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Amazon Front End Interview Guide

Amazon Front End Interview Guide

The one-stop to prepare well for your Amazon front end interviews
65 known questions with solutions
Insider tips
Recommended resources

Amazon front end interviews combine standard software engineering rigor with practical browser work. Expect JavaScript, HTML, CSS, DOM, accessibility, data structures, and frontend system design to matter alongside Amazon's Leadership Principles.

Do not prepare as if the interview is only LeetCode or only React. Amazon's frontend materials emphasize Vanilla JavaScript, semantic HTML, scalable UI code, testing, edge cases, keyboard accessibility, and explaining your decisions clearly. Recent candidate experiences still show team variance: some loops allow React, some restrict candidates to plain HTML/CSS/JavaScript, and some include a DSA round even for frontend roles.

Interview process

Amazon's official FEE preparation page describes an online assessment, a 60-minute technical phone screen, and an interview loop. The phone screen divides time between coding and Leadership Principles.

The published loop consists of four 55-minute interviews. The downloadable PDF below describes a different schedule, so use the current role-specific page and your recruiter's schedule for timing. Expect both technical and behavioral evaluation, including at least one frontend system design question.

Candidates have encountered component coding, algorithms, and browser fundamentals within those stages. Confirm framework availability for each coding session and prepare Leadership Principles examples for technical interviews as well as any dedicated behavioral discussion.

Coding rounds

Amazon's front end guide says the preferred interview language is Vanilla JavaScript and that candidates may code in a LiveCode-style online editor. The same guide says interviewers evaluate problem solving, executable code, data structures, time and space complexity, semantic HTML, verification, communication, scalability, accessibility, and keyboard interaction.

Practice in a plain editor without relying on autocomplete. You should be able to build small UI pieces, reason about DOM updates, write clean event handling, validate input, handle async data, and test edge cases. Interview rounds commonly mention form validation, accordion-style widgets, image carousels, tabs, like buttons, DOM tree traversal or rendering, API or framework utility implementation, and DSA questions.

A timed session can combine user interface coding questions with a few quiz questions about the implementation. Two starting points are Contact Form and Accordion; include accessible validation and keyboard support in your practice. A separate JavaScript data-transformation exercise adds coverage of edge cases and testing.

System design rounds

Amazon's FEE materials say candidates should expect at least one frontend system design question. The downloadable guide gives web-scale application examples such as typeahead, infinite scrolling, and carousel widgets. It also calls out API contracts, frontend-backend data communication, async communication, caching, security, session maintenance, client-server communication, scalability, and adaptability.

Practice a product page and a seller dashboard. For the product page, prioritize image loading, accessible variant selection, and cart updates. For the dashboard, explain pagination versus virtualization and how stale data affects edits. Candidates have encountered follow-ups on rendering speed and backend interaction, so compare concrete alternatives.

With the Front End System Design Playbook as an outline, select a problem from the system design question set. The shopping journey spans several useful exercises: E-commerce Website, Autocomplete, and Image Carousel. Senior candidates should also rehearse a news feed, then examine how the design changes across regions, on low-end devices, and during partial service failure.

Values and behavioral rounds

Leadership Principles are a major part of Amazon interviews and can appear inside technical rounds. Amazon's own guidance recommends concrete examples and STAR-style structure. For frontend roles, prepare stories about improving customer experience, fixing reliability or performance issues, raising accessibility quality, handling ambiguous product requirements, partnering with design/backend/product, and learning from a launch or incident.

For each story, include the customer problem, constraints, options considered, your specific action, measurable result, and what changed afterward. Useful principles to map include Customer Obsession, Ownership, Bias for Action, Dive Deep, Earn Trust, Deliver Results, Learn and Be Curious, and Insist on the Highest Standards.

  1. Read Amazon's official interview pages and the Amazon front end guide. Note the expected FEE areas: Vanilla JavaScript, DOM, semantic HTML, CSS layout, data structures, async behavior, accessibility, testing, and system design.
  2. Practice UI coding in Vanilla JavaScript first, then repeat selected tasks in React if your recruiter confirms framework choice is flexible. Prioritize forms, accordions, tabs, modals, data tables, carousels, and DOM traversal.
  3. Keep DSA sharp enough for phone screens and onsite rounds. Arrays, strings, stacks, queues, maps, sets, trees, BFS/DFS, recursion, sorting, memoization, and Big O are all relevant to Amazon's official frontend guide and interview patterns.
  4. Rehearse frontend system designs around Amazon-like products: search autocomplete, product detail pages, checkout, infinite content, image galleries, dashboards, and account/session flows. Explain API contracts and client-side reliability, not just components.
  5. Prepare Leadership Principles stories before technical practice feels complete. Amazon interviewers often ask follow-ups, and the official guide describes multiple behavioral questions per interviewer. Know the numbers, tradeoffs, disagreements, failures, and customer impact behind each story.

Official resources

Company blog posts

Community resources

Known Amazon front end interview questions

  • AccordionBuild an accordion component that displays a list of vertically stacked sections with each containing a title and content snippet
    Available frameworks
  • Accordion IIPremiumBuild an accessible accordion component that has the appropriate ARIA roles, states, and properties
    Available frameworks
  • Accordion IIIPremiumBuild a fully accessible accordion component that has keyboard support according to ARIA specifications
    Available frameworks
  • Array.prototype.filterPremiumImplement the Array.prototype.filter() method
    Languages

Amazon Front End Interview Preparation Guide

Need a comprehensive resource to prepare for your Amazon front end interviews? This all-in-one guide provides you with everything you need to ace them.

Find official information on Amazon's front end interview process, learn exclusive insider tips and recommended preparation strategies, and practice questions known to be tested.

Recommended preparation strategy

We provide a recommended strategy that guides you through the interview preparation process. Start by reading official preparation guides, then practice actual questions that are known to be tested in Amazon's interviews. Finally, broaden your study to cover all relevant topics. Our guide ensures you are systematically prepared for every stage of the Amazon front-end interview.

Amazon's front end interview process

We've consolidated some of the official information from Amazon about their interview process and recommended preparation strategies. Go through them prior to anything else to familiarize yourself with the evaluation criteria and focus areas.

Insider tips from our network

Gain valuable insights from our network of Amazon interviewers. Learn what to focus on in your preparation to gain the most mileage in any preparation window.

You can study and practice these topics directly on our platform. We provide an in-browser coding workspace and a large bank of practice questions, solutions and test cases written by big tech ex-interviewers.

Practice Amazon front end interview questions

The fastest way to prepare for any interview is to practice questions known to be tested at the company. Our guide includes a collection of 65 known questions to be tested in Amazon front end interviews, with topics such as Accessibility, Array, Polyfills, Forms, Closure, State Management, Async, Recursion, Tree, JavaScript, Web APIs, Browser, Performance, Networking, Stack, String, CSS, UI component, SEO. Practice with these real interview questions to familiarize yourself with the difficulty and types of questions you might face interviews.