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swe Interview Questions
108 machine-learning interview questions on swe.
Practice on the problems board →Days Between Two Dates
Coding & Leetcode-style QuestionsHR / Behavioral Phone Screen
BehavioralLow-Latency Trading System Design
System Design for MLDesign Circular Queue (Ring Buffer)
Coding & Leetcode-style QuestionsDays Between Two Dates
Coding & Leetcode-style QuestionsDesign Circular Queue (Ring Buffer)
Coding & Leetcode-style QuestionsLow-Latency Trading System Design
System Design for MLHR / Behavioral Phone Screen
BehavioralProportional Allocation Strategy Backtest
Coding & Leetcode-style QuestionsBuild Binary Tree from Edges / S-Expression
Coding & Leetcode-style QuestionsNews Aggregation / Subscription System
Coding & Leetcode-style QuestionsHot Air Balloon Festival Simulation
Coding & Leetcode-style QuestionsThread-Safe Buy/Sell Without Overselling
Coding & Leetcode-style QuestionsOptiCargo — Cargo-to-Flight Scheduling
Coding & Leetcode-style QuestionsDesign a Queue - Implementation Trade-offs
Coding & Leetcode-style QuestionsCurrency Arbitrage Detection
Coding & Leetcode-style QuestionsSatellite Message Propagation
Coding & Leetcode-style QuestionsZap-N Reaction & Memory Mini-Games
ML Fundamentals & AlgorithmsProgramming & Computer-System Knowledge Quiz
Coding & Leetcode-style QuestionsComputation / Dependency Graph Validation and Pruning
Coding & Leetcode-style QuestionsC++ Project Debugging with AI Tools
Coding & Leetcode-style QuestionsSystems Utility Coding: Temperature Spike, Logs, Brackets
Coding & Leetcode-style QuestionsString Encoding / Decoding Variants
Coding & Leetcode-style Questions2-D Matrix Transpose with Memory-Layout Discussion
Coding & Leetcode-style QuestionsDisk Space Manager / KV Store with setAll
Coding & Leetcode-style QuestionsML Coding: 2-D Convolution, Decaying Attention, Training Loop
Coding & Leetcode-style QuestionsReal-Time Fraud Detection System
System Design for MLRate Limiter Algorithm Design
System Design for MLGPU and Inference Systems Fundamentals
System Design for MLTwitter Insight Platform (CodeSignal Take-Home)
MLOps & DeploymentResumable Iterator with Save / Restore State
Coding & Leetcode-style QuestionsFlatten / Unflatten Nested Python Structure
Coding & Leetcode-style QuestionsCheckers Game — Backend System Design
Coding & Leetcode-style QuestionsTwitter Spaces — Aggregate Active Hours
Coding & Leetcode-style QuestionsMaximum Distinct Integers After ±k Offset
Coding & Leetcode-style QuestionsMultithreaded BankAccount Race-Condition Bug Hunt
Coding & Leetcode-style QuestionsIn-Memory Database — Levels 1–4 (TTL + Backup/Restore)
Coding & Leetcode-style QuestionsNotification System — Push to Followers on New Post
System Design for MLRate Limiter — Inbound + Outbound
System Design for MLProcess vs Thread (Verbal CS Fundamentals)
Coding & Leetcode-style QuestionsSWE / QSE OA — IPO Share Allocation
Coding & Leetcode-style QuestionsSWE / QSE OA — Sewer Tree Partition
Coding & Leetcode-style QuestionsHuffman-Style Binary Encode / Decode
Coding & Leetcode-style QuestionsMaximum Independent Set on a Tree
Coding & Leetcode-style QuestionsOrder Matching Engine
Coding & Leetcode-style QuestionsIn-Memory SQL-Like Database
Coding & Leetcode-style QuestionsHashMap from Scratch
Coding & Leetcode-style QuestionsGenAI Quant SWE Manager Deep Dive
LLMs & Prompt EngineeringResource Allocation / Balancing Teams Equal Sum
Coding & Leetcode-style QuestionsTwo-Intern Task Assignment Max Reward
Coding & Leetcode-style QuestionsMinimum-Cost Array Reduction
