including React, TypeScript, performance optimization, testing, and CI/CD. Questions focused on team collaboration, handling complex projects, web performance, React rendering optimizations, and API efficiency. There were also in-depth discussions on JavaScript concepts like async/defer, blocking vs. non-blocking requests, and font loading issues. Additionally, algorithm and data structure questions were included, along with best practices for writing tests, reviewing merge requests, and maintaining code quality in large-scale projects. The process was challenging but insightful, assessing both technical depth and problem-solving skills.

- What is ShouldComponentUpdate? - What is a Fragment - What is HOC - What is a Component and PureComponent - What is Server Rendering - How to Prevent re-render - How to Pass information between child and parent components - How to Conversion steps of Class component to Hooks - How to use styles in components
avatar

Senior Frontend Developer

Interviewed at Deel

4.4★
Apr 30, 2023

- What is ShouldComponentUpdate? - What is a Fragment - What is HOC - What is a Component and PureComponent - What is Server Rendering - How to Prevent re-render - How to Pass information between child and parent components - How to Conversion steps of Class component to Hooks - How to use styles in components

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