Amazon Interview Questions
Practice 631 real Amazon interview questions for 2026. Covers all top categories — Coding & Algorithms, Behavioral & Leadership, Machine Learning, Data Manipulation (SQL/Python), and System Design — across Software Engineer, Data Scientist, Machine Learning Engineer, Product Manager, and Business Intelligence Engineer roles. Real Amazon interview questions from actual interviews with detailed solutions; use this collection for interview preparation that emphasizes shipping at scale, measurable impact, and the company’s Leadership Principles. Expect coding-heavy assessments for Software Engineer candidates: frequent tree and dynamic-programming problems, two-array optimization patterns, nested object/path lookups, and system-design prompts that mirror product flows (online Minesweeper, pizza-ordering, credit-card and shipping/cost systems), plus leadership and collaboration behavioral prompts. Data Scientist rounds concentrate on experimentation and metrics (A/B design, hand p-values, D7 retention SQL), RAG/recommender evaluation, and product-impact analyses. ML Engineer questions focus on production model design, LLM/agent concepts, reliability (cold start, training stability, online vs offline gaps), and large-scale detection pipelines. PM interviews stress customer-obsessed stories, ambiguity, Alexa product launches, and domain-specific data pipelines. Prepare with timed coding practice, end-to-end experiment writeups, STAR stories framed to Leadership Principles, and mock system-design sessions.

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

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"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Demonstrate Bias for Action
Demonstrate Bias for Action Behavioral Prompt: Acting With Incomplete Data (Bias for Action) Describe a time you moved a project forward despite havin...
Merge overlapping intervals
Merge overlapping intervals Given a list of half-open numeric intervals [start, end), merge all overlapping or contiguous intervals and return a list ...
Demonstrate Leadership and Ownership in Energy Analytics Role
Behavioral Interview: Ownership, Resume Walkthrough, and Energy Analytics Motivation You are interviewing for a Data Scientist role on an Amazon-style...
Assess Candidate's Alignment with Amazon Leadership Principles
Behavioral Interview: Amazon Leadership Principles for Data Scientists You are interviewing for a Data Scientist role where customer impact, ownership...
Handle Missing Values and Choose ML Algorithms Wisely
ML Interview: Core Modeling Concepts You are in a technical phone screen for a Data Scientist role. Assume primarily tabular datasets and address both...
Solve Two OA Algorithm Problems
The post describes two separate coding questions from an online assessment: 1. Greedy deletion by minimum value Given an integer array nums, repeate...
Solve three coding tasks: binary search, tree path, subarray
Solve three coding tasks: binary search, tree path, subarray Solve the following coding tasks: 1) In a sorted array, every value appears exactly twice...
Debug online worse than offline model performance
Production ML: online performance worse than offline You launch an ML model. Offline evaluation (validation/test) looked good, but after deployment th...
Find minimum total range-increment to sort
You are given an integer array power[0..n-1] representing computational power of n servers. You may perform the following operation any number of time...
Design a streaming median structure
Design a streaming median structure Design a data structure for a number stream that supports: add(num: int) in O(log n) time and median() -> float in...
Product Design Case Mix
Product Design Case Mix You will be assigned one of three product design scenarios. For the assigned scenario, outline the product vision, target user...
Design Thread-Safe Tagging and Bookstore Systems
Design Thread-Safe Tagging and Bookstore Systems System Design and OO Design (Onsite) Part 1: Thread-Safe Document–Tag Design Design object-oriented c...
Demonstrate Amazon leadership principles
Demonstrate Amazon leadership principles Behavioral & Leadership Interview (Software Engineer — Onsite) Provide STAR-structured answers (Situation, Ta...
Solve Rotting Oranges and Bus Walk Reachability
Question LeetCode 994. Rotting Oranges. 2) Given start and end grid coordinates, an integer k (maximum walking distance), and a bidirectional graph of...
Mitigate Data Mistakes and Improve Team Efficiency
Mitigate Data Mistakes and Improve Team Efficiency Behavioral Questions (STAR Format) Context: You are interviewing for a data role at Amazon, where l...
Diagnose Bias–Variance Trade-off in Supervised Learning
Diagnose Bias–Variance Trade-off in Supervised Learning Supervised Learning Review (Customer-Facing Ranking Context) You are designing and evaluating ...
Explain Resolving a Complex Technical Challenge Successfully
Explain Resolving a Complex Technical Challenge Successfully Behavioral: Complex Technical Problem You Solved (Data Scientist – Onsite) Prompt Describ...
Design an Automated Home-Price Valuation Model
Design an Automated Home-Price Valuation Model Scenario You are building an automated house-price valuation service for a real-estate platform. Questi...
Find daily first-order merchants with SQL
Given the table below, write a single SQL query using window functions to: A) For each calendar date (UTC), return all merchant_id(s) whose order is t...
Compute CIs, power, and multiple testing
A/B Testing Stats: Confidence Intervals, Power, Multiple Testing, and Clustering Context: You are planning an A/B experiment on a Bernoulli outcome (c...