Software Engineering is Just Advanced Damage Control.

What actually separates a senior engineer from the pack? It’s not just writing features; it’s error handling. It’s optimizing a system to fail gracefully.
Think about the lifecycle of a single request. When it depends on an external network call, do you just try it once, throw an error, and hope the user hits refresh? Or do you build in idempotent retry mechanisms and handle downstream server failures?
What happens if a database connection drops mid-query? What’s the fallback when the DB is entirely unavailable? From an operating system process malfunctioning to complete memory or disk exhaustion, computers are inherently prone to failure.
The defining trait of a mature engineer is the assumption that things will go wrong. You have to design systems to be fault-tolerant, ensuring they can recover when the inevitable happens.
At the end of the day, software engineering might just be the art of preventing computers from failing.