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Software Engineer interview questions at Airbnb

264 verified questions reported by Software Engineer candidates interviewing at Airbnb. Each one is archetype-tagged so you can see the pattern, slot the right STAR story, and practice out loud against an AI interviewer that pushes back the way a real one would.

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Top 25 verified questions

Sorted by quality score (specificity, clarity, practice-worthiness) with a tie-break on most recently observed.

  1. 1
    How would you architect a distributed real-time data processing system that can simultaneously handle streaming updates across multiple client platforms?
    system design·onsite
  2. 2
    Design a Least Recently Used (LRU) cache with O(1) get and put operations. Walk me through your implementation strategy.
    technical·technical
  3. 3
    Walk me through how you would architect a scalable file storage service similar to Dropbox or Google Drive.
    system design·onsite
  4. 4
    Describe the time complexity of QuickSort, MergeSort, and BubbleSort, and explain their Big-O runtime characteristics.
    technical
  5. 5
    Walk me through how you would architect a distributed group messaging platform that supports real-time communication for 10 million concurrent users.
    system design·technical
  6. 6
    Walk me through how you would architect a scalable real-time chat system supporting both one-to-one and group messaging using WebSocket technology.
    system design·onsite
  7. 7
    Walk me through how you would architect a scalable news feed system that can handle millions of daily active users and real-time updates.
    system design·technical
  8. 8
    Walk me through how you would architect a high-scale photo and video sharing platform like Instagram Stories with real-time updates.
    system design·onsite
  9. 9
    Walk me through how you would design a scalable online booking system that supports multiple reservation types and real-time availability tracking.
    system design·onsite
  10. 10
    Describe the core mechanisms of garbage collection and how memory management differs between Java and Python.
    technical
  11. 11
    Design a distributed rate limiter that can handle 1000 requests per second across multiple service instances with low latency.
    technical·technical
  12. 12
    How would you design a distributed booking system that prevents double-booking and manages concurrent reservation cancellations?
    system design·onsite
  13. 13
    Describe the message broker you've selected for your most recent distributed system and explain your reasoning behind that choice.
    technical·onsite
  14. 14
    Describe a potential feature enhancement for Airbnb that would improve user experience or platform functionality.
    case
  15. 15
    Walk me through your approach to designing a scalable recommendation system for a large e-commerce platform.
    system design
  16. 16
    Walk me through how hash tables function internally and describe a real-world scenario where you would implement one.
    technical
  17. 17
    Walk me through how you would architect a scalable customer support ticketing system for an enterprise with 10,000+ daily support requests.
    system design·onsite
  18. 18
    How would you design an algorithm to find all index pairs in a word list where concatenating those words creates a palindrome?
    technical·phone screen
  19. 19
    Describe a challenging distributed system you've designed, implemented, and supported in a production environment.
    behavioral·onsite
  20. 20
    Walk me through your approach to diagnosing and troubleshooting a sudden drop in a critical performance metric.
    case
  21. 21
    Describe your approach to implementing retry mechanisms for booking and payment transactions to ensure system reliability.
    technical·onsite
  22. 22
    Describe a situation where you missed a project deadline and how you handled the communication and resolution with stakeholders.
    situational
  23. 23
    Describe memoization and explain how it optimizes recursive algorithms in dynamic programming scenarios.
    technical
  24. 24
    Given an elevation map representing terrain heights, describe how you would calculate water distribution after V units of water are poured at index K.
    technical·phone screen
  25. 25
    Describe an algorithm to find the cheapest flight route between two cities, allowing a maximum number of intermediate stops.
    technical·phone screen

Common questions

How many Software Engineer interview questions does Airbnb actually ask?

It varies by round — phone screen typically covers 5–8 questions, on-site loops cover 15–25 across multiple interviewers. The full Airbnb Software Engineer loop tends to surface 30+ distinct prompt patterns, which is what we've banked here.

Are these questions actually asked at Airbnb?

Yes — every question on this page is verified, meaning at least one candidate reported being asked it in a real Airbnb interview. We don't pad the list with generic prompts that weren't reported.

What's the best way to prepare for a Software Engineer interview at Airbnb?

Pick three to five of the questions below in your weakest archetype, run them through the practice tool out loud, and read the per-answer feedback. Most candidates who get an offer report 8–15 practice sessions in the two weeks before the interview.

Does Airbnb ask different questions for different Software Engineer levels?

The behavioral questions stay roughly the same; what changes is the bar on the answer. At more senior levels, Airbnb expects more concrete business outcomes, more stakeholder management, and more scope in the stories. The technical bar also shifts upward.

Read them. Then practice them.

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