Best Tools to Prepare for an Amazon Software Engineer Interview (2026)

To prepare for an Amazon software engineer interview, cover the two things Amazon tests: technical skill, through live code or system design, and its Leadership Principles. An SDE II loop is four 55-minute interviews after an online assessment, and an SDE III loop is five after a 60-minute phone screen. In each interview, the interviewer typically asks two or three questions about how you have shown the principles, and the rest is code written live in an online editor, or system design. For spoken coding and system design rounds, DevInterview.AI runs mock interviews set to Amazon and your level, drawing on 1,600+ Amazon-tagged coding questions, with a voice interviewer that asks the follow-ups, unlimited for $19.99 a month with the first interview free. For the question list, LeetCode Premium's Amazon tag is the standard. For the Leadership Principles, start with Amazon's own interview pages, which are free. For a read from someone who has run Amazon interviews, interviewing.io and IGotAnOffer both sell sessions with Amazon interviewers.

Disclosure: we build DevInterview.AI, and this is our site. Every price below comes from the vendor's own pages, checked between October 8 and October 13, 2026, with sources at the bottom. The Amazon process details come from Amazon's own interview pages, and our guide to the Amazon SDE interview process covers each stage in more depth.

What Amazon's coding rounds actually ask

We track 1,831 coding questions asked at Amazon, almost all tagged with the concepts they test. Arrays lead by a wide margin, at about 20% of the concept weight, followed by strings, math, hash tables and dynamic programming. Next to the average company in our bank, Amazon leans a little more on database (SQL) questions, greedy problems, math, prefix sums, bit manipulation and trees, and a little less on two pointers, strings, stacks, hash tables and linked lists. The free Amazon profile shows the full mix.

By level, the Amazon-tagged questions in the bank include:

Junior: Two Sum, Valid Parentheses, Merge Two Sorted Lists, Roman to Integer.
Mid/Senior: Number of Islands, Rotting Oranges, Course Schedule, Merge Intervals, Meeting Rooms II, Top K Frequent Elements, K Closest Points to Origin, Reorganize String, Search Suggestions System.
Staff: Word Ladder, Trapping Rain Water, Merge k Sorted Lists, Minimum Window Substring, Sliding Window Maximum, Critical Connections in a Network.

The well-known ones share a handful of patterns: graph search on grids and dependencies, heaps for top-k and scheduling problems, intervals and sliding windows. More than half of the 1,831 sit at our Mid/Senior level. Beyond the algorithm, practice what Amazon's own prep page asks for: syntactically correct code with no pseudocode, checked for edge cases so that no bad input slips through.

Match the tool to the round

Part of the process	What Amazon says it involves	Use
Online assessment, SDE II	Two technical questions in 90 minutes, then 20 minutes of system design scenarios and an 8-minute work style survey related to the Leadership Principles	Timed Amazon-tagged problems; read the principles before the survey
Phone screen, SDE III	60 minutes, half on the Leadership Principles, half on coding and system design	A spoken mock interview plus your story bank
Loop coding interviews	Logical, maintainable code, problem solving, and data structures and algorithms, written in real time in an online editor	Amazon-tagged questions plus spoken mocks with follow-ups
System design	At least one systems design question in SDE II and SDE III loops	System design mocks at your level
Leadership Principles, every interview	Typically two or three behavioral questions from each interviewer; Amazon suggests the STAR method	A story bank mapped to the 16 principles; behavioral mocks
Bar Raiser	Someone from another team focused on hiring quality, who may be in your loop	Prepare every interview to the same standard

Quick comparison

Tool	What it gives you for Amazon	Price as billed
DevInterview.AI	Mock interviews set to Amazon and your level; 1,600+ Amazon-tagged coding questions; system design on retail problems	$19.99/mo, $49.99/qtr, $99.99/yr; first interview free
LeetCode Premium	Amazon-tagged questions with frequency; company timed tests	$35/mo (list $39), $159/yr
Amazon's own interview pages	The official description of each stage and all 16 Leadership Principles	Free
interviewing.io	Anonymous mock interviews with real Amazon interviewers	From $179; varies by subject and company
IGotAnOffer	Mock interviews with ex-Amazon interviewers as coaches	$50 per credit, 2 to 5 credits a session
Aced (formerly Exponent)	Amazon SDE and Leadership Principles guides; 5 free peer mocks a month	Free; Pro $79/mo, Expert $99/mo
Hello Interview	Amazon interview guides by level, SDE I to SDE III	$59 (1 month), $119 (1 year), $399 lifetime
NeetCode	Blind 75 and NeetCode 150 problem lists and a roadmap; Pro adds company-tagged problems	Pro $119/yr (list $199), $297 lifetime (list $599)

