Senior Front End Developer Interview Questions

1,308 senior front end developer interview questions shared by candidates

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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Senior Front End Developer

Interviewed at Thoughtworks

4
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.

TECHNICAL Ques: - Javascript Concepts. - How to manage name, address, and age using useReducer in React CLIENT Ques: - What is your team Structure. ? - work on TypeScript.? - Best Practice for code? - Testing Strategies, covrages? - How is Review your code, any tools? - Which tools you used for checking test courage, and Review code - How handling disagreements with team members. - Where you've completed your assigned user story (and even received a new task from your manager), but your colleague is still working on theirs, here’s how you can handle the situation. - Why do we use React, Angular,and Vue js instead of JavaScript?
avatar

Senior Front End Developer

Interviewed at Synechron

4.1
Jul 11, 2025

TECHNICAL Ques: - Javascript Concepts. - How to manage name, address, and age using useReducer in React CLIENT Ques: - What is your team Structure. ? - work on TypeScript.? - Best Practice for code? - Testing Strategies, covrages? - How is Review your code, any tools? - Which tools you used for checking test courage, and Review code - How handling disagreements with team members. - Where you've completed your assigned user story (and even received a new task from your manager), but your colleague is still working on theirs, here’s how you can handle the situation. - Why do we use React, Angular,and Vue js instead of JavaScript?

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