Interview questions
Find a company or topic. Read the sources, then practice.
Loading the question library…
Find a company or topic. Read the sources, then practice.
Loading the question library…
Showing 526–550
Design an AI-powered internal knowledge assistant that allows organization users to query and retrieve relevant information from internal wikis, shared designs, and code…
Companies: Google
Last reported Jul 2026
Companies: Rippling
System Design · System Design Fundamentals
Last reported Jul 2026
Design a scalable API that allows school administrators to query how much time students spent on a given application within a specified school and time…
Companies: Clever
Last reported Jul 2026
Design a self-service kiosk system that allows users to browse options, place orders or requests, process payments, and receive confirmations or printed receipts.
Companies: Walmart
Last reported Jul 2026
Design a financial clearing house system that processes transactions between parties and generates end-of-day reports showing credit/debit amounts for each party. The system…
Companies: Ripple, Uber
Last reported Jul 2026
Design a highly scalable system that tracks and computes the top K trending hashtags (e.g., top 30-50) across different time windows (last 5/15/30/60 minutes or…
Companies: Atlassian, Google, LinkedIn, Meta +1
Last reported Jul 2026
Design a location-based service like Yelp that allows users to search for nearby businesses using latitude/longitude coordinates, with support for global scale and high query…
Companies: Apple, Meta, OpenAI, Twilio +1
Last reported Jul 2026
Companies: Google
Real-Time Systems · System Design
Last reported Jul 2026
Companies: OpenAI
Distributed Transactions & Idempotency · Payments & Ledgers · System Design
Last reported Jul 2026
Design a system that receives GitHub pull requests via webhook, analyzes code for vulnerabilities using local APIs (Java, C#, Python), posts comments back to GitHub…
Companies: Microsoft
Last reported Jul 2026
Companies: Bloomberg
System Design
Last reported Jul 2026
Companies: Ramp
System Design
Last reported Jul 2026
Design a command and control system that allows operators to remotely monitor, manage, and send instructions to a fleet of distributed devices or agents, ensuring…
Companies: Anduril
Last reported Jul 2026
Companies: OpenAI
Real-Time Systems · System Design · System Design Fundamentals
Last reported Jul 2026
Companies: Google
System Design · System Design Fundamentals
Last reported Jul 2026
Companies: OpenAI
Multiplayer Game Systems · Real-Time Systems · System Design
Last reported Jul 2026
Companies: OpenAI
Distributed Coordination · Multiplayer Game Systems · System Design
Last reported Jul 2026
Design a secure OTP (One-Time Passcode) generation and verification service that enables internal teams to integrate user-facing verification flows, supporting high-scale usage…
Companies: Stripe
Last reported Jul 2026
Design a presence service API that allows users to track and display online/offline status, activity states, and real-time presence information across multiple devices and…
Companies: Microsoft
Last reported Jul 2026
Design a system that facilitates the migration of on-premises infrastructure and workloads to the cloud, including features like workload assessment, data transfer, cutover…
Companies: Google
Last reported Jul 2026
Companies: OpenAI
Sandboxing & Isolation · System Design · System Design Fundamentals
Last reported Jul 2026
Design a system similar to Google Street View that supports 100k cars with smart devices capturing and uploading street-level imagery, while serving 1M concurrent users…
Companies: Google, Meta
Last reported Jul 2026
Design a waitlist system for property bookings where users can join waitlists for unavailable dates, hosts can view waitlist demand, and users get notified when…
Companies: Airbnb
Last reported Jul 2026
Design a system that allows users to subscribe to listings and automatically notifies them when those listings become available.
Companies: Airbnb
Last reported Jul 2026
Companies: Anthropic
Fault Tolerance & Failover · File & Media Storage · System Design
Last reported Jul 2026