For a deeper understanding of Amazon's engineering culture and technical challenges, start with our Amazon engineering deep dive.
For additional preparation, see our guide on Amazon Engineering Interview Guide.
The behavioral round is where many candidates fall short — prepare with our behavioral interview guide.
Technical rounds at Amazon lean heavily on architecture — our system design interview guide covers the key patterns you'll need.
Why Leadership Principles Are the Whole Game
At other FAANG companies like Google or Meta, behavioral questions are roughly half the evaluation. At Amazon, they're woven into every interview, including technical rounds. An Amazon phone screen is 60 minutes: expect 20–25 minutes of LP behavioral questions even before the coding starts.
The Bar Raiser — a trained interviewer from outside your target team — exists specifically to maintain the LP standard. They're looking for "raise the bar": would hiring this person make Amazon's LP average better or worse? That's the actual question.
What this means practically: You can't out-code a bad LP score. Candidates who solve every LeetCode problem but give weak behavioral answers don't get offers. Compare this to Google's "Googlyness" or Microsoft's growth mindset evaluations — Amazon's LPs are more structured and heavily weighted.
The 16 Leadership Principles: What They're Actually Testing
Amazon updated its list to 16 LPs in 2021 (added "Strive to be Earth's Best Employer" and "Success and Scale Bring Broad Responsibility"). Here's the full list with the interview signal each LP is measuring:
| Leadership Principle | What Interviewers Are Measuring |
|---------------------|--------------------------------|
| Customer Obsession | Do you start from the customer's problem, or your preferred solution? |
| Ownership | Do you take responsibility for things outside your formal job scope? |
| Invent and Simplify | Can you identify complexity and remove it, not just manage it? |
| Are Right, A Lot | Do you have strong judgment? Do you seek disconfirming evidence? |
| Learn and Be Curious | Do you pursue knowledge proactively, not just when required? |
| Hire and Develop the Best | Do you raise the bar when interviewing? Do you grow your reports? |
| Insist on Highest Standards | Do you maintain your quality bar under time pressure? |
| Think Big | Are your ambitions and mental models at the right scale for your level? |
| Bias for Action | Do you act decisively with incomplete information? |
| Frugality | Do you accomplish more with less rather than asking for more resources? |
| Earn Trust | Do you build credibility through transparency and reliability? |
| Dive Deep | Do you get to root cause, or do you accept surface-level explanations? |
| Have Backbone; Disagree and Commit | Do you speak up AND follow through after decisions are made? |
| Deliver Results | Do you ship outcomes, not just effort? |
| Strive to be Earth's Best Employer | Do you create environments where people do their best work? |
| Success and Scale Bring Broad Responsibility | Are you aware of broader societal and environmental impact? |
The STAR Format: Amazon's Required Answer Structure
Amazon expects STAR format for every behavioral answer. This isn't optional — interviewers are explicitly trained to probe for it:
- Situation: Set the context. What was at stake? Why did it matter?
- Task: What were you specifically responsible for?
- Action: What did you do? (Not your team — use "I," not "we")
- Result: What happened? Quantify it. Revenue, users, efficiency, time.
The most common STAR mistake
Spending 70% of the answer on Situation and Task, then rushing through Action and Result. Interviewers care most about what you specifically did and what measurably changed. If you have 2 minutes, allocate it like this: 20% S, 10% T, 50% A, 20% R.
The 10 Questions You Will Definitely Face (With Example Answers)
Customer Obsession
Q: Tell me about a time you went above and beyond for a customer.
Weak answer: "I always prioritize the customer." (Generic, no story)
Strong answer structure: A specific customer problem you discovered independently (not assigned to you), what you did that was outside your normal job scope, and a measurable result tied to customer impact.
Example signal: "I noticed our API documentation was causing 30% of support tickets — customers couldn't find authentication examples. I rewrote the docs on my own time, which reduced auth-related tickets by 40% over the next quarter."
Ownership
Q: Describe a time you took on a task outside your job responsibilities.
The Ownership LP is specifically about doing "unsexy" work without being asked. Interviewers are listening for whether you identified the problem yourself or were assigned it.
What fails: "My manager asked me to help with the deployment process." (That's a task, not ownership)
What works: "I noticed our on-call rotation was burning out the team. Nobody owned fixing it because it cut across teams. I ran the postmortems, identified the three recurring alert categories causing 80% of pages, and implemented automated remediation — without being asked."
Bias for Action
Q: Tell me about a time you had to make a decision with limited data.
Amazon explicitly trains for decisions at 70% information. The failure mode here is either (a) waiting for more data, or (b) acting recklessly without identifying what you didn't know.
