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Amazon interview notes, page 94 of 159

FAANG / Big Tech

Most of these Amazon write-ups come from Software Engineers (1,092), then Data Scientists (182) and Product Managers (165). The most reported rounds are the technical phone screen (618), the behavioral / leadership round (309), the online assessment (228) and the system design round (159).

1581 interview notes · updated Oct 2026

Amazon·Software Engineer·Technical Phone Screen

Jun 2026
Amazon SWE interview centered on a debugging exercise for their return risk system. You're given a scenario where customers have a risk score based on return history, item value, account age, etc., and the system is supposed to block returns for high-risk cases but isn't working correctly. The task was to find 6 bugs using an AI assistant.
  • You're given a customer return risk system that assigns scores based on factors like return history, item value, and account age. High-risk customers should be blocked from returning items, but the system is incorrectly allowing returns in some cases. Using an AI assistant, identify 6 bugs in the system.

“This was less of a coding question and more of a structured debugging exercise, which I wasn't expecting.”

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Amazon·Software Engineer·Online Assessment (OA)

Jun 2026
Amazon SWE online assessment, one algorithmic problem centered on topological sort for course scheduling. Pretty standard graph problem but the cycle detection edge case tripped me up more than I expected.
  • Given n courses labeled 0 to n-1 and a list of prerequisite pairs where [a, b] means b must come before a, return any valid ordering of all courses that satisfies the prerequisites. If no valid ordering exists (i.e. there's a cycle), return an empty array.

“Knew immediately it was topological sort, which felt reassuring.”

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Amazon·Software Engineer·Technical Phone Screen

Jun 2026
Amazon SWE coding round with a BFS problem on a 2D matrix. The interviewer dialed back the complexity a bit mid-interview, focusing on the minimum steps portion. Not the hardest version of this problem type but still took some thinking.
  • Given a 2D matrix, find the minimum number of steps to reach from a source cell to a target cell using BFS.

“The interviewer simplified it partway through which honestly helped me get unstuck.”

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Amazon·Product Manager·Onsite - Product Sense / Strategy

Jun 2026
Amazon PM interview with a logistics-flavored product question about delivery efficiency. One question, no frills, but it required more structure than I expected going in.
  • How would you design a system or process to ensure a delivery driver completes over 200 packages in an 8-hour shift?

“I went straight to route optimization and then realized I was basically describing Google Maps.”

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Amazon·Software Engineer·Onsite - Behavioral / Leadership

Jun 2026
Behavioral round at Amazon for a SWE role. Just one question but it's the kind that can spiral fast if you're not careful.
  • Can you describe a time when you pushed back on a decision made by management?

“This one tripped me up a bit.”

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Amazon·Software Engineer·Onsite - Coding / Algorithms

Jun 2026
Amazon SWE coding round, one problem the whole time: rotate a matrix in-place. Felt straightforward on the surface but the in-place constraint is where people slip up.
  • Given an N×N matrix, rotate it 90 degrees clockwise in-place using as close to O(1) extra space as possible.

“The example they give you basically hands you the answer if you stare at it long enough.”

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Amazon·Software Engineer·Technical Phone Screen

Jun 2026
Amazon SWE interview with a frontend-leaning coding question. Pretty straightforward session, just one question from what I can tell.
  • How would you build a carousel component using only vanilla JavaScript (no frameworks or libraries)?

“I went with the obvious approach: a container div, prev/next buttons, and tracking an index to know which slide is visible.”

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Amazon·Product Manager·Onsite - Behavioral / Leadership

Jun 2026
Amazon PM behavioral round, one question about juggling competing deadlines. Pretty standard but worth thinking through before you go in.
  • Describe a situation where you had two deadlines landing at the same time and how you handled it.

“I had a decent example ready but fumbled the part about how I actually communicated tradeoffs to stakeholders.”

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Amazon·Software Engineer·Onsite - System Design / Architecture

Jun 2026
Amazon system design round, got asked to build a recommendation engine for a music streaming product. Pretty open-ended and I wasn't totally sure how deep to go on the ML side versus the infrastructure side.
  • Design a recommendation system for a music streaming platform similar to Spotify.

“I started with the data layer and worked outward, which in hindsight was probably backwards.”

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Amazon·Data Scientist·Onsite - Behavioral / Leadership

Jun 2026
Behavioral round for a Data Science role at Amazon. One question, but it had a lot of moving parts and I felt like I was juggling the whole time trying to hit everything they wanted.
  • Tell me about a time you solved a complex problem by digging into the details. Walk through the context, what signals you looked at, how you validated them, any tradeoffs you navigated, how you brought stakeholders along, and what you'd change if you did it again.

“This is basically four questions stitched into one and the interviewer will notice if you skip a piece.”

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