The 0.1x engineer
We have 200 features. Customers use about 20% of them. A throwaway Slack joke turned out to be a surprisingly good engineering philosophy.
Tiago Araújo
Recent content on Tiago Araújo
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Whose name is on it
Code review, QA sign-off, and retros often move responsibility around until nobody is actually holding it.
The week the AI went down
A thought experiment: every AI coding assistant goes offline for seven days. How much of what I call my skill is actually mine?
About
I’m Tiago Araújo, a software engineer with 9+ years building intelligent systems and modern web applications. I work across the stack: Python, React, and Node.js, with a particular focus on AI/ML and LLM-powered features that solve real problems. These days I’m a software developer at Chaser (remote, UK), where I architect scalable Node.js systems, tune cloud infrastructure on GCP, and…