Amazon Software Engineer Interview Questions

Amazon Software Engineer interview questions typically assess both algorithmic craftsmanship and fit with Amazon’s culture. What’s distinctive is the dual emphasis: expect intense coding and problem-solving rounds (data structures, algorithms, complexity and correct edge-case handling), a system-design evaluation for more senior roles, and behavioral deep-dives tied to Amazon’s Leadership Principles. The interview loop often includes an online assessment or phone screen, followed by a multi-interviewer loop that features a Bar Raiser whose role is to ensure high hiring standards. Clear communication, tradeoff reasoning, and testable, clean code are repeatedly evaluated. For interview preparation, focus on three threads: timed coding practice on medium-to-hard problems with careful explanation of complexity and edge cases; concise STAR-format behavioral stories that map directly to Leadership Principles and show impact; and system-design sketches for senior levels that justify choices around scalability, availability, and cost. Run mock interviews to practice speaking clearly, articulate tradeoffs, and rehearse writing and testing code under time pressure. Recruiters will guide scheduling, but sustained, focused practice gives the best chance to demonstrate both technical depth and cultural fit.

362 Questions 1 Company08.11.2026
Showing 20 results
Role
Amazon logo
Amazon
Medium
Software EngineerSenior+

Determine Whether a Binary Tree Is a Valid BST

Determine Whether a Binary Tree Is a Valid BST Problem Given a binary tree, determine whether the entire tree satisfies the strict binary-search-tree ...

Coding & Algorithms
0
0
4 people solved
Apr 15, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Build the Largest Available Sequence

This question evaluates algorithmic problem-solving skills in state simulation, constrained selection, and lexicographic sequence maximization, measur...

Coding & Algorithms
5
0
78 people solved
Apr 14, 2026
Amazon logo
Amazon
Hard
Software Engineer

Answer Dive Deep and Ownership in LP interview

Behavioral (Amazon LP): Dive Deep & Ownership The interviewer will probe your prior work and may connect follow-ups to the technical discussion. Promp...

Behavioral & Leadership
8
0
106 people solved
Jan 22, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Design a cloud database write path and recovery

This question evaluates expertise in designing transactional write paths and crash recovery for cloud-native relational databases that separate comput...

System Design
19
0
169 people solved
Jan 22, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Serialize and deserialize a binary tree

This question evaluates competency in designing robust serialization formats and manipulating binary tree data structures, including preservation of s...

Coding & Algorithms
8
0
72 people solved
Jan 22, 2026
Amazon logo
Amazon
Easy
Software EngineerIntern

Describe a failure and what you learned

Behavioral Describe a time you failed. - What was the situation and your goal? - What went wrong (your role/responsibility)? - What actions did you ta...

Behavioral & Leadership
7
0
67 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern Locked

Return a valid task order

This question evaluates understanding of graph algorithms and dependency resolution, testing the ability to produce a valid ordering of tasks and reco...

Coding & Algorithms
3
0
39 people solved
Jan 21, 2026
Amazon logo
Amazon
Medium
Software Engineer

Implement robust debounce and throttle in JavaScript

Implement debounce(fn, wait, options) and throttle(fn, wait, options) in JavaScript. Support leading/trailing invocation toggles, maxWait for throttle...

Coding & Algorithms
5
0
43 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer

Discuss key behavioral experiences

Behavioral Interview (Onsite) — Software Engineer You are preparing for an onsite behavioral and leadership interview. Answer the following prompts us...

Behavioral & Leadership
7
0
69 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Design a large-scale temperature sensor system

This question evaluates system design and distributed-systems competencies including large-scale data ingestion, time-series storage, real-time visual...

System Design
9
0
89 people solved
Jan 6, 2026
Amazon logo
Amazon
Medium
Software Engineer

Find the K-th Smallest Value in Two Sorted Arrays

Find the K-th Smallest Value in Two Sorted Arrays Given two nondecreasing integer arrays and a one-based integer k, return the k-th smallest value in ...

Coding & Algorithms
0
0
1 people solved
Mar 26, 2026
Amazon logo
Amazon
Medium
Software Engineer

Solve string partition and equal-sum package problems

Solve string partition and equal-sum package problems 1) Given a string itemCategories (lowercase English letters) and an integer k (0 ≤ k ≤ 26), coun...

Coding & Algorithms
2
0
44 people solved
Aug 1, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design pickup point planning for ride-hailing

Design an algorithm and high-level system for recommending a pickup point in a ride-hailing app. A passenger requests a ride from an approximate city ...

