Amazon Data Manipulation (SQL/Python) Interview Questions
Practice 629 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.

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Design a scalable image-based social network
Design the backend system for a social networking website primarily focused on sharing images (similar in spirit to an image-centric social app). User...
Design a basic credit card system
Design an object-oriented credit card system for a retail bank. Focus on clean class design rather than distributed infrastructure. At a minimum, the ...
Check if adding edge creates cycle in digraph
You work with a system that stores items and directed relationships between them (for example, item A points to item B). The relationships form a dire...
Handle overwhelming recruiter prep and expectations
Behavioral Prompt: Handling Overwhelming Prep Under Short Notice Context You're preparing for an early-round HR screen for a Software Engineer role fo...
Discuss open-source contributions and impact
Behavioral Prompt: Open-Source Contribution Walkthrough Context: Technical screen for a Software Engineer role. Provide a concise, structured walkthro...
Compute product excluding index without division
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Describe a recent innovation you delivered
Behavioral question: “Tell me about a recent innovation you delivered.” Include: - What problem/opportunity you identified - What was novel about your...
Answer Leadership and Collaboration Prompts
Prepare strong answers for the following behavioral prompts. Interviewers will likely ask follow-up questions about the customer impact, problem, acti...
Explain ML evaluation, sequence models, and optimizers
Scenario An interviewer is deep-diving into an ML project you built (you can assume it is a supervised model unless specified otherwise). They want yo...
Implement SGD for linear regression and derive gradients
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Find concatenated words in list
Question LeetCode 472. Concatenated Words – Given an array of strings words, return all words that are concatenations of at least two shorter words al...
Describe Your Professional Journey and Leadership Experiences
Describe Your Professional Journey and Leadership Experiences Behavioral & Leadership Interview Prompt (Data Scientist — Technical Phone Screen) Scena...
Generate primes up to n efficiently
Implement a function that returns all prime numbers in the inclusive range 1..n. Requirements: handle n up to 10^7 efficiently (time and memory); retu...
Demonstrate problem-solving under resistance
Behavioral: End-to-End Problem Solving with Resistance (STAR) You are interviewing for a Data Scientist role. Provide a STAR-formatted response descri...
Estimate live sports impact on subscriptions
Estimate the Causal Impact of Live Sports on Prime Subscriptions and Engagement Context Amazon is considering adding live broadcasts of selected sport...
Apply Double ML with text-address features
Estimate the ATE of a First Reminder on CSAT via Double Machine Learning (DML) Context You have observational data on customer satisfaction (CSAT) sur...
Implement list overlap and dense-ranked word frequencies
Part A — Multiset overlap count Implement count_overlap(a: List[int], b: List[int]) -> int that returns the size of the multiset intersection of a and...
List hyperparameter tuning methods
Describe common methods for hyperparameter tuning in machine learning. For each method, explain: - How it works conceptually. - Its advantages and dis...
Explain vanishing gradients and activations
Explain the vanishing gradient problem in deep neural networks. In your answer: - Describe how backpropagation works at a high level and why gradients...
Amazon Behavioral & Leadership Scenarios
Amazon Behavioral and Leadership Scenarios for Product Managers Prepare concise, structured answers for an Amazon Product Manager onsite covering beha...