Amazon SDE Online Assessment 2025 – AI-Powered Coding Preparation & Simulation

Amazon SDE Intern and New Grad Online Assessment

Amazon SDE II Online Assessment

How to Prepare for the Amazon Online Assessment?

Helpful Prep Tips for the Amazon OA and Interviews

The Amazon SDE Online Assessment (OA) is a critical step in the hiring process for Software Development Engineer roles, including Interns, New Grads, SDE I, SDE II, and SDET.

This assessment evaluates your technical skills, such as coding and system design, alongside your problem-solving abilities and alignment with Amazon’s 16 Leadership Principles. It consists of coding challenges, work simulation exercises, and a work style assessment, all designed to test your readiness for the high standards of working at Amazon.

Securing a role at Amazon means excelling in one of the toughest hiring processes in the tech industry. The Amazon SDE Online Assessment doesn’t just evaluate your technical skills—it tests your ability to problem-solve under pressure and your alignment with Amazon’s 16 Leadership Principles. Proper preparation is critical, and that’s where our AI-powered PrepPack™ sets you apart.

Unlike generic resources, our PrepPack offers real-time AI feedback on coding, helping you refine readability, efficiency, and edge case handling while solving realistic coding challenges. With dedicated practice paths for Interns, New Grads, and Experienced candidates, you’ll gain a competitive edge and ensure you’re fully prepared to meet Amazon’s rigorous standards.

The assessment structure for both position levels is similar and includes three parts. So, they are placed here together.

Note that you get all three OAs regardless of how well you do on them. The result (pass or fail) will only be revealed after you have completed all three segments.

On this segment, Amazon will give you seven debugging questions that you must complete within 20 minutes. These include figuring out what the functions do, and how to fix them, along with additional typecasting errors, etc.

This contains two subsections - the first is a 70-minute coding assessment, in which you need to answer two coding questions.

To master the OA2, It's highly recommended to practice Data Structures and Algorithms. In our complete course, you can find hundreds of coding problems focusing on the most common Data Structures & Algorithms: Arrays, Stacks, Queues, Linked Lists, Trees, Graphs, and lots more.

The second sub-section is a 10-20 minute Workstyles Assessment where you must choose statements that represent your work style.

The last part of the online assessment for interns and new grads is a work simulation, also called "Day-in-the-Life SDE Simulation" (in previous years it included a logical ability test as well).

Amazon gives you up to four hours to complete the work simulation portion, although many need even less time. The SDE Work Simulation is an interactive simulation designed to give you a window into a typical day in the life of an SDE at Amazon.

It includes scenario-based questions that some of them ask you to prioritize potential projects and deal with team conflicts, underperforming colleagues, tight deadlines, and more.

Important: It’s crucial to base your answers on Amazon’s Leadership Principles, as the scenario questions are built around them. You’ll also need to use these principles in your interview, but more on that later.

For more senior SDE roles at Amazon, you’ll get only one assessment invitation email (as opposed to three emails for a New Grad/Intern position).

The 2024 Amazon SDE 2 online assessment includes the following:

Here you get two coding questions and a Coding Approach Questionnaire, in which you need to describe your preferred approach for solving coding questions.

The Amazon SDE 2 coding challenge's opening screen will be similar to this (the coding questions will vary, of course):

Don’t make light of the Coding Approach part as real people will read it, and you’ll be asked about it in your interview.

This is a personality test designed to evaluate your preferred work style (as the name implies) through multiple-choice statements.

A quick survey Amazon has been using on its OAs over the past years.

The best way to prepare for the Amazon SDE online assessments and interviews is by using practice materials that are as close as possible to the real thing.

This ensures that you'll know what to expect and that nothing will catch you off guard. Moreover, you'll get the most out of your prep time, and avoid practicing generic stuff that won't appear on the test at all.

In the preparation pack found on this page, you'll get access to a thorough prep course that covers the question types seen on the actual Amazon coding assessments and interviews.

Use it to sharpen your coding skills and dramatically improve your chances to beat the assessments and interviews.

As you already know, your online coding assessment will be timed. So, it’s crucial that you use a timer while you practice coding questions at home.

Try to analyze how much time every part takes you and finetune it. For example, see how long it takes you to read and understand the question.

The more you practice working under time pressure, the less you will be panicked on test day (plus it’ll make your coding way more effective!).

When you practice for the online assessment, don’t just memorize the answers. Strive to understand the reasoning and patterns behind the solutions, so you can use them on other coding questions.

Amazon changes its coding challenges frequently. So, you might encounter a coding question that hasn’t been uploaded to LeetCode yet.

However, if you know the logic behind every solution, this won’t bother you at all.

It’s one thing to master dozens of coding questions at home. But explaining your solution and thought process in a high-pressure situation like an interview is taking things to a whole other level.

Like almost any other thing in life, it’s a skill that can be improved.

Here are a few tips for you to use as guiding points:

• Get used to talking and thinking out loud as you code. This way, even if you’re stuck with an answer during the interview, you’ll be able to express your thought process (and avoid awkward silences).
• Don’t use abstract or ambiguous wording, make sure to refer to a coding concept by its formal name.
• Break down your coding explanations into logical sequences, thus making it easier for the interviewer to follow along.
• If you have several weeks until your Amazon interview, go to a few “practice makes perfect” interviews in other companies. It will help you gain more confidence, and with time, the answers will start rolling off your tongue.
  
  

As you may already know, Amazon is OBSESSED with its Leadership Principles.

In fact, Amazon recruiters and interviewers expect you to answer using them.

So, to get hired you must learn them by heart and use them throughout your assessments (Workstyles and Work simulation) and interviews.

Specifically, you’d want to be ready with at least two real-life work-related examples for every leadership principle (and don’t use the same example more than once!).

As of 2020, Amazon has replaced its on-site interviews with virtual ones. And I’m talking about a 5-hour interview for experienced roles, and between 45 minutes to a few hours for New Grads and Interns.

Pretty tough.

Now: These interview sessions cover not only behavioural questions but also coding solutions on virtual whiteboards. So, make sure you know how to run it smoothly and without any technical glitches that could mess things up.

The Amazon Bar Raiser interview is hard. I won’t lie to you.

The coding question is going to be a difficult one. And on the behavioural section, the Bar Raiser interviewer will drill hard on questions, asking you about every little detail you provide (yes, this will be annoying).

But if you prepare beforehand, you can significantly increase your chances of passing it:

1. First, keep in mind that the interviewer doesn’t have anything against you. It’s just part of Amazon’s hiring policy to make part of the interview much harder, so it shortlists the most suitable candidates.
2. Second, when you practice your answers at home, ensure to break them down into little pieces and details, so you’ll be ready with an instant comeback for any question.
3. And lastly, remember that the Bar Raiser is a “freak” of Amazon’s Leadership Principles. So, your whole interview will be based around them.

Make sure you visit your thorough prep guides for the Google Software Engineer Interview and Microsoft Codility Test.