senior engineer system design articles
Focused reading for candidates preparing stronger examples, sharper technical stories, and more credible interview answers.
One Storytelling Technique That Makes You Stand Out in Every System Design Interview
How Google Drive becomes a courier network, Uber becomes taxi dispatch, and Domino's becomes the easiest way to explain queues
A short, practical guide to using real-world operational analogies to explain distributed systems clearly in system design interviews.
The Ultimate System Design Mental Model: Mapping Real-World Problems to Technologies
How restaurant menus, Domino's kitchens, airport boards, warehouses, libraries, and flight control rooms explain the technologies senior engineers choose in system design interviews
A book-style system design guide that maps real operational bottlenecks to technologies like Redis, Kafka, WebSockets, object storage, Elasticsearch, Cassandra, DynamoDB, CDNs, API gateways, retries, and observability.
MongoDB vs Cassandra: How to Choose the Right Database in System Design Interviews
How a festival-sale e-commerce system explains when MongoDB feels natural and when Cassandra becomes the safer scaling choice
A practical, story-driven guide to choosing MongoDB vs Cassandra in system design interviews, with real-world examples, comparison tables, tradeoffs, and easy memory rules.
Database Sharding System Design Interview: The Pizza Night Story Engineers Never Forget
How one overloaded pizza database explains sharding, partition keys, hotspots, replication, and interview-ready scaling tradeoffs
A story-driven guide to database sharding for system design interviews, covering partition keys, scaling bottlenecks, tradeoffs, failures, and the mental model senior engineers use under pressure.