Senior Frontend Engineer
ÍcaroHarry
Over 12 years crafting web experiences. Co-founder of Codante.io. Passionate about open-source, teaching, and building products that empower developers.

Experience
My Journey
Over a decade of building products, leading teams, and teaching the next generation of developers.
Frontend Tech Lead
Leading frontend development on Studio, a web interface for financial institutions to build payment infrastructure. Delivering features end-to-end, implementing observability with PostHog and Sentry, and strengthening the testing stack with React Testing Library and Playwright.
Co-Founder
Co-founded an open-source learning platform for Portuguese-speaking developers. Built the platform from scratch, scaled to R$5k MRR and 4000+ users. Created dozens of courses on React, Next.js, TypeScript, and Tailwind.

Codante.io
Remix • Laravel • MySQL • Tailwind
Open-source learning platform empowering thousands of Portuguese-speaking developers to master frontend development through hands-on challenges and courses.
Visit CodanteBuild a Habit Tracker with Next.js 13
YouTube Tutorial • 11k+ views
Hands-on tutorial building a mobile-first Habit Tracker application using Next.js 13. Part of Codante's mini-project challenges.
Watch on YouTubeFrontend Engineer / Coach
Developed internal tools using React and Next.js. Created learning materials and mentored 10+ interns and junior developers through lectures, code reviews, and performance evaluations.
Engineering Manager
Nov 2021 - Jun 2022
Managed a team of 12 developers/teachers teaching frontend development to 400+ students. Responsible for career development, performance reviews, and hiring.
Frontend Engineer / Instructor
Jul 2020 - Nov 2021
Taught frontend development to 600+ students. Improved learning materials and contributed to the automated evaluation system using CI/CD pipelines.
How to Create a Bootable USB Drive
YouTube Tutorial • 130k+ views
Step-by-step tutorial teaching how to create a bootable Linux USB drive. One of Trybe's most popular educational videos.
Watch on YouTubeFull Stack Engineer
Delivered 5 projects for clients including Banco BMG, AeC, and Robbyson. Built web and mobile products using React, React Native, Node.js, Vue.js, and Firebase.
Full Stack Engineer
Utopian.io
Developed the Utopian v2 platform integrating with Steem blockchain and IPFS. Built the OAuth authentication service and decentralized file storage infrastructure. The platform generated over $1.5M benefiting thousands of open-source contributors worldwide.
Frontend Engineer
Swapy Network
Built frontend and desktop applications connected to the Ethereum blockchain. Led mobile app development with React Native and contributed to web3.js, the most important JS library in the blockchain space.
Electron MetaMask Boilerplate
Electron • MetaMask • Ethereum
First open-source desktop integration for MetaMask, used by dozens of companies to distribute their dApps natively.
View on GitHub
Integrating MetaMask with Electron
Medium Article • 236 likes
A simple, secure, and non-intrusive approach to integrating MetaMask with Electron desktop applications.
Read on MediumFull Stack Engineer
Nebulab Technologies
Developed a tool to help health researchers with data management. Built an open-source library for Dropbox API integration. Worked with Angular, Node.js, MongoDB, and AWS.
Dropbox V2 JS Library
JavaScript • Dropbox API
Open-source library to integrate with the Dropbox API v2, simplifying file operations for JavaScript applications.
View on GitHubFull Stack Engineer
Led development of Developer Studio, an internal visual tool to build cross-platform applications using Angular JS, PHP, MySQL, and Node.js.