Airbnb interview questions

Maximum Profit in Job Scheduling

Choose a subset of non-overlapping jobs (jobs may touch at endpoints) to maximize total profit — the classical weighted interval scheduling problem. With up to…

Companies: Airbnb

Array · Binary Search · Dynamic Programming · Sorting

Last reported Jun 2026

Design a persistent distributed key-value store

Design a distributed key-value store that supports persistent storage with append-only file operations, handles both read-heavy and write-heavy workloads with strong…

Companies: Airbnb, Aibnb, Databricks, Geico +4

System Design

Last reported Jun 2026

Design Excel Sum Formula

Design a spreadsheet supporting set/get and sum operations where sum formulas can reference individual cells and rectangular ranges; the core challenge is maintaining a…

Companies: Airbnb, Discord

Array · Design · Graph Theory · Hash Table

Last reported Jun 2026

Design a Job Scheduler

Design a distributed job scheduler that can handle high-throughput job processing (10,000+ jobs per second), support both scheduled (cron-based) and ad-hoc job execution…

Companies: Airbnb, Apple, Autodesk, Bolt +25

System Design

Last reported May 2026

Design a Family-Friendly Listing Classifier

Companies: Airbnb

ML System Design

Last reported Apr 2026

Shopping Offers

Given unit prices, unlimited-use special bundle offers, and a target quantity for each of up to 6 items, compute the minimum cost to buy exactly…

Companies: Airbnb, Uber

Last reported Apr 2026

Design an A/B testing platform

Consistent assignment without a serving dependency, trustworthy exposure-to-outcome attribution, and results that distinguish real effects from measurement errors.

Companies: Airbnb, Affirm

attribution · configuration-distribution · data-quality · deterministic-assignment

Last reported Apr 2026

Smallest Common Region

Given lists where each entry names a parent region followed by its immediate subregions and two region names, find their smallest common region — the…

Companies: Airbnb

Array · Binary Lifting · Breadth-First Search · Depth-First Search

Last reported Apr 2026

Design a Scalable Job Scheduler

Companies: Airbnb

System Design

Last reported Apr 2026

Find Valid Split-Stay Listing Combinations

Given a map of listing names to their available day numbers and a requested date range [startDay, endDay], return all valid stay options including single…

Companies: Airbnb

Last reported Apr 2026

Design Fraud detection system

Design a fraud detection system that allows businesses to monitor transactions in real-time, identify suspicious activity, and automatically flag or block potentially…

Companies: Airbnb, Google, Microsoft, Plaid

ML System Design

Last reported Apr 2026

Accounts Merge

Given lists of accounts where each account has a name and emails, merge accounts that share any email by grouping connected emails (e.g., via union-find…

Companies: Airbnb, Bloomberg, Meta, Oracle +1

Array · Breadth-First Search · Depth-First Search · Hash Table

Last reported Apr 2026

Design a Rental Marketplace Backend

Companies: Airbnb

System Design · System Design Fundamentals

Last reported Mar 2026

Design a booking system

Companies: Airbnb

System Design · System Design Fundamentals

Last reported Feb 2026

Design a real-time chat system with hot groups

Companies: Airbnb

Real-Time Systems · System Design

Last reported Jan 2026

Design a group chat system

Companies: Airbnb

Real-Time Systems · System Design

Last reported Jan 2026

Design a distributed key-value store

Partitioned storage with replication: durable writes, availability during partitions, ownership changes, and convergence after failures.

Companies: Airbnb, Apple, Avalara, Canva +4

consistency · failure-recovery · hot-keys · partitioning

Last reported Jan 2026

Design a fast host listing metrics page

Companies: Airbnb

System Design

Last reported Dec 2025

Design a user activity query system

Companies: Airbnb

System Design · System Design Fundamentals

Last reported Dec 2025

Design a multi-channel notification system

Companies: Airbnb

System Design · System Design Fundamentals

Last reported Sep 2025

Design a scalable consumer feature

Companies: Airbnb

Recommendation Systems · System Design

Last reported Sep 2025

Design an Airbnb wallet with holds and payouts

Companies: Airbnb

System Design

Last reported Sep 2025