How Code Reviews Made Me a Better Engineer

Nalaka Sampath — Thu, 15 May 2025 02:57:11 +0000

"Great engineers write code. Exceptional engineers review it."

When I first started my journey as a developer, I saw code reviews as a formality - a box to check before merging a pull request. Fast forward to today, as a Senior Software Engineer, I can confidently say that code reviews are one of the most valuable growth tools in our profession.

Here’s how code reviews have shaped me into a better engineer - and how they can do the same for you.

🔍 1. I Started Thinking Like a Reviewer

Writing code is one thing. Reading and reviewing someone else's code forces a different mindset - you look for:

Readability
Security
Performance
Edge cases
Test coverage

Over time, I began to write my own code as if I were reviewing it later. This improved my clarity, naming conventions, and modularity significantly.

🧠 2. I Learned from My Mistakes (and Others’)

Every code review is an opportunity to learn - whether you're giving or receiving feedback.

Some of my key lessons came from reviewers who:

Suggested better LINQ queries in C#
Pointed out SQL injection risks
Recommended using design patterns like Strategy or Repository
Flagged inconsistent exception handling

Reading others’ PRs also exposed me to new ideas and styles. I started bookmarking great code snippets for future use.

🤝 3. I Got Better at Communication

Giving feedback in a code review is a soft skill. Early in my career, I’d write things like:
“This is wrong.”

Now, I phrase feedback constructively:
“Would it be clearer if we extracted this logic into a separate method for readability?”

Being respectful and collaborative made my feedback more effective - and helped build trust in the team.

🔄 4. It Reinforced Team Standards

Code reviews help ensure everyone follows coding standards, naming conventions, and architectural decisions.

As a senior, I use code reviews to mentor junior devs - suggesting improvements and explaining the “why” behind the feedback. This boosts code quality and team alignment.

🚀 5. It Made Me a More Thoughtful Engineer

Code reviews forced me to slow down and think critically:

Is this code easy to test?
What happens if X service is down?
Will this scale?
Can we refactor this logic into a shared helper?

These questions made me shift from a “just make it work” mindset to a “make it right, then fast” approach.

💡 Final Thoughts

Code reviews aren’t just about finding bugs - they’re about growing as an engineer.

Whether you’re reviewing or being reviewed, every session is a chance to:

Learn something new
Improve your thought process
Write cleaner, more maintainable code

If you're not taking code reviews seriously yet - start now. Your future self (and team) will thank you.

✍️ What has code review taught you?

Let’s share experiences in the comments - I’d love to hear your lessons and tips!

DEV Community: Nalaka Sampath

How Code Reviews Made Me a Better Engineer