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Amazon ML Interview Questions
58 real machine-learning interview questions reported from Amazon.
Practice on the problems board →Morse Code Decoder
Coding & Leetcode-style QuestionsAI Assistant Repo Bug-Fix (OA Part 2)
Coding & Leetcode-style QuestionsSort Error Codes by Ascending Frequency
Coding & Leetcode-style QuestionsMost-Frequent Unplayed Song Streaming Player
Coding & Leetcode-style QuestionsMinesweeper Game Design (OOD)
System Design for MLCredit Card System Design (OOD)
System Design for MLDistributed LLM Training Data Pipeline
System Design for MLDesign a File-Sharing Permission Control System
System Design for MLDesign a Pizza Ordering and Fulfillment System (OOD)
System Design for MLDesign an In-Process Pub-Sub Messaging Broker (OOD)
System Design for MLBehavioral: GenAI Usage, Failure, and Tradeoffs
BehavioralEvent Filter & Queue Routing Service
Coding & Leetcode-style QuestionsMinimum Cost Over 0/1/! Subsequence Assignments
Coding & Leetcode-style QuestionsLexicographically Minimal String via Remove-and-Reinsert Increment
Coding & Leetcode-style QuestionsMorse Code Encoder/Decoder with Word-Break
Coding & Leetcode-style QuestionsDesign a Lab-Wide Experiment Platform for Embodied AI
System Design for MLScene Graph Validator — Tree-Shaped JSON Validation Framework
Coding & Leetcode-style Questionspaper reading deep dive - amazon applied scientist interview
Research & Paper Understanding# Amazon OA - Array Generator Service
Coding & Leetcode-style QuestionsCount Idle Robots
Coding & Leetcode-style Questions# Amazon OA - AI Assistant Repo Bug-Fix
LLMs & Prompt EngineeringCompare PPO, DPO, and GRPO
Reinforcement LearningRate Limiter Design (OOD)
System Design for MLBehavioral: Amazon Leadership Principles Standard Set
BehavioralDesign Robot Human-Avoidance (Open-Ended)
System Design for MLPaper Read Round: Deep Critique and Production Translation
Research & Paper UnderstandingApplied Scientist: Solving an Ambiguous Business Problem
System Design for MLRLHF: PPO vs GRPO vs GSPO
Reinforcement LearningCore Dump Collection System Design
System Design for MLML System Design: Search, Ranking, Experimentation
System Design for MLDrone Delivery on a Hub Ring — Minimum Travel
Coding & Leetcode-style QuestionsService Shutdown via Topological Propagation
Coding & Leetcode-style QuestionsLRU Cache (LC 146)
Coding & Leetcode-style QuestionsMaximum Concurrent Processes from Intervals
Coding & Leetcode-style QuestionsClassify Tree Node Relationship: Sibling, Cousin, or Other
Coding & Leetcode-style QuestionsClone Linked List with Random and Next Pointers
Coding & Leetcode-style QuestionsPairwise Line Segment Intersection Points
Coding & Leetcode-style QuestionsBasic Calculator with Postfix Notation
Coding & Leetcode-style QuestionsClosest Version Date to a Target
Coding & Leetcode-style QuestionsFind Conflicting Events
Coding & Leetcode-style QuestionsOrg-Chart Salary Aggregation
Coding & Leetcode-style QuestionsMax Money from K Consecutive Bags
Coding & Leetcode-style QuestionsCircular Array Multi-Query Distance Accumulation
Coding & Leetcode-style QuestionsLongest Consecutive Sequence with Adjacent Gap At Most K
Coding & Leetcode-style QuestionsBucket Batching DP to Minimize GPU Padding
Coding & Leetcode-style QuestionsLexicographically Largest Sequence via State Flips
Coding & Leetcode-style QuestionsGet Nested Object Value by Path String
Coding & Leetcode-style QuestionsRecursive JSON Schema Validator
Coding & Leetcode-style QuestionsMinimum Range-Add Ops to Make Array Non-Decreasing
Coding & Leetcode-style QuestionsSmallest Time-Diff Pair Per User (Orders vs Ads)
Coding & Leetcode-style QuestionsDetect Abusive Books in a Reading Event Stream
Coding & Leetcode-style QuestionsMerge Two Sorted Arrays In-Place
Coding & Leetcode-style QuestionsLLM conceptual questions (Not tied with a particular company)
Research & Paper UnderstandingVM Inventory Rental Revenue — Heap Simulation
Coding & Leetcode-style QuestionsMax Equal-Frequency Block Split Per Prefix
Coding & Leetcode-style QuestionsEarliest One-Time Visiting User
Coding & Leetcode-style QuestionsMinimum Replacements to Make Array Contiguous
Coding & Leetcode-style QuestionsLog Aggregation and Group-By
Coding & Leetcode-style Questions