backend

Complete SQL and NoSQL learning roadmap for developers. Master SQL fundamentals, advanced queries, PostgreSQL, MongoDB, Redis, indexing, transactions, schema design, and when to choose SQL vs NoSQL.

Learn Express.js fundamentals from scratch. Set up your first Express server, understand middleware, handle HTTP requests, and build a simple REST API with complete code examples.

Master software architecture patterns from monoliths to microservices. A comprehensive roadmap covering layered, event-driven, hexagonal, clean architecture, CQRS, DDD, serverless, and how to choose the right pattern.

Deep dive into IoT communication protocols. Learn MQTT pub/sub with QoS, CoAP for constrained devices, AMQP for enterprise messaging, and WebSocket for real-time dashboards with practical setup examples.

Master Spring Boot performance optimization with JVM profiling, Actuator metrics, database tuning, HTTP caching, GC optimization, and startup acceleration. A complete guide to building high-performance Java applications with measurable improvements.

Go beyond unit and integration tests. Learn consumer-driven contract testing with Spring Cloud Contract, API compatibility verification, performance testing with Gatling, load testing strategies, and advanced testing patterns for production-ready Spring Boot applications.

Master IoT development from fundamentals to production systems. Learn MQTT, edge computing, data pipelines, security, and scaling patterns in this comprehensive 12-post series.

Step-by-step guide to building and deploying a Bun + Hono REST API to Vercel using a free GitHub public repo. Covers project setup, Vercel adapter, environment variables, and CI/CD.

Master load balancing fundamentals: algorithms (Round Robin, Least Connections, IP Hash), Layer 4 vs Layer 7, health checks, session persistence, SSL termination, and implementation with Nginx, HAProxy, and cloud providers.

Master production-ready Node.js API development with TypeScript. Learn Express.js and Fastify setup, middleware patterns, request validation with Zod, error handling, authentication, file uploads, background jobs, and logging.