Senior Front End Engineer Interview Questions

2,002 senior front end engineer interview questions shared by candidates

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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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?

1. What is Doctype? what will happen if we remove this. 2. What will happen if write footer tag before header? 3. Difference between HTML map and javascript map? 4. How to disable anchor tag from HTML and CSS? 5. Four reasons to choose Angular over React? 6. Javascript design pattern/Modular JS 7. Cookies and Session concept in bank website? 8. How to print a section instead of entire page if we click on print button? 9. Difference between for in loop vs for of loop 10. Difference between proto vs prototype
avatar

Senior Front End Developer

Interviewed at Deloitte

3.8
Mar 17, 2022

1. What is Doctype? what will happen if we remove this. 2. What will happen if write footer tag before header? 3. Difference between HTML map and javascript map? 4. How to disable anchor tag from HTML and CSS? 5. Four reasons to choose Angular over React? 6. Javascript design pattern/Modular JS 7. Cookies and Session concept in bank website? 8. How to print a section instead of entire page if we click on print button? 9. Difference between for in loop vs for of loop 10. Difference between proto vs prototype

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