oscar castaneda
Backend

Lessons From Debugging in Production

It's terrifying — and incredibly valuable

Close-up image of a ladybug on a grass blade, showcasing details of the insect in a natural setting.

Photo by Pixabay from Pexels.

No matter how many tests you write, production will always surprise you.

One time, an edge case related to time zones broke a financial report — but only for users in Argentina. No one caught it in staging.

That experience taught me a few things:

  • Add logging before you need it
  • Feature flags are your best friends
  • Panic fixes usually create future bugs

Production debugging humbles you. But it also sharpens your instincts.

After that, I started logging with context, not just messages. Every debug step became a breadcrumb for future me.

Author

OC

Oscar Castaneda

Financial software development