Coding & Leetcode-style QuestionsMaximum K-Star Sum
Coding & Leetcode-style QuestionsLogin Arrays Segment Compression
Coding & Leetcode-style QuestionsMOOC Course Purchase OOD
Coding & Leetcode-style QuestionsString Transformation Length
Coding & Leetcode-style QuestionsEDG HireVue Screen
BehavioralLoan Aggregation & Transaction Matching (Parent-Company Resolution)
Coding & Leetcode-style QuestionsCard Game Simulation
Coding & Leetcode-style QuestionsTransaction Balance & Minimum Settlement
Coding & Leetcode-style QuestionsShortest Unique Substring
Coding & Leetcode-style QuestionsHit Counter
Coding & Leetcode-style QuestionsFraud Detection: Debug + Event Matching
Coding & Leetcode-style QuestionsPromotion Offer Redemption Tracking
Coding & Leetcode-style QuestionsUser Trust Score from Transaction Logs
Coding & Leetcode-style QuestionsTransaction Aggregation by 24-Hour Buckets
Coding & Leetcode-style QuestionsDesign an A/B Testing / Experimentation Platform
System Design for MLVenmo-Style P2P Payment Data Model
System Design for MLHiring Manager & Behavioral Rounds
BehavioralDocument / Layer — Apply, Undo, Commit Batch, Redo
Coding & Leetcode-style QuestionsResize Stacked Rectangles — Distribute Height
Coding & Leetcode-style QuestionsValidate Brackets & Parse Nested Rich Text
Coding & Leetcode-style QuestionsSort Documents on a 2D Plane
Coding & Leetcode-style QuestionsFile / Folder / Team Permissions — Fewest Grants
Coding & Leetcode-style QuestionsFigJam Table — Selection & Set Color
Coding & Leetcode-style QuestionsTrending System / Top-K Hot Files
System Design for MLMultithreaded Integer Sort
Coding & Leetcode-style QuestionsAsync Job Scheduler
System Design for MLK-th Element on a Streaming Time Window
Coding & Leetcode-style QuestionsHarvey Values / Behavioral
BehavioralReal-Time Comment Threads (FigJam / Figma)
System Design for MLTemplate & Instance System with Update Propagation
System Design for MLDeep Dive — What Happens When You Access a URL
System Design for MLService Load Factor / Referral Count
Coding & Leetcode-style QuestionsSecurity-Flavored Coding: Constrained Data Structure & Input Validation
Coding & Leetcode-style QuestionsWeekly Calendar (React)
Coding & Leetcode-style QuestionsFractional Share Buy/Sell Inventory
Coding & Leetcode-style QuestionsFriend / Money-Transfer Request Parsing (OOD)
Coding & Leetcode-style QuestionsStock Trading / Real-Time Quote System Design
System Design for MLJob Scheduler System Design
System Design for MLRecruiter / HR Screen
BehavioralMars Rover / Robot Controller (CLI)
Coding & Leetcode-style QuestionsWord Guessing Game (Wordle-style)
Coding & Leetcode-style QuestionsURL Shortener Service (CLI)
Coding & Leetcode-style QuestionsSWE / SDE Intern Coding OA (DP + C++/Ruby)
Coding & Leetcode-style QuestionsProject / Technical Deep Dive
BehavioralLLM API Practical and Output Validation
Forward Deployment EngineeringProject Deep Dive and Paper Presentation
BehavioralTask Processor: Dependencies and Deadlines
Coding & Leetcode-style QuestionsParty Time Blocks
Coding & Leetcode-style QuestionsExisting Codebase Debugging Round
Coding & Leetcode-style QuestionsNeuron Firing Cellular Automata
Coding & Leetcode-style QuestionsSquirrel Nut Storage Tracker
Coding & Leetcode-style QuestionsSpreadsheet / Formula Engine
Coding & Leetcode-style QuestionsText Highlighting / Citation Tagging
Coding & Leetcode-style QuestionsIn-Memory File System
Coding & Leetcode-style QuestionsDatabase Connection Pool
Coding & Leetcode-style QuestionsRAG Notebook (ML Coding)
LLMs & Prompt EngineeringDesign Google Drive / Data Room
System Design for ML