Strong answer pattern: Name the information you had, name the key uncertainties, explain why you acted anyway, and show the checkpoint you built in to course-correct if needed.
Have Backbone; Disagree and Commit
Q: Tell me about a time you disagreed with a decision but had to commit to it.
This LP has two halves and candidates often nail only one. "Have Backbone" means you spoke up with a well-reasoned argument. "Disagree and Commit" means that once the decision was made, you executed it without passive resistance.
Interviewers are specifically listening for: Did you surface your disagreement with data (not just opinion)? Did you commit fully once the call was made?
Red flag answer: "I disagreed, said so once, and then just did it." (Too passive)
Red flag answer: "I disagreed, said so, and eventually they came around to my view." (Missing the 'commit' half)
Dive Deep
Q: Tell me about a time you found a problem others missed.
This LP separates candidates who accept surface explanations from those who investigate root cause. Your story should have a moment where you went one or two levels deeper than the obvious answer.
Example: "Our conversion rate dropped 8% overnight. The team blamed a new feature release. I didn't stop there — I segmented the data by device type and found the drop was entirely on Android 12 devices. A dependency update had broken our payment SDK on that OS version specifically. Reverting that single dependency recovered the full 8%."
Deliver Results
Q: Describe a time you had to deliver under a tight deadline.
This is not just a "work hard" question. Amazon wants to see prioritization — what did you cut, defer, or delegate? Results without trade-off decisions don't demonstrate the LP.
Invent and Simplify
Q: Describe a time you found a simple solution to a complex problem.
The key word is simplify. The signal Amazon wants is someone who identified unnecessary complexity and removed it — not someone who added a clever new system.
Earn Trust
Q: Tell me about a time you had to earn the trust of a skeptical stakeholder.
Trust at Amazon is built through transparency and reliability, not charisma. Your story should include a specific thing you did to create transparency (proactive status updates, acknowledging a failure directly, sharing data that reflected poorly on your team).
Insist on Highest Standards
Q: Describe a time when you weren't satisfied with "good enough."
This LP is about raising the bar on things that others have accepted as sufficient. Interviewers want to see that you held your standard even when it created friction or took longer.
Think Big
Q: Tell me about a time you proposed a solution that was much larger in scope than what was originally asked for.
For senior and principal roles, this question matters a lot. The signal is whether your mental model operates at the right scale. SDE I candidates can answer with team-level scope; SDE III candidates need organizational or cross-team scope.
Preparing for the Bar Raiser
The Bar Raiser round is often the most disorienting because it's the most LP-intensive. A few things to know:
- The Bar Raiser will follow up aggressively. Expect "Tell me more about that" and "What would you have done differently?" after every answer. These aren't hostile — they're testing whether your story holds up or whether you're pattern-matching on rehearsed answers.
- They're evaluating across all 16 LPs simultaneously. They've seen your answers from the other rounds in your feedback packet. They'll probe the LPs where earlier interviewers flagged uncertainty.
- "Raise the bar" is literal. You must score better than the median current employee at your target level. Strong answers from your other rounds won't save a weak Bar Raiser round.
Building Your Story Bank: The Practical Approach
Most candidates make one of two mistakes: they prepare too many stories (shallow coverage of many) or too few (one story stretched to cover every LP).
The right approach: prepare 8–10 deep stories with enough detail that you can angle each one toward 2–3 different LPs. A story about owning a critical incident naturally covers Ownership, Deliver Results, Dive Deep, and Bias for Action — you just emphasize different aspects.
For each story, document:
- The specific numbers (revenue, users, percentages, time)
- What you did vs. what your team did
- What you would do differently in hindsight
- Which 3 LPs it demonstrates most strongly
Practice Amazon LP Interviews Before the Real Thing
The Bar Raiser isn't assessing what you know — it's assessing how you perform under sustained LP questioning. The follow-up questions ("What would you have done differently?", "Why did you choose that approach over X?") are what separates candidates who've genuinely reflected on their experiences from those who've memorized talking points.
Interview Simulator runs full Amazon behavioral mock interviews with AI that probes each answer with follow-up questions the way a real Bar Raiser would. You get LP-specific scoring after each session, showing exactly which principles need more work.
If you have an Amazon loop coming up, run through at least 3 mock behavioral sessions at app.codeswiftr.com before your real interview. The difference between a rehearsed answer and a natural one under pressure comes from repetition — not more preparation.
Related Articles
- Amazon Interview Guide
- Behavioral Interview Mastery: The Complete Guide
- FAANG Behavioral Interview: STAR Method
- The Complete System Design Interview Guide
- Behavioral Interview Mastery: Advanced Guide
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