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system design database choice articles
Focused reading for candidates preparing stronger examples, sharper technical stories, and more credible interview answers.
System DesignSystem Design
MongoDB vs Cassandra vs DynamoDB: The NoSQL Decision Engineers Never Forget
A story-driven guide to choosing between MongoDB, Cassandra, and DynamoDB in senior backend and system design interviews, built around mental models, production tradeoffs, and real-world scaling examples.
16 min readMay 22, 2026
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MongoDB vs Cassandra: How to Choose the Right Database in System Design Interviews
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.
9 min readMay 22, 2026
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