Amazon Practice Web Developer Interview Questions

Amazon Front-End Engineer Interview Process

The Amazon Front-End Engineer interview process comprises four main interview stages:

The Initial HR Screen The HR Screening involves a quick discussion with a recruiter from Amazon’s Human Resources department. Recruiters try to ascertain if you’re fit for the role you applied for based on your skillset and experience.Â

The Technical Phone Screen: This is a remote interview that typically lasts for 30-40 mins. The technical phone screen is conducted by a hiring manager responsible for the recruitment of Front-End Engineers. You’ll be asked to solve 1-2 coding problems on core data structures in this round. The coding questions asked in this round won’t be complex. This round is meant to test your approach towards problem-solving.Â

The Onsite Interview: The Amazon onsite interview comprises 4-5 rounds of interviews, depending on the seniority of the role you’re interviewing for. The main rounds of the onsite interview include:Â

  • The Coding Round: Questions in this round will be of medium/hard difficulty, based on algorithms and core data structures. An additional round may be conducted if you’re interviewing for an IC (Individual Contributor) role.Â
  • The Front-End Fundamentals Round: In this round, the hiring manager will test your knowledge on JavaScript, HTML, CSS, Libraries, DOM, and other front-end fundamentals. This round lasts for approximately 30 minutes.Â
  • The Systems Design Round: This round tests your ability to understand scalable systems. You may be asked to design an arbitrary scalable system with low latency according to a given set of inputs. Questions in this round will focus on front-end development and user interface design.
  • The Front-End Systems Design Round: This round is for engineers with over 5 years of experience applying for senior positions. You will be tested on JS fundamentals and various other front-end design concepts. You’ll be presented with a design problem, and your solution will be assessed based on modularity, performance, and accessibility.Â
  • The Behavioral Round: This round comprises one round to test your responses to workplace situations and a Bar Raiser round that evaluates if you’re a cultural fit based on Amazon’s 14 Leadership Principles and your past projects.Â
  • Most Common Amazon Web Developer Interview Questions

    amazon practice web developer interview questions

    Now, for the moment you’ve been waiting for: here are some of the top web development interview questions asked during Amazon interviews.

  • How would you implement integer division if your language did not offer it?
  • Vertically and horizontally center an element on the screen using CSS.
  • Implement a SortedMap in JavaScript
  • How do you resolve conflict with coworkers, and what did you learn from the experience?
  • How would you make your web pages load fast?
  • Write a JavaScript function that creates HTML based on a given input dataset.
  • Implement Sum (3)(4)(5)=12 with JavaScript
  • How would you make this markup more accessible for a visually impaired person? Hearing impaired? How about a person on a slow network?
  • Build a file uploader.
  • Take two arrays and compare them to find duplicates. Only list each duplicate once.
  • Outline how you would implement a chess game in a language of your choice.
  • Make an accordion where when clicked, text expands from it and when another item is clicked, the first one collapses and the second one expands.
  • What is the importance of CSS selectors? Where do you use them?
  • How would you reverse a linked list?
  • How would you implement document.querySelectorAll manually using recursion?
  • It’s important to note that these are only 15 of the many questions that you may face during a web development interview with Amazon. Per most interviews, you can expect a combination of both skill and personality-based questions. It’s always a good idea to do your research on prominent interview questions and web development concepts before attending your interview.

    Q Differentiate between centralized and distributed version control systems.

    Centralized version control system stores all the file versions on a central server, and none of the developers have a complete copy of the files in the local system. So if the central server fails, all the projects data is lost.Â

    However, in a distributed version control system, all developers have a copy of their systems code versions. Hence, this system removes the need for a single backup location, enables them to work offline, and ensures that there is no danger when the server crashes.

    Amazon Front End Interview Prep | Software Engineer

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