Amazon interview questions

752 coding problems in the Placed library have been reported in Amazon software engineering interviews, along with 20 behavioral questions. Every one can be run as a timed mock interview with a voice interviewer and a scored report.

Patterns that come up most

• Hashing49
• DFS39
• Simulation38
• Greedy35
• Two pointers34

Problems to start with

• Two SumEasy
• Valid ParenthesesEasy
• Reverse Linked ListEasy
• Best Time to Buy and Sell StockEasy
• Longest Substring Without Repeating CharactersMedium
• 3SumMedium
• Container With Most WaterMedium
• Longest Palindromic SubstringMedium
• Word SearchMedium
• Merge K Sorted ListsHard
• Trapping Rain WaterHard
• Word LadderHard

That is 12 of 752. Pro adds a company filter to the full library. See pricing.

Behavioral questions

• Ownership & Initiative

  Tell me about a time you took on a problem that was clearly outside your job description because you saw it needed to be done. What made you step in? How did you balance it against your primary responsibilities, and what was the outcome?

• Ownership & Initiative

  Describe a project where you were the person who made things happen, not just the person assigned to it. What specifically would not have shipped without you? What did you do that nobody asked you to do?

• Ownership & Initiative

  Tell me about a time you inherited a codebase, process, or product in bad shape. How did you decide what was worth fixing versus tolerating? What concrete improvements did you drive, and how did you measure progress?

• Ownership & Initiative

  Tell me about the most impactful thing you've built or changed without being told to. How did you identify the opportunity? How did you get it prioritized when it wasn't on anyone's roadmap, and what impact did it have?

• Ownership & Initiative

  Describe a time you owned a failure end-to-end — including communicating it up the chain and driving the follow-up. What happened? How did you take responsibility without deflecting, and what systemic changes came out of it?

• Dealing with Ambiguity

  Describe a time you had to choose between two architectural approaches with real trade-offs and no clear winner. How did you make the call? How did you communicate the reasoning so the team understood why it wasn't arbitrary?

• Collaboration & Influence

  Describe a cross-team project where you were responsible for coordination but not the direct manager of the people doing the work. How did you keep momentum? How did you handle it when someone else's priorities drifted away from yours?

• Collaboration & Influence

  Describe a time you wrote something — a doc, an RFC, a comment thread — that changed the direction of a project. What made it persuasive? How do you approach writing when the goal is decision-making rather than information sharing?

Practice a behavioral round and the interviewer asks follow-ups on your answers.

Company tags come from publicly shared interview reports. They are not confirmed by Amazon and do not imply affiliation or endorsement.