Jero Sanchez
Software Engineer. Building things that matter.
Welcome back!Here you have the latest
chapter of my story, ready for the curious mind. Grab a seat, get comfortable, and let’s see
what new twists are on the table today:

Owned in Production: How AI Can Be Your Best Friend or Your Worst Enemy
What happens when an AI-assisted runbook ships a critical security gap into production—and the same AI helps you close it in thirty focused minutes? A story about professional incident response, cryptominers, and why human judgment is the difference between AI as a force multiplier and AI as a liability.
Read more ⟶The Rest Of The Story:
Catch up on the chapters that brought me here.
The Bug AI Cannot See: How Keeping Humans In The Loop Saves Real Money

What happens when a senior engineer spots what 500+ tests and a green pipeline completely missed—not a missing line, but a missing abstraction? Here's why that judgment cannot be delegated to an AI, and why patching your prompts won't save you.
Read more ⟶ClickNBack: Building a Cashback System That Earns Its Complexity

What happens when you pick a domain where sloppy thinking has real consequences? A production-grade cashback platform backend—live, continuously deployed, and engineered around the constraints that make financial systems genuinely interesting.
Read more ⟶Before You Ask: What You'll Find If You Read ClickNBack

What happens when a senior engineer opens your GitHub repo instead of just reading the README? A tour of the decisions, constraints, and practices worth examining in the ClickNBack codebase—including how AI fits into a disciplined engineering workflow.
Read more ⟶The Pivot: Why I Dropped a Marketplace for a Cashback System

What happens when the project you've been building turns out to be the wrong proving ground? After two months away, here's the honest story of why everything changed—and why that clarity was worth waiting for.
Read more ⟶