The Dev Log

Database Engineering

PostgreSQL vs. MongoDB: Which Database Should You Choose in 2026?

A comprehensive comparison of SQL vs NoSQL, focusing on ACID compliance, horizontal scalability, and developer experience.

Security

Securing Node.js APIs with JWT

An essential guide to implementing stateless authentication using JSON Web Tokens to protect your Express.js applications.

System Design

Scaling Node.js with Redis Caching

How to significantly reduce database latency and improve response times using in-memory data structures with Redis.

Frontend Performance

Optimizing React Performance for Slow Networks

Techniques to enhance user experience on React applications under constrained network conditions, including code-splitting and lazy loading.

Network Protocols

The Engineer's Guide to Network Protocols: SMB, FTP, FTPS & SFTP

An in-depth comparison of SMB, FTP, FTPS, and SFTP protocols for secure file transfer and sharing.

Backend Engineering

Mastering the Node.js Event Loop: Preventing Bottlenecks

Strategies to avoid blocking operations in high-traffic Node.js applications, ensuring optimal performance and responsiveness.