Author name: Admin

⏱ 7 min read What Is Apache Kafka? Apache Kafka is a distributed event streaming platform built for high-throughput, fault-tolerant, real-time data pipelines. Unlike […] Read article

⏱ 8 min read Requirements Functional: subscribe/unsubscribe users to plans, charge recurring fees at billing intervals, support upgrades/downgrades with proration, apply coupons and discounts, Read article

⏱ 7 min read Low-Level Design: Ride-Sharing Driver App The driver-side of a ride-sharing app manages driver state, trip offers, earnings tracking, and location Read article

⏱ 6 min read Low-Level Design: Payment Processing System A payment processing system handles payment initiation, authorization, capture, refund, and failure recovery. Correctness and Read article

⏱ 7 min read Low-Level Design: Social Media Feed (Twitter/Instagram) A social media feed system manages posts, follows, likes, and generates a personalized home Read article

⏱ 7 min read Low-Level Design: Customer Support Ticketing System A ticketing system manages customer support requests from creation through resolution. It involves ticket Read article

⏱ 6 min read Low-Level Design: Inventory Management System An Inventory Management System (IMS) tracks product stock levels, warehouse locations, reorder triggers, and stock Read article

⏱ 6 min read Low-Level Design: Shopping Cart and Checkout System A shopping cart system manages item selection, inventory reservation, coupon application, pricing, and Read article

⏱ 7 min read Low-Level Design: Hotel Reservation System A hotel reservation system manages room inventory, bookings, availability checks, pricing, and cancellations. It is Read article

⏱ 5 min read System Design: Content Delivery Network (CDN) A CDN is a geographically distributed network of edge servers that caches and serves Read article

⏱ 5 min read Sharding and Data Partitioning: System Design Deep Dive Sharding (horizontal partitioning) splits a large dataset across multiple database nodes so Read article

⏱ 6 min read Low-Level Design: Bank Account Transaction System The bank account transaction system LLD models accounts, transactions, and balance management with strong Read article

⏱ 6 min read System Design: Distributed Tracing System (Jaeger/Zipkin-style) Distributed tracing tracks a single request as it propagates through microservices, allowing engineers to Read article

⏱ 6 min read Low-Level Design: Online Code Judge (LeetCode-style) The online code judge LLD involves designing a system that accepts code submissions, compiles Read article