Databases
Demystifying Database Indexing: B-Trees, Hash, and Execution Plans
Understand what happens under the hood when querying MySQL or PostgreSQL and how to eliminate slow table scans.
Database Engineering & Performance
B-Trees, composite indexes, query plans, replication topologies, and high-performance SQL.
Architecture
Building Resilient Web Architectures: From Zero to Scale
Database connection pooling, read replicas, and caching layers to guarantee resilience under massive spikes.