Hi, I'm Marcelo
Product Engineer & AI Tool Builder. ITA-trained, Ex-Google, with 15+ years of experience. I write and review code while using AI agents like Roo Code and GitHub Copilot as teammates to ship faster.
15+
Years coding
4.5
Years at Google
ITA
Top engineering
About Me
Building with AI as my teammate
I wrote my first line of code in 2010, in C. Today I work mostly with TypeScript, Next.js, React, TailwindCSS, and shadcn/ui. I use Roo Code, GitHub Copilot, and other AI agents as an integral part of my workflow, maintaining architectural oversight while shipping faster.
I worked at Google for 4.5 years and left to pursue entrepreneurship. Now I'm building developer tools and micro-SaaS with an "Engineer in the Loop" approach: I write and review code while AI accelerates implementation. Architecture and quality remain my responsibility.
Engineering Philosophy
Daily Drivers
Battle-Tested
AI Workflow
Exploring
Portfolio
Selected Works
Building developer tools, AI-native applications, and products.
VSCode Improved
Extension Bundle & DX Tools
A VS Code extension bundling quality-of-life improvements. Built to improve my own workflow.
Why it matters: Hands-on experience with the VS Code Extensions API.
GhostKeys
Rust Utility & Spec-Driven
A keyboard remapper in Rust. Recreating Kiro's spec-driven workflow using Roo Code + GitHub Spec-Kit to validate this approach for the community.
Why it matters: Validating new AI-first development workflows.
Brave BYOM Compat
LLM API Middleware
Compatibility layer between Anthropic's Claude models and Brave's Leo AI OpenAI-only API.
Why it matters: More LLM choices for non-premium Brave users.
Concept Compass
AI Mind-Mapping
An infinite mind-map generator using OpenAI's OSS models. Built specifically to test and learn Kiro, an AI-powered, spec-driven coding assistant.
Why it matters: Deep-diving into AI coding assistants' capabilities.
DevMagic
DevContainer Configuration
A devcontainer setup that "just works". Built in public to help developers avoid configuring the same environment settings over and over again.
Why it matters: Solving the "works on my machine" problem.
Adapta AI Challenge
🏆 Top 3 / 2,000+ applicants
OOH analytics tool built in ~24 hours for Brazil's largest AI hackathon. Presented to ~7,000 people at the Adapta Summit main stage.
Why it matters: Selected from ~80 finalists (2,000+ applicants). High-pressure, high-visibility delivery.
Viralei
AI Video and Content Generation · Top 9 / 36
Turns legislative bills into engaging TikTok-like videos using AI. Built and deployed the MVP in 4 days with Next.js.
Why it matters: Demonstrates high velocity and product sense.
Journey
Where I've been
A timeline of my professional experience building software and products.
Futurin
AI Tool Builder & Micro-SaaS Founder
Hubla
System Design, OpenTelemetry, Payments (Checkout)
Vender Bem Online
Digital Marketing, PLF, Paid Ads
Frontend, Chromium, Data Pipelines (Apache Beam, Pandas)
Google (Intern)
iOS Automated Testing, EarlGrey
ITA
Computer Engineering + Netherlands Exchange
Contact
Let's Connect
Have a project in mind or just want to chat? Feel free to reach out.