Yash Dhawane

Backend Engineer sharing practical articles on Node.js, System Design, AI Agents, RAG, Cloud, and scalable software engineering.

2 posts

Caching Strategies and Cache Invalidation: A Practical Guide for Backend Developers

Caching makes applications faster. But keeping cached data correct when the original data changes is where things get interesting. Imagine you're building an e-commerce application. Every time a user

Oct 24, 202616 min read

Oct 24, 2026
Oct 24, 202622 min read1 view
CAP Theorem Explained: AP vs CP, Quorums, Consensus, and Real-World Trade-offs
When you build a backend application, storing data in a database feels straightforward. You write a value, read it back, and expect everything to work. But what happens when your application runs acro
22 min read1 view

Latest articles

Caching Strategies and Cache Invalidation: A Practical Guide for Backend Developers

CAP Theorem Explained: AP vs CP, Quorums, Consensus, and Real-World Trade-offs