Interview questions
Find a company or topic. Read the sources, then practice.
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Showing 401–425
Design a real-time bidding system for ad insertion that allows advertisers to bid on ad placements in milliseconds when users visit websites or apps. The…
Companies: Google, Netflix
Last reported Aug 2026
Companies: ByteDance
Observability · System Design
Last reported Aug 2026
Design a system that allows users to download official monthly statements generated for each billing cycle, as well as generate custom on-demand statements by selecting…
Companies: eBay
Last reported Aug 2026
Companies: Uber
System Design
Last reported Aug 2026
Companies: Amazon
System Design
Last reported Aug 2026
Design a lightweight, continuously running host agent that collects system metrics at regular intervals, including CPU, memory, disk utilization, open file descriptors, and…
Companies: Datadog
Last reported Aug 2026
Companies: Amazon
System Design
Last reported Aug 2026
Companies: Nuro
System Design
Last reported Aug 2026
Companies: OpenAI
System Design
Last reported Aug 2026
Companies: Stripe
System Design
Last reported Aug 2026
Companies: Bnsf
System Design
Last reported Aug 2026
Companies: OpenAI
System Design
Last reported Aug 2026
Companies: OpenAI
Distributed Transactions & Idempotency · System Design · System Design Fundamentals
Last reported Aug 2026
Companies: OpenAI
System Design
Last reported Aug 2026
Companies: OpenAI
System Design
Last reported Aug 2026
Design an API for generating and distributing unique meeting IDs across multiple servers, supporting incremental scalability requirements such as uniqueness guarantees, high…
Companies: Cisco
Last reported Aug 2026
Companies: Uber
System Design
Last reported Aug 2026
Companies: Fora Travel
System Design
Last reported Aug 2026
Companies: Google
System Design · System Design Fundamentals
Last reported Aug 2026
Companies: Microsoft
System Design
Last reported Aug 2026
Companies: OpenAI
System Design
Last reported Aug 2026
Companies: Google
System Design · System Design Fundamentals
Last reported Aug 2026
Design a cloud-based analytics database system from first principles, similar to ClickHouse Cloud. The design should cover key architectural concerns including coordination…
Companies: Clickhouse
Last reported Aug 2026
Companies: Whatnot
Observability · System Design
Last reported Aug 2026