Interview questions
Find a company or topic. Read the sources, then practice.
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Find a company or topic. Read the sources, then practice.
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Showing 1–25
Companies: Google
System Design · System Design Fundamentals
Last reported Nov 2026
Companies: Whatnot
System Design
Last reported Nov 2026
Companies: Applied Intuition
System Design
Last reported Nov 2026
Companies: GitHub
System Design
Last reported Nov 2026
Companies: Elevenlabs
Real-Time Systems · System Design
Last reported Nov 2026
Design a real-time messaging system like WhatsApp or Facebook Messenger that supports 1:1 and group conversations, message delivery status tracking, user presence features…
Companies: Addepar, Airbnb, Airwallex, Amazon +22
System Design
Last reported Nov 2026
Companies: Harvey
Authentication & Authorization · System Design
Last reported Nov 2026
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 Nov 2026
Companies: Rippling
API Design · System Design
Last reported Nov 2026
Companies: Rippling
System Design · System Design Fundamentals
Last reported Nov 2026
Companies: Okta
System Design · System Design Fundamentals
Last reported Nov 2026
Companies: Meta
System Design
Last reported Nov 2026
Companies: Rippling
System Design
Last reported Nov 2026
URL frontier, politeness, deduplication at scale, distributed workers, failure and trap handling.
Companies: Amazon, Anthropic, Atlassian, Expedia +7
bloom-filters · deduplication · distributed-workers · dns
Last reported Nov 2026
Companies: Meta
System Design
Last reported Nov 2026
Companies: OpenAI
File & Media Storage · System Design · System Design Fundamentals
Last reported Oct 2026
Companies: Amazon
System Design
Last reported Oct 2026
Companies: DoorDash, Microsoft, OpenAI
API Design · Caching · System Design · System Design Fundamentals
Last reported Oct 2026
Companies: OpenAI
Messaging & Event-Driven · System Design · System Design Fundamentals
Last reported Oct 2026
Companies: Bnsf
Real-Time Systems · System Design
Last reported Oct 2026
Companies: Instacart
System Design · System Design Fundamentals
Last reported Oct 2026
Read-heavy key-value service: unique short-code generation, hot-key caching, redirect semantics.
Companies: Amazon, Anduril, Apple, Bending Spoons +26
API Design · caching · hot-keys · http-redirects
Last reported Oct 2026
Companies: DoorDash
System Design · System Design Fundamentals
Last reported Oct 2026
Companies: eBay
System Design
Last reported Oct 2026
Companies: DoorDash
System Design · System Design Fundamentals
Last reported Oct 2026