How I Handled a Bug in Production: A Behind-the-Scenes QA Walkthrough

TestingDebuggingBug Fixing

This is a honest breakdown of how I personally approach production bugs — what I do, what I've learned, and what I try to improve each time.

the implementation

Confirm First

Before touching anything, I confirm the issue is real. I try to reproduce the bug reliably, check the browser console or server logs, and gather basic context — which user was affected, what device, what time. Only once I can reproduce it consistently do I treat it as a confirmed bug.

Assess the Impact

Not all bugs are equal. I quickly ask myself: how bad is this, really? If it's breaking core functionality or affecting many users, it's critical and needs immediate action. If it's a minor edge case, it can wait for the next deployment.

Communicate Early

One mistake I used to make was staying quiet until I had a fix ready. Now I communicate as soon as the bug is confirmed, what's broken, who's affected, and what I'm currently doing about it. Early communication gives the team a chance to prepare a workaround while I work on the actual fix.

Communicate Early

Find the Root Cause

I usually start by checking the browser's network tab and console — looking at what requests are being made, what the API responses look like, and whether anything returns an unexpected status or payload. Most of the time, the clue is right there. If I still can't pinpoint the issue, I'll reach out to the developer to help dig into the server logs. It's a team effort, and knowing when to ask for help is just as important as the debugging itself.

Write a Short Post-Mortem

After resolving the issue, I take a few minutes to write down what happened, what the root cause was, and how it slipped past our tests. It doesn't need to be a long document — just enough to ensure the same bug doesn't catch us off guard a second time. This habit has saved me more than once.

Bugs in production are inevitable — what matters is how you handle them. The key is to stay calm, confirm the issue before acting, and assess how severe the impact is. Communicate early to your team even before you have a fix ready. To find the root cause, start from the browser console and network tab, check API requests and responses, and escalate to the backend developer for server logs if needed. When fixing, prioritize being careful over being fast — always test on staging first, and consider a rollback if the bug is critical. Finally, write a short post-mortem so the same issue doesn't catch you off guard again. Production bugs aren't something to be ashamed of — they're opportunities to build better, more resilient systems.