ZorixOS
25+ Waymo questions

Waymo interview questions and how to prepare

The questions candidates report from Waymo interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Waymo's interview style.

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ZorixOS tracks 25 community-reported Waymo 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 Waymo's known interview style (not claimed as asked at Waymo), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Waymo.

Updated July 2026

Waymo interview questions candidates report

Community-reported from real Waymo interviews (open-source dataset), most-asked first. Showing 25. Each links to its source.

  1. Max Points on a Line
    ArrayHash TableMathGeometry
    Hard100% asked
  2. Number of Islands
    ArrayDepth-First SearchBreadth-First SearchUnion-Find
    Medium100% asked
  3. Number of Visible People in a Queue
    ArrayStackMonotonic Stack
    Hard100% asked
  4. Random Pick with Weight
    ArrayMathBinary SearchPrefix Sum
    Medium100% asked
  5. Logger Rate Limiter
    Hash TableDesignData Stream
    Easy92% asked
  6. Minimum Number of Refueling Stops
    ArrayDynamic ProgrammingGreedyHeap (Priority Queue)
    Hard92% asked
  7. Maximum Gap
    ArraySortingBucket SortRadix Sort
    Medium89% asked
  8. Meeting Rooms II
    ArrayTwo PointersGreedySorting
    Medium77% asked
  9. Design Excel Sum Formula
    ArrayHash TableStringGraph Theory
    Hard71% asked
  10. Minimum Area Rectangle
    ArrayHash TableMathGeometry
    Medium71% asked
  11. Minimum Knight Moves
    Breadth-First Search
    Medium71% asked
  12. Design Tic-Tac-Toe
    ArrayHash TableDesignMatrix
    Medium68% asked
  13. Shortest Distance from All Buildings
    ArrayBreadth-First SearchMatrix
    Hard68% asked
  14. Divide Array in Sets of K Consecutive Numbers
    ArrayHash TableGreedySorting
    Medium61% asked
  15. Find Peak Element
    ArrayBinary Search
    Medium61% asked
  16. Largest Rectangle in Histogram
    ArrayStackMonotonic Stack
    Hard61% asked
  17. Text Justification
    ArrayStringSimulation
    Hard61% asked
  18. Alien Dictionary
    ArrayStringDepth-First SearchBreadth-First Search
    Hard58% asked
  19. Car Fleet
    ArrayStackSortingMonotonic Stack
    Medium58% asked
  20. Maximum Earnings From Taxi
    ArrayHash TableBinary SearchDynamic Programming
    Medium58% asked
  21. Number of Islands II
    ArrayHash TableUnion-Find
    Hard58% asked
  22. Path With Minimum Effort
    ArrayBinary SearchDepth-First SearchBreadth-First Search
    Medium58% asked
  23. Range Sum Query 2D - Immutable
    ArrayDesignMatrixPrefix Sum
    Medium58% asked
  24. Regular Expression Matching
    StringDynamic ProgrammingRecursion
    Hard58% asked
  25. Robot Room Cleaner
    BacktrackingInteractive
    Hard58% asked

Practice questions in Waymo's style

Original ZorixOS questions written the way Waymo interviews, so you rehearse the real format. Not claimed as asked at Waymo.

  1. Imagine Waymo's fleet experiences a sudden, unexpected drop in LIDAR performance across 10% of vehicles in Phoenix during peak hour. Describe the immediate steps a Software Engineer would take to diagnose and mitigate this issue, considering the scale of operations and safety critical nature. testing: evaluating problem-solving under pressure, technical breadth, and understanding of critical systems. d: Hard

    Software EngineerDebugging and Incident ResponseTests: evaluating problem-solving under pressure, technical breadth, and understanding of critical systems.

  2. Design a system to detect and alert on anomalous sensor readings (e.g., camera glare, radar interference) in real-time for a subset of the Waymo fleet. Consider data ingestion, processing, anomaly detection algorithms, and alert mechanisms. testing: assessing system design skills for distributed, real-time applications and fault tolerance. d: Hard

    Software EngineerSystem DesignTests: assessing system design skills for distributed, real-time applications and fault tolerance.

  3. You are given a log of Waymo vehicle maneuvers (e.g., lane changes, turns, braking) and sensor data for a specific challenging scenario (e.g., unprotected left turn at a busy intersection). Write a Python function to identify instances where the vehicle's behavior was sub-optimal or potentially unsafe, and explain your reasoning. testing: testing coding ability, logical reasoning, and understanding of autonomous driving behavior. d: Medium

    Software EngineerCoding and ReasoningTests: testing coding ability, logical reasoning, and understanding of autonomous driving behavior.

  4. Our simulation environment is generating millions of synthetic driving scenarios. How would you design a system to prioritize which scenarios are most valuable to run for validating new perception model updates, considering factors like edge case rarity and computational cost? testing: assessing system design for large-scale data processing and prioritization. d: Medium

    Software EngineerSystem DesignTests: assessing system design for large-scale data processing and prioritization.

  5. A Waymo driver reports inconsistent ride quality in a specific geographic area. Walk through how you'd use available telemetry data (e.g., acceleration, jerk, speed, road surface data) and potentially other sources to pinpoint the root cause. testing: evaluating debugging skills and ability to connect sensor data to user experience. d: Medium

    Software EngineerDebuggingTests: evaluating debugging skills and ability to connect sensor data to user experience.

  6. How would you design a robust data pipeline for ingesting and processing high-frequency sensor data (LIDAR, camera, radar) from thousands of Waymo vehicles, ensuring data integrity and low latency for downstream AI model training? testing: assessing system design for real-time data pipelines at scale. d: Hard

    Software EngineerSystem DesignTests: assessing system design for real-time data pipelines at scale.

72+ more Waymo-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

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Waymo Interview Questions (2026) | ZorixOS