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5 published stories
How do you prepare a backend service for 10x traffic without rewriting the entire system? Learn how to remove scaling bottlenecks with stateless services, caching, database optimization, asynchronous processing, idempotency, and graceful overload protection.
Design a production-ready RAG system that searches 10 million documents and generates answers grounded in source evidence. Explore hybrid vector and keyword retrieval, cross-encoder reranking, citation verification, semantic caching, and document freshness strategies to improve accuracy at scale.
Why do systems that work perfectly in testing fail under real production traffic? Explore 13 categories of failure, including overload, resource exhaustion, database contention, network issues, race conditions, deployment mistakes, and hidden consistency bugs. Learn how to identify, prioritize, and test failure modes before they become production incidents.
Design an electricity bill payment platform that handles millions of payments during the end-of-month rush without double-charging customers or losing collected funds. Explore payment orchestration, legacy utility isolation, durable posting queues, escrow reconciliation, autopay load shaping, and timestamp-safe receipts.
Design a secure, ChatGPT-style enterprise assistant for 200,000 employees without compromising data privacy or access controls. Explore permission-aware RAG, classification-based model routing, user-scoped AI agents, prompt-injection defenses, auditability, and enterprise-scale cost management.