# Samuel Rizzon - Complete Profile

URL: https://www.samuelrizzon.dev

## About

Product engineer in Brazil, 10 years building for the web. Founder of Git City. Building at Delphi.

- Languages: Portuguese (native), English (fluent)
- Social handle: @samuelrizzondev (across all platforms)

## Contact

- Email: hello@samuelrizzon.dev
- GitHub: https://github.com/srizzon
- X: https://x.com/samuelrizzondev
- LinkedIn: https://linkedin.com/in/samuelrizzon
- YouTube: https://youtube.com/@samuelrizzondev
- Instagram: https://instagram.com/samuelrizzondev
- Website: https://www.samuelrizzon.dev

## Projects

### Git City
- URL: https://thegitcity.com
- Your GitHub as a 3D pixel city. Every building is a real developer.
- 85K+ developers

### ZardUI
- URL: https://zardui.com
- Open-source Angular UI library. The shadcn/ui for Angular.
- 1.1K GitHub stars

## Everything he made

- Git City (85K devs), https://thegitcity.com: A 3D pixel city in the browser where every building is a real GitHub developer.
- ZardUI (1.1K stars), https://zardui.com: Open-source Angular component library, co-founded. The shadcn/ui for Angular.
- Mute All on Meet (150K users): A Chrome extension built in a weekend during the pandemic. Sold after a year.
- Bible Quiz (22K downloads): His first app on the Play Store.
- Reply-OS (R$1K MRR), https://reply-os.com: AI SaaS for X/Twitter engagement. Built in a week, R$1K MRR in its first month.
- This site (0 lines by hand), https://www.samuelrizzon.dev: Rebuilt with Claude Opus 5.5: every pixel laid by tiny agents.

## Experience

### Delphi - Product Engineer
- Period: Jun 2026 - Present
- Location: Remote, San Francisco
- Building the web product for Delphi's Digital Minds: AI clones that answer in an expert's voice, 24/7
- Shipping features across a Next.js / Turborepo monorepo, from real-time conversations to voice AI experiences

### Blackthorn.io - Full-Stack Developer
- Period: Jan 2023 - Jun 2026
- Location: Remote, New York
- Led the complete UX/UI redesign of an e-commerce system integrated with Salesforce
- Created a CLI tool to automate release creation, saving the team one full day per release cycle

### CI&T - Senior Frontend Developer
- Period: Apr 2022 - Jan 2023
- Location: Campinas, Brazil (Remote)
- Led frontend development for Ford's F-150 pre-sale launch in Brazil, architecting the system from scratch
- Started a component library in Angular aligned with Ford's Design System

### TOTVS - Fullstack Developer
- Period: Dec 2016 - Mar 2022
- Location: Belo Horizonte, Brazil
- Led the frontend of the TOTVS Electronic Signature product: designed in Figma, built in Angular from scratch
- Built a Chrome extension and Windows app for A1/A3 digital certificate signing (ICP-Brasil)
- Passed load tests and OWASP Top-10 pentesting with zero vulnerabilities

## Skills

React, Next.js, Angular, TypeScript, Three.js, Tailwind CSS, Node.js, Supabase, PostgreSQL, Figma, Claude Code, Stripe

## Education

- Bachelor's Degree in Computer Science, Centro Universitario de Belo Horizonte (UniBH), 2015-2018
- Technical Degree in IT, UniBH, 2014-2015

## Publication

"Monitoring the Efficiency of Brazilian University Education through Based Solutions and Mobile Applications" - Oxford, 2020

## Log

### How this site was built
- URL: https://www.samuelrizzon.dev/log/how-this-site-was-built
- Date: 2026-10-05
- I rebuilt my portfolio with Claude Opus 5.5. No complex prompts: the exact messages I sent, and how I got to something that isn't the usual.

## Course

Claude do Zero ao Deploy (https://www.samuelrizzon.dev/curso): Course (in Portuguese) teaching Claude Code from setup to deploying a real product: the Claude ecosystem, Samuel's workflow, and a project built from scratch with Next.js, Supabase and Vercel.