Originally published on lavkesh.com
When the clock is tight, code reviews slip off the list. I’ve watched teams spend months fixing bugs that a quick second look would have found in minutes.
A review is more than a typo check. It pulls in the team's shared wisdom, uncovers hidden assumptions, and shows how others tackle problems. That insight outweighs a missing semicolon.
Quality assurance is the core of a review. Does the code meet standards, survive load, and avoid security gaps? That’s only one angle. Reviews also circulate knowledge. New hires spot patterns they’ll reuse; veterans see where teammates struggle; and everyone improves at reading code, which is the bulk of what we do.
I’ve seen code reviews catch issues that would have caused significant downtime. For example, a review at one company I worked with caught a bug that would have caused a 30% increase in latency, which would have resulted in a loss of around $100,000 per day. The fix took around 2 hours, a tiny fraction of the cost of the potential loss.
