Senior Front End Engineer Interview Questions

688 senior front end engineer interview questions shared by candidates

1. Arrange blocks in a page where it should show 4 blocks on large screen and 3 on medium screen and 2 on small screen and 1 on XS screen.(I used media queries). They also asked me how can we do it using flex box. 2. Given a array of elements where they asked me to print all the triplets where the sum of those triplets should be equal to 0. 3. Design a restaurant and parking lot in an Object oriented way with all the entity relationships 4. Binary tree traversal 5. Design ebay cart page using react.
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Senior Front End Engineer

Interviewed at eBay

3.9
Apr 17, 2020

1. Arrange blocks in a page where it should show 4 blocks on large screen and 3 on medium screen and 2 on small screen and 1 on XS screen.(I used media queries). They also asked me how can we do it using flex box. 2. Given a array of elements where they asked me to print all the triplets where the sum of those triplets should be equal to 0. 3. Design a restaurant and parking lot in an Object oriented way with all the entity relationships 4. Binary tree traversal 5. Design ebay cart page using react.

Highlights from the assessment: • Write a widget/stats card using HTML/JS/CSS that shows up when hovering over user’s screen name. • We are looking for a demonstration that you can develop to a spec and design as well as write readable and modular code. • You can use any framework of your choice or vanilla JavaScript. We are mostly interested in seeing clean code that’s readable, modular and demonstrates a grasp of MVC.
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Senior Front-end Engineer

Interviewed at Autodesk

4
Jul 11, 2018

Highlights from the assessment: • Write a widget/stats card using HTML/JS/CSS that shows up when hovering over user’s screen name. • We are looking for a demonstration that you can develop to a spec and design as well as write readable and modular code. • You can use any framework of your choice or vanilla JavaScript. We are mostly interested in seeing clean code that’s readable, modular and demonstrates a grasp of MVC.

Very basic interview questions, Node event loop, Javascript event loop, Let, var , const, hoisting, and a very simple coding question to clean up an array containing undefined, alphanumeric and string characters to array containing just numbers.
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Senior Front End Engineer

Interviewed at Scotiabank

3.8
May 15, 2020

Very basic interview questions, Node event loop, Javascript event loop, Let, var , const, hoisting, and a very simple coding question to clean up an array containing undefined, alphanumeric and string characters to array containing just numbers.

Design a game using any language of your choosing where in a person holds a gun and fires at random objects. These objects keep on appearing at random locations and the person can aim in 2D. Once the person hits the object, its health increases (max 100) and if the person misses the target, its health reduces by 10. When the health reaches 0, game over.
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Senior Front End Engineer

Interviewed at Amazon

3.5
Nov 9, 2017

Design a game using any language of your choosing where in a person holds a gun and fires at random objects. These objects keep on appearing at random locations and the person can aim in 2D. Once the person hits the object, its health increases (max 100) and if the person misses the target, its health reduces by 10. When the health reaches 0, game over.

You will be given link to a public repo (Not hard to find online if you are curious) which is a React project with some boilerplate codes. The project also includes mock service API which you are expected to call in order to fetch data and push into a data table.
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Senior Front-End Engineer

Interviewed at iwoca

4.3
Jan 26, 2026

You will be given link to a public repo (Not hard to find online if you are curious) which is a React project with some boilerplate codes. The project also includes mock service API which you are expected to call in order to fetch data and push into a data table.

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