System Design
8
0
68 people solved
May 28, 2025
Amazon logo
Amazon
Medium
Software Engineer

Handle deadlines and misses

Handle deadlines and misses This is a two-part behavioral question. Answer both parts: 1. Tight deadline. Describe a time you faced a tight deadline. ...

Behavioral & Leadership
7
0
53 people solved
Jul 15, 2025
Amazon logo
Amazon
Medium
Software Engineer

Maintain real-time top-K products from events

Design a data structure/class that ingests a stream of product events and returns the current top‑K products at any time. Events include {timestamp, p...

Coding & Algorithms
3
1
56 people solved
Sep 6, 2025
Amazon logo
Amazon
Easy
Software EngineerIntern

Clarify internship availability and conversion

Software Engineering Internship Availability and Conversion Context: During a technical screen for a Software Engineer internship, the interviewer nee...

Behavioral & Leadership
10
0
74 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software Engineer

Determine string buildability from dictionary

Given a non-empty string s and a list of non-empty words dict, determine whether s can be formed by concatenating words from dict with unlimited reuse...

Coding & Algorithms
3
0
42 people solved
Sep 6, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design a memory usage switcher with thresholds

System Design: In-Process Memory Usage Switcher Context You are designing an in-process memory guardrail for a backend service. The component monitors...

System Design
7
0
55 people solved
Sep 6, 2025
Amazon logo
Amazon
Easy
Software EngineerNew Grad

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...

Coding & Algorithms
1
0
16 people solved
Nov 22, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Design an Online Minesweeper Platform

This question evaluates competency in designing scalable, low-latency, real-time stateful systems, covering data modeling, API design, persistence, co...

System Design
4
0
45 people solved
Nov 17, 2025
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Frequently Asked Questions

How difficult are Amazon Software Engineer interview questions?
The difficulty of Amazon Software Engineer interview questions varies by level and team but is generally rigorous. For entry-level SDE roles expect medium-to-hard algorithm and data-structure problems under time pressure, while more senior roles include complex system-design and architecture discussions that probe tradeoffs and scalability. Interviewers evaluate not just correct solutions but clarity of thought, communication, and how you justify design choices; behavioral evaluation against Amazon’s Leadership Principles also influences outcomes. Preparation that improves problem selection, complexity analysis, and spoken explanation will materially raise your chances of success.
What is the typical interview process for an Amazon Software Engineer, and where do coding, design, and behavioral questions appear?
Amazon’s Software Engineer hiring loop commonly begins with a recruiter screen, may include an online coding assessment, followed by one or more technical phone screens and an onsite (or virtual) interview loop of multiple interviews. Coding questions typically appear in the online assessment and technical phone/on-site algorithm rounds, design questions appear in object-oriented design or system-design interviews (more for senior levels), and behavioral questions tied to Amazon’s Leadership Principles are asked in nearly every loop, often including a Bar Raiser who evaluates long-term fit. Timing and format can vary by team.
How much time should I plan for interview preparation for Amazon Software Engineer roles?
Preparation time depends on your baseline skills and the role level, but a focused plan typically spans four to eight weeks for most candidates. Beginners should allocate time to master fundamentals in data structures, algorithms, and Big-O analysis while practicing timed coding problems and mock interviews; mid-level candidates should add system-design and architecture practice; senior candidates need deeper design, distributed systems, and leadership-story preparation. Regular timed practice, review of common patterns, and rehearsing STAR-format behavioral examples will improve performance more than ad-hoc study. Use the recruiter’s guidance to tailor your timeline.
What key subtopics should I focus on for Amazon Software Engineer interview questions?
Focus on core computer-science fundamentals first: arrays, strings, linked lists, trees, graphs, heaps, hash tables, and common algorithms for searching, sorting, traversals, and dynamic programming, with comfortable Big-O reasoning. For mid-to-senior roles add object-oriented design, system design, databases, networking basics, and distributed-systems tradeoffs including caching, consistency, and scalability. Don’t neglect coding hygiene, testing, and clear communication. Behavioral preparation should map examples to Amazon’s Leadership Principles, demonstrating ownership, bias for action, and customer obsession. Prioritize depth in areas most relevant to the role you applied for.
What are standout tips and common pitfalls when preparing for Amazon Software Engineer interviews?
Standout tips include clearly communicating your approach before coding, writing correct and readable code with edge-case checks, iterating from a simple solution to optimizations, and tying behavioral stories to concrete outcomes aligned with Amazon’s Leadership Principles. Use mock interviews to practice pacing and explanation. Common pitfalls are diving into code without outlining the plan, ignoring complexity tradeoffs, failing to test examples or handle edge cases, and giving vague behavioral answers. Be honest about unknowns and show how you would learn or validate assumptions; recruiters value candid problem-solving processes.

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