Reflecting on the key engineering lessons, articles, and themes from 2025 — covering system design, testing strategies, performance optimizations, engineering culture, and real-world case studies.
Learn the key takeaways from the Cloudflare outage (November 2025), including the importance of configuration management, the dangers of hidden assumptions, and best practices for incident response.
Learn the differences between Stripe Connect's Standard, Express, and Custom account types. This comprehensive guide covers when to use each type, implementation examples in Laravel, C#, and Python...
The Testing Pyramid is a crucial model for structuring your automated tests effectively. This guide explores how to balance unit, integration, and end-to-end tests, integrate them into CI/CD pipeli...
E2E tests validate user workflows from start to finish, ensuring the entire application stack works as expected. They cover everything from frontend to backend, database, APIs, and sometimes even e...
Integration tests sit in the sweet spot between tiny, fast unit tests and slow, expensive end-to-end tests. They verify that multiple parts of your system cooperate correctly, e.g., your API layer ...
Unit tests are the safety net that let you refactor without fear, document behavior without docs, and ship with confidence. Done well, they’re fast, reliable, and cheap to maintain. Done poorly, th...
Understanding the differences between unit, integration, and end-to-end tests is crucial for building robust software. This guide breaks down each type of test, their purposes, and best practices f...
Scalability isn’t just about more servers—it’s about smarter design. From Python’s async APIs to C#’s enterprise performance, PHP’s proven reliability, and Dart’s async-first power—discover how to ...
From “It worked on my machine” to “Must be a browser issue”, explore the funniest (and most common) developer excuses when things go sideways, plus what really went wrong.