Every senior engineer carries an internal museum of bugs that took too long to find. The good ones turn that museum into tooling — scripts, dashboards, lint rules — so the same bug class cannot eat anyone’s afternoon again.
This is the unglamorous work that compounds. Nobody writes a blog post about a lint rule. The lint rule will quietly prevent a hundred outages over its lifetime, none of which will show up in any retrospective because they did not happen.
Build the debugger you needed yesterday. Future-you, and everyone you have not met yet, will inherit the savings.