1. DevInterview.AI: the Amazon loop, on demand

DevInterview.AI tracks 1,831 coding questions asked at Amazon, and its interviews draw on the 1,600+ of them they support. Set an interview to Amazon and your level, and the voice interviewer gives you one of those questions, asks you to explain your approach, asks follow-ups and pushes back on your choices, while you code in an editor that runs your code in seven languages. The coding round runs 30 minutes, and every round ends with a scored report and a hire verdict. System design rounds run 45 minutes on a canvas, and for Amazon they lead with retail problems: a shopping cart at Junior level, order checkout, a product catalog and package tracking at Mid/Senior, and payment processing and recommendations at Staff. The behavioral round draws on five questions written for your level, on leadership, conflict, ownership, problem solving and collaboration, with follow-ups. The interviewer introduces itself as a hiring manager at Amazon, but the questions are not tagged to the 16 Leadership Principles, so map your stories to the principles yourself; our Leadership Principles guide shows how. Paid plans also include mean mode, where the interviewer roasts your answers while still running the real interview. Same questions, same scoring, just way more fun.

Pricing: the first interview is free, no card. Unlimited interviews are $19.99 a month, $49.99 a quarter, or $99.99 a year, and the yearly plan includes a free 30-minute 1:1 call with a senior big tech engineer.

Where it wins: it is the only option here that gives you unlimited full mock interviews built around Amazon, so you can run an Amazon interview every day for the last two weeks for less than one human session.

Where it falls short: our coding round is 30 minutes and an Amazon interview is 55 with behavioral questions mixed in, so pair a 30-minute coding mock with a 30-minute behavioral one to rehearse the full length. Our editor runs your code, and Amazon suggests getting comfortable coding without an IDE, so write it correctly before you press run. And the interviewer is an AI, not a Bar Raiser.

2. LeetCode Premium: the Amazon tag

Premium shows Amazon-tagged questions with a frequency for each and offers timed company tests, the closest thing here to the online assessment. It costs $35 a month (list price $39, shown crossed out) or $159 a year. It is a question bank, not an interviewer, though, and every Amazon interview after the assessment is spoken, so drill here and rehearse somewhere that talks.

3. Amazon's own interview pages: free and official

Amazon's own interview prep pages are the first thing to read. The SDE II page lays out the process: an online assessment, then a loop of four 55-minute interviews, three of them evaluating logical and maintainable code, problem solving, and data structures and algorithms, plus at least one systems design question. It asks for syntactically correct code with no pseudocode, written in real time in an online editor, says each interviewer will typically ask two or three behavioral questions, and suggests the STAR method. The SDE III page describes a 60-minute phone screen, split between the Leadership Principles and coding plus system design, then five 55-minute interviews. The Leadership Principles page lists all 16. None of it costs anything.

4. interviewing.io: real Amazon interviewers, anonymously

interviewing.io offers anonymous mock interviews with real Amazon interviewers. Sessions start at $179, and the price varies with the subject and whether you want an interviewer from a specific company, which for Amazon is the point. It issues a full refund if you are unhappy with a session. It also sells coaching packages of 3, 5 or 10 sessions with an experienced interviewer from Amazon, Google or Meta, and does not publish their price. One or two sessions in the final week, after you have built volume, is the right dose.

5. IGotAnOffer: ex-Amazon interviewers as coaches

IGotAnOffer's Amazon mock interviews are run by ex-Amazon interviewers, and you pick a coach who is a calibrated interviewer for the company and role. A credit is $50 and coaches charge 2 to 5 credits a session, a 45-minute mock plus 15 minutes of feedback, so roughly $100 to $250. Best for inside context on the process and a read on your level, less so for volume.

6. Aced (formerly Exponent): guides, Leadership Principles, peer mocks

Aced (formerly Exponent) has an Amazon software development engineer interview guide and guides to Amazon's Leadership Principles and behavioral questions, plus a free account with 5 peer mock interviews a month with another candidate. Pro is $79 a month, or $12 a month billed yearly, and Expert ($99 a month, or $20 a month billed yearly) adds AI mock interviews: audio sessions of 10 to 20 minutes on behavioral and product management questions, with no coding.

7. Hello Interview: Amazon guides by level

Hello Interview publishes Amazon interview guides for L4 (SDE I), L5 (SDE II) and L6 (SDE III). Premium is $59 for 1 month, $119 for 1 year, or $399 lifetime, with a sale running when we checked, and the 1-month and 1-year passes do not auto-renew. It no longer runs mock interviews; those ended on May 31, 2026.

