Anduril interview questions and how to prepare
The questions candidates report from Anduril interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Anduril's interview style.
ZorixOS tracks 55 community-reported Anduril interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 78 original ZorixOS practice questions written in Anduril's known interview style (not claimed as asked at Anduril), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Anduril.
Updated July 2026
Anduril interview questions candidates report
Community-reported from real Anduril interviews (open-source dataset), most-asked first. Showing 55. Each links to its source.
- Course Schedule IIDepth-First SearchBreadth-First SearchGraph TheoryTopological SortMedium100% asked
- Daily TemperaturesArrayStackMonotonic StackMedium100% asked
- Number of IslandsArrayDepth-First SearchBreadth-First SearchUnion-FindMedium100% asked
- Ransom NoteHash TableStringCountingEasy100% asked
- Maximum Number of Visible PointsArrayMathGeometrySliding WindowHard92% asked
- Rotting OrangesArrayBreadth-First SearchMatrixMedium92% asked
- HeatersArrayTwo PointersBinary SearchSortingMedium89% asked
- Queries on Number of Points Inside a CircleArrayMathGeometryMedium89% asked
- Video StitchingArrayDynamic ProgrammingGreedyMedium85% asked
- Word Break IIArrayHash TableStringDynamic ProgrammingHard82% asked
- Balanced Binary TreeTreeDepth-First SearchBinary TreeEasy81% asked
- Binary Tree Inorder TraversalStackTreeDepth-First SearchBinary TreeEasy81% asked
- Brace ExpansionStringBacktrackingStackBreadth-First SearchMedium81% asked
- Buildings With an Ocean ViewArrayStackMonotonic StackMedium81% asked
- Course ScheduleDepth-First SearchBreadth-First SearchGraph TheoryTopological SortMedium81% asked
- Insert into a Binary Search TreeTreeBinary Search TreeBinary TreeMedium81% asked
- Making A Large IslandArrayDepth-First SearchBreadth-First SearchUnion-FindHard81% asked
- Shortest Path in Binary MatrixArrayBreadth-First SearchMatrixMedium81% asked
- Shortest Word DistanceArrayStringEasy81% asked
- Find Median from Data StreamTwo PointersDesignSortingHeap (Priority Queue)Hard77% asked
- Group AnagramsArrayHash TableStringSortingMedium77% asked
- Search Suggestions SystemArrayStringBinary SearchTrieMedium77% asked
- Binary Tree Vertical Order TraversalHash TableTreeDepth-First SearchBreadth-First SearchMedium71% asked
- String CompressionTwo PointersStringMedium71% asked
- Shortest Word Distance IIArrayHash TableTwo PointersStringMedium69% asked
- Merge IntervalsArraySortingMedium69% asked
- Race CarDynamic ProgrammingHard65% asked
- Merge k Sorted ListsLinked ListDivide and ConquerHeap (Priority Queue)Merge SortHard62% asked
- Spiral MatrixArrayMatrixSimulationMedium62% asked
- Minimum Rounds to Complete All TasksArrayHash TableGreedyCountingMedium60% asked
- Push DominoesTwo PointersStringDynamic ProgrammingMedium60% asked
- Time Based Key-Value StoreHash TableStringBinary SearchDesignMedium60% asked
- Meeting Rooms IIArrayTwo PointersGreedySortingMedium58% asked
- Evaluate Reverse Polish NotationArrayMathStackMedium54% asked
- Game of LifeArrayMatrixSimulationMedium54% asked
- Insert into a Sorted Circular Linked ListLinked ListMedium54% asked
- MinesweeperArrayDepth-First SearchBreadth-First SearchMatrixMedium54% asked
- Palindromic SubstringsTwo PointersStringDynamic ProgrammingMedium54% asked
- Valid ParenthesesStringStackEasy54% asked
- Accounts MergeArrayHash TableStringDepth-First SearchMedium52% asked
- Find the Duplicate NumberArrayTwo PointersBinary SearchBit ManipulationMedium52% asked
- Snakes and LaddersArrayBreadth-First SearchMatrixMedium52% asked
- Verifying an Alien DictionaryArrayHash TableStringEasy52% asked
- Flatten Binary Tree to Linked ListLinked ListStackTreeDepth-First SearchMedium46% asked
- Flip Equivalent Binary TreesTreeDepth-First SearchBinary TreeMedium46% asked
- Max Area of IslandArrayDepth-First SearchBreadth-First SearchUnion-FindMedium46% asked
- Move ZeroesArrayTwo PointersEasy46% asked
- Number of Distinct IslandsArrayHash TableDepth-First SearchBreadth-First SearchMedium46% asked
- Search in Rotated Sorted ArrayArrayBinary SearchMedium46% asked
- Surrounded RegionsArrayDepth-First SearchBreadth-First SearchUnion-FindMedium46% asked
- Two SumArrayHash TableEasy46% asked
- House RobberArrayDynamic ProgrammingMedium43% asked
- LRU CacheHash TableLinked ListDesignDoubly-Linked ListMedium43% asked
- Minimum Window SubstringHash TableStringSliding WindowHard43% asked
- Rotate ImageArrayMathMatrixMedium43% asked
Practice questions in Anduril's style
Original ZorixOS questions written the way Anduril interviews, so you rehearse the real format. Not claimed as asked at Anduril.
Imagine you are designing a new feature for Anduril's Lattice platform to enable autonomous drone swarming for reconnaissance missions over contested airspace. Describe the high-level system architecture, focusing on how you would ensure real-time communication, threat assessment, and coordinated decision-making among the drones.
Software EngineerSystem DesignTests: Evaluates system design skills, understanding of distributed systems, and ability to apply them to complex defense scenarios.We are developing a new AI model for Anduril's Counter-UAS system. You've identified a potential bug in the object detection pipeline where it's misclassifying small, fast-moving drones as birds. How would you systematically debug this issue, from initial hypothesis to validation?
Software EngineerDebuggingTests: Assesses debugging methodology, analytical thinking, and problem-solving skills in an AI context.Given Anduril's focus on AI-powered defense, how would you design a CI/CD pipeline for a safety-critical system like Anvil, ensuring both rapid iteration and robust verification of AI model performance before deployment?
Software EngineerSystem DesignTests: Tests understanding of CI/CD for ML, safety critical systems, and balancing speed with reliability.You are building a real-time threat assessment module for Anduril's Altius system. The system needs to process sensor data from multiple sources (radar, electro-optical, acoustic) and fuse it to identify and track potential threats. Discuss the challenges of data fusion in a high-latency, potentially noisy environment and propose solutions.
Software EngineerSystem DesignTests: Probes system design for sensor fusion, real-time processing, and handling noisy, high-latency data.Anduril's products often operate in environments with intermittent connectivity. Design a system for a dismounted soldier using an Anduril device that can reliably collect and synchronize sensor data when connectivity is restored, prioritizing critical information.
Software EngineerSystem DesignTests: Evaluates ability to design for unreliable networks and data synchronization strategies.Describe how you would implement a robust logging and monitoring strategy for Anduril's cloud-based command and control systems to detect anomalies and ensure system health in real-time.
Software EngineerSystem DesignTests: Assesses knowledge of logging, monitoring, and anomaly detection for distributed systems.
72+ more Anduril-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.
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