A scalable Discord-like chat system demonstrating sharding strategies, load balancing, and real-world system design challenges.

A curated collection of backend engineering notes covering architecture, databases, messaging, security, and more — targeted at mid-to-senior backend roles.

A backend project that shows how to optimize and scale databases in real-world systems. It covers indexing, caching, avoiding N+1 queries, connection pooling, replication, sharding, async processing, and monitoring using Spring Boot and MongoDB