8. NeetCode: the patterns first

If you are more than a month out, learn the patterns first, with NeetCode's Blind 75 and NeetCode 150 lists and its roadmap. Amazon's best-known questions come down to a handful of patterns: graph search, heaps, intervals and sliding windows. Pro, which lists company-tagged problems among its features, is $119 a year (list price $199, shown crossed out) or $297 lifetime (list price $599, shown crossed out).

What to skip

Live-interview copilots don't belong in your prep. Final Round AI's Interview CoPilot, in its own words, "listens to your live interview and delivers real-time answers in a private window only you can see". That is a tool for the real interview, not practice for it. Final Round AI's practice interviews need a paid plan: $150 a month, $250 a quarter or $300 a year (shown as $25 a month). Behavioral prep that never connects to the principles also wastes time, because Amazon asks how you have demonstrated them. Whatever questions you practice with, ours included, map each story to two or three principles.

Which should you try first?

Your Amazon loop is in the next month: start with DevInterview.AI's free interview set to Amazon and your level, then drill LeetCode's Amazon tag between sessions. Every rating we have ever received is public on our reviews page.
Your online assessment comes first: LeetCode's Amazon tag in timed sets, and read Amazon's description of your assessment on its interview prep page before you start.
Final week: rehearse your Leadership Principles stories out loud, run two behavioral mocks, and if budget allows, one session with an Amazon interviewer through interviewing.io or IGotAnOffer.
You want the whole plan, not one tool: our 8-week study plan gives one tool per step: NeetCode for patterns, Hello Interview for system design, DevInterview.AI to practice out loud, and an optional interviewing.io session.

If your Amazon loop is in two weeks

Days	Do
1 to 3	Read Amazon's interview prep page for your level and the Leadership Principles page. Write a bank of 12 to 15 stories in STAR form, each usable for two or three principles, with a number in every result.
4 to 9	One full mock interview a day, set to Amazon and your level, alternating coding and behavioral. State the approach and its complexity before typing. Redo any problem where a follow-up broke you.
10 and 11	SDE II and up: one system design mock each day. Everyone: retell your three weakest stories until each has a specific action and a measured result.
12	A coding mock followed straight away by a behavioral one, to rehearse a full 55-minute Amazon interview, or one human session if you have budget.
13	One light mock. Re-read your stories and the edge cases your mocks caught.
14	Rest. Nothing new.

For the stage-by-stage breakdown, see our Amazon SDE interview process guide and the Amazon online assessment guide.

How we evaluated

We checked each vendor's own site between October 8 and October 13, 2026 and recorded only what it states. The process details come from Amazon's own interview prep pages, and the question mix comes from our own bank of reported Amazon questions. We build DevInterview.AI, so where a free official page or someone who has run Amazon interviews is the better choice, we said so.

FAQ

What coding questions does Amazon ask in interviews?

In DevInterview.AI's bank of 1,831 coding questions asked at Amazon, arrays account for about 20% of the concepts these questions test, followed by strings, math, hash tables and dynamic programming, and the best-known ones lean on graph search, heaps, intervals and sliding windows. Examples at DevInterview.AI's Mid/Senior level include Number of Islands, Rotting Oranges, Course Schedule, Merge Intervals and Top K Frequent Elements, and at Staff level Word Ladder, Trapping Rain Water and Merge k Sorted Lists. Amazon asks for syntactically correct code with no pseudocode, written live in an online editor, and tells candidates to check for edge cases.

How do I prepare for Amazon's Leadership Principles questions?

Write a bank of 12 to 15 specific stories from your own work in STAR form, the structure Amazon itself suggests, make each usable for two or three of Amazon's 16 Leadership Principles, and put a measured result in every one. Then practice telling them out loud to someone who asks follow-ups, because each Amazon interviewer typically asks two or three behavioral questions.

What is the best AI tool to prepare for an Amazon interview?

DevInterview.AI runs full mock interviews set to Amazon and your level, with a voice interviewer, 1,600+ Amazon-tagged coding questions, system design on retail problems and a scored report, unlimited for $19.99 a month with the first interview free. Pair it with LeetCode Premium's Amazon tag for the question list and Amazon's own Leadership Principles page for the stories.

What is the Amazon Bar Raiser?

A Bar Raiser is, in Amazon's own words, "someone from another team focused on hiring quality". Amazon says the people you meet in your loop may include a Bar Raiser alongside managers, teammates and stakeholders, so prepare every interview to the same standard.