I don't just write code. I own systems. This means being accountable for everything from initial architecture decisions to monitoring in production, performance during peak load, and conducting thorough post-mortems when things fail.
Ownership means understanding that every line of code has operational consequences. It means designing with failure in mind, building observability from day one, and being the one paged when the system alerts at 3 AM.
In 8+ years of production systems, I've learned that reliability is earned through ownership, not delegated through responsibility matrices.