Notes from a Principal Platform Engineer
I design software
platforms that make change
inexpensive.
I’m Antonio, a Principal Platform Engineer. I share the decisions and tradeoffs behind software that teams can confidently maintain and evolve.

From the field
Business capabilities should outlive vendors.
Changing a payment provider should not mean rebuilding checkout. This case study shows how business rules stayed separate from vendor details, and what that separation cost the team.
Read the case studyYour first engineering partner
Build your first product before hiring an engineering team.
I help startup founders decide what to build first, then design, build, and launch it. I can handle the application, infrastructure, and integrations, keeping the scope practical and the software understandable for the engineers who join next.
Principles
All design principlesOptimize for the next engineer
Make dependencies, ownership, and failure behavior easy to understand. The next engineer should be able to build on a decision without reverse-engineering it.
Prefer practical simplicity
Choose the least complex architecture the team can confidently operate. Add machinery when the business problem justifies the cost of owning it.
Recent writing
All writingWhen AI Writes Faster Than We Understand
Real review examples show how I use AI to challenge complexity, preserve useful tests, and keep the next change understandable.
“We Don’t Know” Doesn’t Mean “You Can’t Buy It”
A failed delivery check can turn into a lost purchase. How to distinguish what your store cannot do from what its software could not confirm.
Before You Delete the Test, Break the Behavior
How deliberate regressions help distinguish redundant tests from essential coverage when simplifying a test suite with AI.
Work with me
Bring the platform challenge.
I help teams review architecture, untangle enterprise integrations, and plan migrations with a clear plan for keeping the business running.

