Amazon · Technology
Amazon Software Engineer Interview Questions & Preparation
Quick answer
A Amazon Software Engineer interview combines Amazon's 4-stage process — recruiter screen, online assessment / phone screen, the loop (4–6 rounds), bar raiser & debrief — with the technical and behavioural bar for a Software Engineer. Expect Amazon to assess customer obsession and ownership, alongside core software engineer skills like data structures & algorithms and system design. Prepare software engineer answers framed around what Amazon specifically looks for.
How Amazon interviews Software Engineers
Amazon's hiring is famously principle-driven. The Leadership Principles aren't a poster on the wall — they're the literal scoring rubric. The Bar Raiser, an interviewer from outside the hiring team, ensures the bar stays high regardless of how badly a team needs the hire.
For a Software Engineer specifically, Amazon pairs its standard assessment with a technical bar focused on data structures & algorithms, system design, a core language (e.g. python, java, go). Software engineering interviews test three things: can you code cleanly under time pressure, can you design systems that scale, and can you work in a team. The bar rises with seniority — juniors focus on coding fundamentals, while senior and staff candidates spend more time on architecture and influence.
The Amazon interview process
| Stage | What to expect |
|---|---|
| Recruiter screen | Background, role fit and an overview of the Leadership Principles. |
| Online assessment / phone screen | For technical roles, a coding assessment; for others, a behavioural screen. |
| The Loop (4–6 rounds) | Each interviewer owns specific Leadership Principles; technical roles add coding and design. |
| Bar Raiser & debrief | A Bar Raiser interview plus a debrief where the panel aligns on the decision. |
What Amazon assesses
Software Engineer questions at Amazon
Expect a blend of Amazon's signature questions and core software engineer questions:
- 1Tell me about a time you disagreed with your manager (Have Backbone).
- 2Describe a time you went above and beyond for a customer (Customer Obsession).
- 3Tell me about a time you took ownership of something outside your remit.
- 4Reverse a linked list and explain your approach.
- 5Design a URL shortener — walk me through the data model and scaling.
- 6Tell me about a time you disagreed with a technical decision.
- 7How would you find the first non-repeating character in a string?
- 8Describe a system you built end to end and the trade-offs you made.
- 9How do you approach debugging a production incident?
Example STAR answer
Example answer to: “Tell me about a time you led a technical project under pressure.”
Skills assessed
How to prepare for a Amazon Software Engineer interview
- Prepare 2 STAR stories per Leadership Principle — you'll reuse them across rounds.
- Lead every story with data and your specific actions ('I', not 'we').
- Think out loud — interviewers score your problem-solving process, not just the final answer.
- Clarify the problem and edge cases before you write code.
- Prepare 4–5 STAR stories that show ownership, conflict and impact.
- For system design, start with requirements and scale estimates before drawing boxes.
Software Engineer salary
UK software engineers typically earn £45k–£90k, with senior and big-tech roles reaching £120k+ including equity.
Frequently asked questions
What does the Amazon Software Engineer interview process involve?
Amazon's process runs through recruiter screen, online assessment / phone screen, the loop (4–6 rounds), bar raiser & debrief. For a Software Engineer, the technical rounds focus on data structures & algorithms, system design, a core language (e.g. python, java, go), and behavioural rounds assess customer obsession and ownership.
What are Amazon's Leadership Principles?
A set of 16 principles (Customer Obsession, Ownership, Dive Deep, Bias for Action and more) that form the scoring rubric for every Amazon interview.
How many coding rounds are in a software engineer interview?
Usually 2–4 coding rounds, plus a system design round for mid-level and above and at least one behavioural round.
What's the best way to prepare for a software engineering interview?
Practise data-structure and algorithm patterns out loud, rehearse system design with real requirements, and prepare STAR stories for the behavioural round.
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