Two developers. Same deadline. Different habits. One writes code, manually checks it works, and ships. Fast, confident, done. The other writes tests first, sees them fail, then writes code to make them pass. Slower at the start. Much faster later. Three months in, the first developer is spending half their time debugging things that "used to work." The second is adding features without fear. Writing tests feels like extra work until the day it saves you from a 2am production incident. I've been on both sides. The difference isn't talent or speed. It's whether you want to pay now or pay later. And in my experience, paying later always costs more. Which side of this have you been on? #Python #SoftwareDevelopment #Testing #C2C #CleanCode #Backend #SoftwareEngineering #PythonDeveloper
I've personally been on the side of implementing safety guards and preventative measures in my code before hand so that I do not end up paying for my mistakes later.
#CFBR
The harder truth is that fewer and fewer want to pay at all anymore — and that's a organizational culture problem before it ever becomes an engineering one. Businesses have conditioned themselves into short-cycle thinking, and the cost of that rarely shows up on the sprint board. It shows up six months later in a 2am incident, a delayed release, or a codebase nobody wants to touch. Speaking from the IC side: given the latitude, I'd have comprehensive unit tests, full integration coverage, and solid observability baked in from the moment something exits POC. Not because it's idealistic -- because I've maintained large-scale systems long enough to know exactly what the alternative looks like at 2am. The thing is, that choice is rarely ours to make. By the time it reaches the engineers, the trade-off has already been decided somewhere up the chain. We inherit the consequence, not the decision. The developers in this story aren't just exhibiting different habits - they're operating under different constraints. The one "paying later" may not have had a choice about when to pay in the first place.