I’m Sameer, a full-stack developer focused on building scalable web and mobile applications using JavaScript, React, Next.js, and Node.js. I work across frontend, backend, databases, and cloud infrastructure to deliver reliable, production-ready solutions.
When we talk about security, frontend engineers are often treated as secondary players. This article is not about basic security checklists. It's about subtle, real-world security mistakes frontend engineers make — even at senior levels — and why these mistakes keep repeating across companies.
I started my career as a backend engineer. I used to think the backend was where the “real” complexity lived. We had distributed systems, eventual consistency, and database locks. The frontend? I thought that was just painting buttons and making API calls.
A few years ago, I watched a senior developer in our team spend an entire afternoon writing unit tests for a moderately complex form component. Hours of scanning through props, mocking edge cases, fixing linter issues—it was the kind of work that felt more tedious than impactful.
