5 min read System Design Interview: Distributed Transactions, 2PC, and the Saga Pattern When a business operation spans multiple microservices or databases, maintaining […] Read article
5 min read System Design Interview: Design a Real-Time Collaborative Editor (Google Docs) A collaborative editor allows multiple users to edit the same Read article
5 min read System Design Interview: Design a Feature Flag System Feature flags (feature toggles) enable teams to deploy code to production without Read article
6 min read Two Pointers and Sliding Window Interview Patterns Two pointers and sliding window are techniques that turn O(n²) brute-force solutions into Read article
5 min read System Design Interview: Design a Metrics and Monitoring System Every large tech company runs a custom metrics and monitoring platform. Read article
6 min read Graph Algorithm Interview Patterns: BFS, DFS, Dijkstra, Topological Sort Graph problems are a staple of coding interviews. The key is Read article
5 min read Segment Tree and Range Query Interview Patterns Segment trees solve range query problems — finding the sum, min, max, or Read article
5 min read System Design Interview: Design a Distributed Job Scheduler A distributed job scheduler runs tasks reliably across a cluster of machines. Read article
6 min read Trie and String Matching Interview Patterns Tries (prefix trees) and string matching algorithms are a distinct category in coding interviews. Read article
5 min read System Design Interview: Design a Live Video Streaming Platform (Twitch) Live streaming is fundamentally different from video-on-demand (Netflix/YouTube). A streamer Read article
5 min read Amortized Analysis and Time Complexity Patterns Amortized analysis evaluates the average performance of operations over a sequence, not worst-case per Read article
5 min read System Design Interview: Design a Distributed Key-Value Store A distributed key-value store is one of the foundational system design questions Read article
5 min read System Design Interview: Design a Web Search Engine Designing a web search engine is one of the most technically rich Read article
4 min read Minimum Spanning Tree: Kruskal’s and Prim’s Algorithms A Minimum Spanning Tree (MST) connects all vertices of a weighted graph with Read article
4 min read Dynamic Programming Patterns II: Knapsack, LCS, Edit Distance Beyond simple memoization, there are classic DP problem families where recognizing the Read article
