Amazon OA Guide
Amazon OA Questions & Format Guide
Amazon's OA is typically two coding problems in 90 minutes, weighted toward Dynamic Programming, Graphs, Trees, Greedy, and Array questions, followed by a work-simulation module and a set of Amazon Leadership Principles behavioral questions. The coding section is timed per-problem in practice, but the overall clock keeps running across both.
Matches the one-click Amazon OA preset in Ediky's desktop app (2 problems, 90 minutes), weighted toward these five topics.
What Amazon actually tests
Amazon's SDE OA has stayed structurally consistent for several cycles: two coding problems (usually one easier, one harder) inside a 90 minute window, immediately followed by a Work Style Assessment and a set of situational-judgment questions built around Amazon's 16 Leadership Principles.
The coding problems lean hard on graph traversal, dynamic programming, and greedy simulation dressed up as "warehouse robot" or "delivery route" style word problems — the algorithm underneath is usually a well-known pattern (shortest path, interval scheduling, knapsack-style DP) wrapped in Amazon-flavored narrative.
How to prepare with Ediky
The OA Simulator in Ediky's desktop app has a one-click Amazon preset that pulls 2 problems in the same 90 minute format, weighted toward the same topic mix Amazon actually uses. It's the fastest way to rehearse the real time pressure before it counts.
For untimed, topic-by-topic practice first, Ediky's DSA problem bank has 199 questions tagged "Amazon" across coding, MCQ theory, and aptitude sections — filter by company on the problems page and work through them at your own pace before switching to timed mode.
Leadership Principles round
The behavioral component isn't a formality — Amazon screens on it as heavily as the coding section. Prepare 2-3 concrete STAR-format stories (Situation, Task, Action, Result) per principle you're weakest on, especially Ownership, Bias for Action, and Deliver Results, since those come up most often in the OA's situational-judgment questions.
Rehearse the Amazon OA before it counts
Run the one-click Amazon preset in the Ediky desktop app: 2 problems, 90 minutes, the same topic weighting Amazon actually uses.
Get the desktop app