@marcosfelipe

Marcos Feijó Felipe

@marcosfelipe

Architectural deep dives, scaling systems, and technical leadership strategies from a Staff Engineer.

Joined December 2025

Marcos Feijó Felipe's blogs

Beyond the Code with Marcos Felipemarcos-felipe.hashnode.dev5 posts

Recently published

marcos-felipe.hashnode.dev

The Ownership of Failure: Moving Beyond the 500 Internal Server Error

The other day, I was reviewing a PR when my "Spidey-sense" started tingling. A sequence of throw calls caught my attention. After some digging, I realized the code was catching a specific validation error and re-throwing it as a generic "Unexpected 5...

4d ago3 min read

marcos-felipe.hashnode.dev

Beyond the Syntax: The Stress and Success of the Language Shift

The Eye-Twitch of the Unknown Early in my career, I was a Senior Backend Engineer who found safety in my domain. I knew my language, my frameworks, and my ecosystem like the back of my hand. Then came the request: "We need you to switch." I’ve jumped...

Feb 92 min read

marcos-felipe.hashnode.dev

Beyond the Code: Good Systems are Raised, Not Just Written

The 6-Month-Old Puppy Principle I’ve spent a lot of time lately training my dog. He’s been with us for four months now, barely six months old, and our days are filled with the basics: sit, lie down, paw. But we’re also working on the harder stuff—pat...

Feb 23 min read

marcos-felipe.hashnode.dev

Why You Shouldn't Drive a Nail with a Wrench

The Illusion of "Same-Same" I was recently in a debate with some coworkers about event brokers. The conversation drifted toward Kafka Log Compaction—a specialized feature that ensures you always have the latest state of a data key. While it sounds li...

Jan 214 min read

marcos-felipe.hashnode.dev

Refactoring as a Daily Practice: Evolving Systems Organically

The Great Divide: Stagnation vs. Re-invention In every engineering department, you’ll find two opposing schools of thought regarding legacy code: The "If it ain't broke, don't touch it" camp: They argue that if a Java 8 system is running on-premise,...

Jan 163 min read

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Marcos Feijó Felipe

Marcos Feijó Felipe's blogs

Recently published

The Ownership of Failure: Moving Beyond the 500 Internal Server Error

Beyond the Syntax: The Stress and Success of the Language Shift

Beyond the Code: Good Systems are Raised, Not Just Written

Why You Shouldn't Drive a Nail with a Wrench

Refactoring as a Daily Practice: Evolving Systems Organically