Amazon SDE Online Assessment: Format, Rules, and What Changed
Amazon's official OA page lists a 70-minute coding section, Workstyles, and (full-time only) a Work Simulation. Here's what's confirmed, what's reported, and how to prep.
TL;DR: Amazon's official SDE OA page lists three scored pieces for full-time roles: a coding assessment (about 70 minutes), a Workstyles survey (about 15) and a Work Simulation (about 60). Interns get the first two. The famous "debug seven snippets in 20 minutes" section isn't on the current official page. Copy/paste and print screen are restricted, and browser use is logged.
Source note: format, timings and rules below come from Amazon's own SDE OA prep page. Anything about AI policy or the older debugging section comes from press coverage or third-party guides and is labeled as such.
If you search "Amazon online assessment" you'll find a pile of guides that all describe the same thing: an OA1 with a debugging round, an OA2 with coding, and a work-style quiz. Some of that is out of date. Here's what Amazon itself says now, and where the gaps are.
What Amazon Says the OA Contains
The OA is the first step for both full-time and internship SDE roles, and Amazon says no Amazon-specific knowledge is needed. The official page breaks it down like this:
- Coding assessment, about 70 minutes on average.
- Workstyles, about 15 minutes. This is the scenario-style questionnaire tied to Leadership Principles.
- Work Simulation, about 60 minutes. Listed for full-time roles only.
- Feedback survey, about 5 minutes.
Amazon tells full-time candidates to set aside up to two hours. The internship flow is shorter, around 90 minutes, and the internship page I reviewed lists no Work Simulation. Depending on your country, the full-time OA can also come as one part or two, and your invitation email says which.
That last detail is the thing most guides skip. If you're an intern, a new grad, or applying outside North America, your sequence may not match the article you just read.
The Debugging Section: Current or Legacy?
The older structure, a debugging section of roughly seven broken snippets in about 20 minutes followed by a separate coding section, is still described as current in many third-party guides. It's the first thing top-ranking pages tell you to drill.
I couldn't find it on the official page, and I couldn't find an official changelog saying when it went away, so I won't put a date on it. The practical read: don't assume either way. Your invitation email lists your sections, and that's the only source that applies to you. If debugging does show up, practice it, since reading unfamiliar code for the bug is cheap to rehearse. If it doesn't, you haven't lost anything.
The Rules That Trip People Up
These are the parts of Amazon's page that candidates tend to learn too late:
- You need a laptop or desktop. Plan the environment ahead of time rather than discovering a problem in the first five minutes.
- Public documentation is allowed. Amazon names resources like the JDK docs and the C++ STL reference. Sites that require a login, or private repositories, are not.
- Browser usage is logged. "Allowed to look things up" and "unobserved" are different things.
- Print screen ends the session. Amazon says using it terminates the assessment and locks you out.
- Avoid copy/paste. The wording is that Amazon expects the code to be your own.
Amazon's page also mentions webcam and ID requirements in its FAQ, with ID applying to North America. I wasn't able to confirm the details, so check your invitation rather than relying on a summary.
What About AI Tools?
The official OA page I reviewed doesn't have an explicit sentence about AI or generative AI. Don't let any guide tell you it does.
What exists is reporting. Business Insider covered internal recruiter guidance saying candidates may be disqualified for using generative AI unless it's explicitly allowed, and an Amazon spokesperson said candidates acknowledge they won't use unauthorized tools, including GenAI (summarized by GeekWire). That's the best public signal, and it's secondhand.
So: unless your invitation says otherwise, assume the coding section is yours alone. If you're curious how other employers draw the line, our pieces on Anthropic's policy and HackerRank's AI-assisted format cover both ends.
How to Prepare Without Guessing
- Read your email twice and write down the sections and the time limits. Everything else is a guess until you do.
- Practice 70-minute blocks with two or three problems, not single problems untimed. The clock is the real opponent.
- Use only docs while practicing, matching the rule you'll face. If you can't solve it without searching a solution, you've found the gap.
- Take Workstyles seriously. It's short, but Amazon says the OA assesses Leadership Principles too. Read the official principles and think about which behaviors you'd actually choose, not which sound best. If it helps to rehearse, our guide on Leadership Principles stories is the follow-on for the live rounds.
- Rehearse the work simulation mindset if you're full-time: it's about prioritizing under constraints, so practice explaining your choices out loud.
Where the live rounds start: if you pass the OA, the next test is explaining your reasoning to a person. OA Copilot is built for online assessments on HackerRank, CodeSignal and Codility, so read your invitation's rules before deciding how to use any tool. For the rounds after that, a mock interview with follow-up questions is where most candidates find out they can't explain their own solution.
FAQ
Does Amazon still have the debugging section in the SDE online assessment?
The current official page lists a coding assessment, Workstyles and, for full-time, a Work Simulation, with no mention of the older debugging round. Many guides still describe it, so rely on your invitation email.
How long is the Amazon SDE online assessment for interns vs new grads?
Full-time lists about 70 + 15 + 60 + 5 minutes, with up to two hours set aside. Internship lists about 70 + 15 + 5, around 90 minutes, with no Work Simulation.
Can you use Google or documentation during the Amazon OA?
Public documentation such as the JDK docs or C++ STL is allowed. Login-gated sites and private repos aren't, and browser use is logged.
Does Amazon allow AI tools like ChatGPT during the online assessment?
The official page doesn't say explicitly. Press reports describe recruiter guidance that unauthorized GenAI use can disqualify a candidate. Assume it isn't allowed unless told otherwise.
Author · Alex Chen. Career consultant and former tech recruiter. Spent 5 years on the hiring side before switching to help candidates instead. Writes about real interview dynamics, not textbook advice.
