For Amazon software-development roles, prioritise coding and technical problem solving. Practise data structures, algorithm selection and complexity, then explain and test your solutions. The role-specific online assessment guidance is a better starting point than a generic Amazon aptitude paper.
This 2027 preparation page focuses on university SDE online assessments. Amazon’s published guidance distinguishes full-time and internship assessments, and says configurations can vary by country. Follow your invitation for the actual format; other Amazon roles may have different assessments.
| # | Section | Questions | Time |
|---|---|---|---|
| 01 | SDE Coding: suggested study topics | — | — |
| 02 | Workstyles and simulation, as assigned | — | — |
Amazon’s university SDE online-assessment guide distinguishes full-time roles and internships and says configurations can vary by country. It describes coding and workstyles, with a work simulation in the full-time guide. Check your invitation for the applicable structure and duration. There is no single generic Amazon aptitude paper covering every role.
Work through arrays, strings, hash tables, stacks, queues, trees and graphs. Explain the time and space costs of your solution. For each problem, test ordinary input, empty input, repeated values and extreme sizes. AISEA exercises support concept review; write and run complete programmes in your chosen language too.
Read Amazon’s official Leadership Principles and the assessment guidance for your role. For work scenarios, reason from the facts and explain your tradeoffs. There is no general aptitude score on AISEA that represents an Amazon hiring decision. Use the official SDE practice link and any sample in your invitation to learn the interface.
Use these study topics with your current invitation. Where the provider has not published a detailed chapter list, they are suggested preparation areas.
Chips with arrow icons link directly to interactive AISEA practice modules. Unlinked chips represent broader official syllabus areas covered in external or future curriculum updates.
Original AISEA examples for concept practice. These are not official exam questions, previous-year papers or a full mock test.
How can you find two values whose sum equals a target in expected linear time?
Scan once while keeping previously seen values in a hash set.
For each value x, look for target − x before adding x. Expected constant-time lookups give expected O(n) time and O(n) extra space; checking before insertion avoids reusing the same element.
In a queue, values 4, 7 and 9 are enqueued in that order. What do the next two dequeue operations return?
4, then 7.
A queue is first-in, first-out. Enqueuing at the rear and dequeuing at the front preserves arrival order.
What is the time complexity of visiting every vertex and edge once using adjacency lists?
O(V + E)
The traversal processes each vertex and examines each adjacency-list entry. For an undirected graph there are two entries per edge, which does not change the asymptotic bound.
Build accuracy with explained answers in learning mode, then use timed mode for practice. AISEA currently has no complete Amazon SDE mock test.
Choose an exerciseReview arrays, stacks, queues and trees.
Open practice Topic exercisePractise searching, sorting and complexity.
Open practice Topic exerciseCheck control flow, types and function behaviour.
Open practice Topic exerciseReview Python language behaviour before writing solutions.
Open practiceAmazon publishes SDE preparation topics and assessment guidance, rather than one chapter-by-chapter 2027 paper for all applicants. Use the linked role-specific pages, then practise data structures, algorithms and coding in the language you will use.
Amazon’s public guide describes them separately and advises checking the invitation for the applicable structure. Do not infer your rounds or timing from another role or country.
The linked exercises assess programming and algorithm concepts through questions with explanations. AISEA does not provide a coding judge or an Amazon work-simulation evaluator. Use your own coding environment and the official assessment practice resource for hands-on preparation.
This page contains original concept questions and focused exercises. They are not Amazon past papers, and there is no complete Amazon SDE assessment simulation on AISEA currently.
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Guide reviewed 2026-10-13. Follow the provider’s current notification and your test invitation for applicable rules.