Senior Front End Developer Interview Questions

1,305 senior front end developer interview questions shared by candidates

Phone Interview - 2 Leetcode Medium to difficult questions On Site : 1st Round - Design a React App Component 2nd Round - Confusion Interviewer Round, Use arrays hashtables React, Everything you read in Computer Science 3rd Round - Simple easy to medium questions on strings 4th Round - Design Zillow.
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Senior Front End Developer

Interviewed at Zillow

3.4
Apr 5, 2021

Phone Interview - 2 Leetcode Medium to difficult questions On Site : 1st Round - Design a React App Component 2nd Round - Confusion Interviewer Round, Use arrays hashtables React, Everything you read in Computer Science 3rd Round - Simple easy to medium questions on strings 4th Round - Design Zillow.

Pair-Programming Assessment During this session, I was presented with a pre-existing codebase and instructed to implement two additional features while collaborating in real time with the interviewer. The exercise evaluated my ability to: 1. Apply incremental design and refactoring practices 2. Articulate my reasoning and decisions clearly while writing code. Technical-Depth Interview The subsequent interview concentrated chiefly on core JavaScript concepts, supplemented by several React-specific questions. The discussion probed my mastery of: 1. Fundamental language topics such as scope, asynchronous patterns, prototypes, and recent ES features; 2. General problem-solving and algorithmic reasoning; 3. React principles, including hooks, component lifecycle considerations, and state-management strategies.
avatar

Senior Front End Developer

Interviewed at Thoughtworks

3.1
May 6, 2025

Pair-Programming Assessment During this session, I was presented with a pre-existing codebase and instructed to implement two additional features while collaborating in real time with the interviewer. The exercise evaluated my ability to: 1. Apply incremental design and refactoring practices 2. Articulate my reasoning and decisions clearly while writing code. Technical-Depth Interview The subsequent interview concentrated chiefly on core JavaScript concepts, supplemented by several React-specific questions. The discussion probed my mastery of: 1. Fundamental language topics such as scope, asynchronous patterns, prototypes, and recent ES features; 2. General problem-solving and algorithmic reasoning; 3. React principles, including hooks, component lifecycle considerations, and state-management strategies.

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