5 Architecture Mistakes I Made as a Full-Stack Developer (And What They Taught Me)

After more than 9 years building web and mobile applications with React, Node.js, TypeScript, PostgreSQL, MongoDB, AWS, and GCP, I've made my fair share of mistakes.

Some were small.

Others required late nights, emergency fixes, and difficult conversations with stakeholders.

Looking back, those mistakes taught me more than any course or certification ever could.