“It worked locally. Tests passed. But production still broke.” If you’re building distributed systems with multiple services and frontends, you’ve likely encountered this (whether using .NET +...
Django is an incredibly powerful framework for building web applications quickly. However, as your application grows, certain tasks begin to slow down request-response cycles. Examples include: ...
File uploads are one of those features that look simple… until they aren’t. Images need previewing. CSV files need parsing. Excel files need validation. Large files need handling. And suddenly you...
At the beginning of year (2026), I took some time to reflect on my past behavior, not in terms of code quality, architectural decisions, or career milestones, but something far more mundane and qui...
Who would’ve thought I’d open my editor on the 29th of December not to debug production or chase a failing test—but to write this recap? Because apparently, I enjoy explaining bugs to the internet....
How a single oversized configuration file brought down parts of the internet and why this matters for every engineering team. On November 18, 2025, the internet shook a little. Cloudflare, the ma...
Stripe offers a powerful ecosystem for building payment platforms, marketplaces, and financial applications. One of its most powerful products, Stripe Connect, allows you to facilitate payments bet...
Software testing is more than writing a few unit tests and hoping for the best. To deliver reliable software, teams need a balanced testing strategy — one that combines Unit, Integration, and End-t...
If unit tests check individual functions, and integration tests check how those functions work together, end-to-end (E2E) tests take it all the way: They simulate real user workflows from start to ...
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 t...