In software development, there's a basic principle: even the most experienced developers can slip up just from fatigue or getting too focused on the details. That's why code review—the stage where a colleague checks over the code—has become a standard in modern tech companies.

It's not a way to micromanage but a tool for shared responsibility that makes the product more reliable overall.

So, what does this approach really deliver?

• Better code resilience. A fresh pair of eyes can spot vulnerabilities or logical inconsistencies that the original author might have missed. It's way cheaper to fix bugs before release than after.
• Consistency across the board. It's crucial for the entire project's code to follow the same style. That way, any developer on the team can quickly dive into someone else's work if there's an urgent need.
• Knowledge sharing. During reviews, the team learns in real time. Junior folks pick up best practices, while seniors get exposed to new techniques and libraries their colleagues are using.
• Reducing the "bus factor". Thanks to Code Review, knowledge about how a specific function works isn't just stuck in the author's head—it's shared with at least one other team member.

Building a healthy review culture is key for keeping that process constructive. We're fostering a culture where code comments aren't personal attacks, but a collaborative hunt for the best solution. After all, our shared goal is to build a product that runs flawlessly.

When code gets looked at by "four eyes," the real winners are the client and the end user.