A complete July 2026 walkthrough of the news feed system design interview question, covering fan-out on write vs read, ranking algorithms, real-time updates, and pagination strategy.
A deep dive into the architecture behind search autocomplete systems: the trie service, data collection pipeline, aggregation jobs, and serving layer that make sub-100ms suggestions possible.
A complete walkthrough of designing a search autocomplete system for interviews, covering trie data structures, prefix matching, frequency-based ranking, and real-time suggestion delivery.
A deep dive into ticketing system internals: optimistic locking, distributed locks, event sourcing, CQRS, and queue-based processing, with a full booking-request walkthrough.
How to answer the ticketing system interview question: seat reservation, concurrency control, payment timeouts, waitlists, and venue layout modeling.
A component-by-component walkthrough of web crawler architecture: URL frontier queue, fetcher workers, content parser, dedup store, and sitemap discovery, with the data flow connecting them.