Amazon Coding & Algorithms Interview Questions
Practice 695 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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Behavioral Problem-Solving Scenarios
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Describe times exceeding and missing expectations
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Discuss key behavioral experiences
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Find longest common contiguous subarray
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Check path in N-ary tree
Given the root of an N-ary tree and a sequence of integers path[0..k-1], determine whether there exists a path starting at the root whose node values ...
Design a memory usage switcher with thresholds
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Implement Interview Coding Problems
Solve the following independent coding tasks from a new-grad software engineering interview. 1. Implement a hash map from scratch. - Support integer k...
Find recommended friend pairs by shared listening
Problem (SQL) You work on a music app and want to recommend new friend connections based on listening similarity. Tables Assume the following schemas:...
Design logo infringement detection system
This question evaluates a candidate's competency in ML system design for visual search, covering image representation and embeddings, metric learning,...
Answer Leadership and Collaboration Prompts
This question evaluates leadership, collaboration, interpersonal communication, conflict resolution, adaptability, and self-reflection competencies wi...
Solve Shipping and Bundle-Cost Problems
This question evaluates algorithmic reasoning for scheduling and capacity planning (minimum daily shipping capacity) and combinatorial optimization wi...
Share examples of impact and simplicity
Share examples of impact and simplicity Behavioral prompt: Exceeding customer expectations and simplifying complex problems Context You are in a softw...
Assess cooldown and plan interview strategy
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