Marcio Barbosa
Full-Stack Developer

With 5+ years experience and an ability for rapid learning, I'm driven by curiosity about innovation and emerging technologies such as AI and blockchain.

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Skills

Frontend

  • React & Next.js
  • TypeScript & JavaScript
  • Tailwind CSS
  • Electron (macOS/Windows apps)
  • Godot (Game Engine)

Backend

  • Node.js & Express
  • REST APIs & WebSockets
  • MongoDB
  • Python
  • NestJS

AI & ML

  • OpenAI and other LLM Integrations
  • AI Agents
  • Speech-to-Text
  • Text-to-Speech
  • MCP

Blockchain

  • Solidity (Smart Contracts)
  • Ether.js & Web3.js
  • IPFS
  • The Graph
  • Chainlink

Soft Skills

  • Adaptability & Quick Learning
  • Problem-Solving & Analytical Thinking
  • Product vision
  • Ownership & Initiative
  • Creativity & Innovation

Experience

Full-Stack Developer

•Independent Contractor
Jan 2021 - Present•Remote

Designing and building diverse software solutions including web applications, AI-enhanced tools, data analytics platforms, blockchain solutions, and automation systems.

Technologies

JavaScript/TypeScriptReact & Next.jsNode.jsPythonMongoDBOpenAI APISmart ContractsSolidityEther.jsWeb3.jsRest APIWebhooksGitDocker

Full-Stack Developer

•Ethereum FoundationView Project →
Mar 2023 - Nov 2023•Remote

Engineered privacy-focused web tools for the Zuzalu Montenegro community project, implementing authentication systems and event management features.

Technologies

Zero-Knowledge ProofsSemaphore ProtocolNext.jsReactTypeScriptNode.jsTailwind CSSSupabase

Attorney

•Legal Practice
2013 - 2018•Brazil

Specialized in public law and constitutional rights advocacy, handling cases in environmental law, civil contracts, and representing public sector unions.

Side Projects

Intocoin - AI Analytics Platform

Visit Project →

Intocoin tracks real-time tweets from a curated list of top crypto 𝕏/Twitter profiles, analyzing market trends and sentiment. It delivers valuable insights and analysis, curating the latest discussions, and providing users with key data to make smarter, informed investment decisions.

Tech Stack

Next.js & TypeScriptMongoDBNode.jsExpress.jsMVC patternHerokuRESTful API

Ohcryp - AI Crypto News Summarizer

Visit Project →

Ohcryp summarizes crypto news from 5 main sources using AI, providing concise insights and labeling each news item as bullish, bearish, or neutral. A personal project for quick market analysis.

Tech Stack

Python & FlaskMongoDBOpenAI APIWeb Scraping (BeautifulSoup4)Telegram Bot APIHeroku

Note AI - Meeting Summarization App

Private Project

A macOS desktop application that uses AI to automatically capture and summarize online meetings. The app employs advanced AI agents to extract key points, action items, and decisions from meetings. Not publicly available, but can be showcased upon request.

Tech Stack

TypeScriptElectronC++AI AgentsOpenAI APIWebSocketsLangGraphPostgreSQLPrisma ORMDocker

Let's Connect

Let's collaborate on innovative solutions that push the boundaries of technology and creativity.

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