Airbnb Software Engineer System Design Interview Questions
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Design a booking system
Design an online booking system (e.g., for hotel rooms, meeting rooms, or appointment slots). Requirements Cover the following in your design: - Core ...
Design a real-time chat system with hot groups
Design a real-time chat system (similar to an in-app messaging feature) that supports: - 1:1 and group conversations - Real-time delivery over WebSock...
Design a group chat system
System Design: Group Chat Design a scalable group chat system (like a basic Slack/WhatsApp group chat). Core features - Users can create groups, join/...
Design a fast host listing metrics page
Design the backend for a host (landlord) listings page. User flow: - Host opens a page showing many of their listings. - Host selects a date range. - ...
Design a group chat system
Design a WhatsApp-like group chat system. Core features: - 1:1 and group conversations - Send/receive text messages (assume small payloads) - Group me...
Design a scalable notification system
Problem Design a notification system for a company at Airbnb-like scale that can send notifications to different user types (e.g., customers/guests, h...
Design a user activity query system
Problem Design a query system that allows internal consumers (e.g., customer support, risk/fraud, data analysts) to retrieve a given user's search act...
Design and implement an Airbnb wallet
Design an Airbnb-Style Wallet (OOD + Runnable Code) Context You are asked to design an in-app wallet system that supports both guests and hosts. The w...
Design an Airbnb wallet with holds and payouts
System Design: Airbnb-Style Wallet with Ledger, Holds, FX, and Idempotency Context You are asked to design and implement an Airbnb-style wallet system...
Design rental watchlist and notification system
System Design: Rental Listing Watchlist and Availability Notifications Context You are designing a feature for a vacation-rental marketplace where gue...
Design API for split-stay combinations
Design an HTTP API for Two‑Listing Split‑Stay Search Context You are building a search service for split stays: when a guest's date range cannot be co...
Design a scalable consumer feature
System Design: Scalable, Privacy-Conscious Recommendations Service for a Consumer App Context You are designing a real-time recommendations service fo...
Design Split Stay combinations API
Split-Stay Pair Finder API Context You are designing part of Airbnb's "Split Stay" search feature. A guest requests a date range (check-in to check-ou...
Design split-stay combinations API
Design an HTTP API for Two-Listing Split-Stay Search Context You are designing search for a travel marketplace that supports split stays across two li...
Enable secure offline reservation caching
System Design: Offline Caching for Reservations (PWA) Design a web application that supports offline access to reservation information. The app is a p...
Design a hot-listing waitlist API
System Design: Waitlist API for High-Demand Listings Context You are designing a waitlist system for a marketplace that offers date-based inventory (e...
Reduce frontend network requests efficiently
Reduce Redundant Frontend Requests for Availability and Pricing Context You are designing the web client and APIs for a bookings marketplace that disp...
Design a multi-channel notification system
System Design: Multi-Channel Notifications (Email, SMS, Push, In‑App) Context Design a notification platform that reliably delivers messages across mu...
Design multi-currency pricing end-to-end
System Design: Multi-Currency Price Display and Booking Context You are building a global travel marketplace where guests discover listings, view pric...
Design scalable notification system
System Design: Low-Latency, Multi-Channel Notification Platform You are asked to design a scalable, reliable notification system that can send message...