On my last project, I had to revamp part of a business application that came with serious problems. The code was originally bought from another company without proper review, and it showed. From day one, it felt like walking into a messy room where everything was broken, misplaced, or half-done.
The source code itself was a nightmare — full of spaghetti logic, random files, and outdated functions. Some features worked, others didn’t, and no one really knew why. Even small changes caused new bugs, which made debugging feel like chasing shadows.
The infrastructure setup was no better. It felt like trying to navigate in a cold, stormy night — part of it worked, part of it didn’t, and some parts were just… there, serving no clear purpose. On top of that, the most important logic in the system was either broken or left unfinished.
To make things worse, the software relied on old and unsupported packages, making it hard to upgrade or secure.
Despite all these challenges, I took it as an opportunity to bring stability and structure. I rebuilt critical modules, cleaned up the architecture, and made the system easier to maintain. It wasn’t easy — but turning chaos into clarity is what makes engineering so rewarding.
This post is part one of a four-part series, where I’ll share exactly how I started fixing different parts of this application — from refactoring and debugging to setting up a stable infrastructure.
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